Digital Camera Reviews

A blog about reviews of digital camera, camcorder, laptops and batteries

Search Results Archives: December 2011

TOSHIBA PA3465U-1BRS Laptop Battery Reviews

by Dou

Published on: December 29, 2011

Categories: Other

Tags:PA3465U-1BRS

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Hot TOSHIBA PA3465U-1BRS laptop battery online reviews. The Toshiba batteries are from the online batter stores. This TOSHIBA PA3465U-1BRS battery is special designed for the hot Toshiba laptops such as Satellite A Series, Satellite A85 Series, Equium Series and so on.

TOSHIBA PA3465U-1BRS battery

Cheap, brand new, 100% OEM compatible. One year warranty and 30-day money back guarantee! Battery manufacturer online wholesale and retail.

And now this TOSHIBA PA3465U-1BRS battery is discount for Europe. There are 3 types of this Toshiba laptop battery, 4400mAh, 6600mAh, 8800mAh.

Interesting Major Events in 2011 IT

by Dou

Published on: December 26, 2011

Categories: Other

Tags:Interesting Major Events in 2011 IT, IT news 2011, major it events

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There are many interesting and major events 2011 in the IT field. let’s make a review of them. Cruiser in December 9, 2011 notice was published, the official cost of 9.7693 million yuan acquisition of a Japanese manufacturer of high-end headphone STAX, expected acquisition will bring advanced electrostatic headphones Cruiser design, production capacity, and promote the to further attack the high-end headphone market as Motorola pmnn4046 battery, Apple MacBook 13-inch A1278 battery and hp pavilion tx2500 adapter.

The acquisition of STAX caused great concern to enthusiasts, movers, chairman Zhang Wendong in the subsequent open letter revealed the brand’s future development plan for the STAX. He said, STAX will operate independently of the way “to continue the operation and is always down.” This includes Meguro Yang made, STAX all personnel within the operations team will be perfectly preserved, so STAX will still be 100% of the Japanese R & D, manufacturing, product quality will not change.

Next: Since the total smartphone market share hovered around 2%, and Sony Ericsson co-operation between the decade come to an end earlier this year announced. October 27, Sony Ericsson announced the Sony Ericsson will acquire 50% stake held by Sony Ericsson to complete the transaction Housuo Ni will gain full control of Sony Ericsson. Sony Ericsson Sony subsidiary after becoming integrated into the Internet, consumer electronics platform, the transaction amount up to 10.5 billion euros.

Then: No permanent friends, only permanent interests. This is bolstered by the Wintel alliance relationship is really a great description. As the urgent need to make a counter-attack the mobile space, Microsoft is hoping Windows 8 system to show their power, so impatient to increase support for the ARM architecture.

What’s more: In July, Nortel Canada’s patent battle, has always been considered competitors of Apple, Microsoft actually unite against Google, which only shows that 6000 patent for the future pattern of how important the industry. To lose the war Google has a monopoly of them as malicious conspiracy.

In the August 19 meeting of the third quarter, Hewlett-Packard CEO Apotheker (LeoApotheker) officially announced that it would stop around the WebOS operating system’s hardware, including the TouchPad tablet and WebOS smartphone. At the same time, due to low profits, HP also said to consider the spin-off PC business.But then the company’s inconsistent for the industry to surprise, especially the TouchPad crazy $ 99 after big sale actually received unexpected good results. Resulting in increased supply Hewlett-Packard, the trend is quite back from the dead. The PSG is also head of Bradley singing a different tune, saying the PC business takes a long time to determine ownership, spin-off will be adversely affected.

No matter from which terms, Google on Motorola mobile acquisition of up to 125 billion in 2011 must mention the acquisition of large events. Which involves moving pattern, Android camp development, patent disputes and other sensitive and complex area, so much attention.

February 11, 2011, long-planned alliance Microsoft Windows Phone Nokia officially announced. In the Smart missed this excellent development opportunities in key areas, Nokia has hired to work at Microsoft Stephen Elop as CEO, and along with the “undercover” suspect, Elop to Nokia mobile phone pressure in the future entirely old club over the Windows Phone system.

Storage Media of Digital Cameras

by Dou

Published on: December 23, 2011

Categories: Camera and camera battery

Tags:card, memory, Storage Media

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Digital cameras change the image signal into a data file and store on magnetic media or optical recording media device. If the digital camera is the host computer, then the memory card is equivalent to a ThinkPad t43 battery computer hard drive. Storage memory can record image files in addition to accidents, you can also record other types of files, and computer connected via USB, it becomes a removable hard disk. Common NIKON EN-EL12 battery storage media market, the CF card, SD card, SM, Memory Stick, and a small hard drive. Maybe you will see there are many memory card reader in the market, such as 4-in-one memory card reader, all-in-one memory card reader and so on.

CF card:
CF card (Compact Flash) in 1994 first introduced by SanDisk. CF card with PCMCIA-ATA functionality and compatible; CF card weighs only 14g, only a matchbook-sized (43mm x 36m x m3.3mm), is a solid product, that is, work without moving parts. CF card uses flash memory (flash) technology, is a stable storage solution, which does not require the battery to maintain stored data. Of the saved data is, CF card than traditional disk drives security and protection are higher; than conventional disk drives and PC card type Ⅲ 5 to 10 times as high reliability, and power consumption is only CF card for small disk drives 5%. CF card use a voltage between 3.3V to 5V operation (including 3.3V or 5V). These conditions make the most excellent digital camera to select the CF card as its storage medium of choice.

CF card as the worldwide storage industry standards to ensure compatibility of CF products, to ensure backward compatibility with CF card; as more and more widely used CF card, CF card of the company to actively promote the technology, to promote a new generation of body small light weight, low-power launch of advanced mobile devices, thus improving efficiency. CFA headquarters in Canada, Palo Alto, whose members have the free CF card, CF and CF trademarks technical details. CFA members include 3COM, Canon, Kodak, HP, Hitachi, IBM, Panasonic, Motorola NTN7143 battery, NEC, SanDisk, Seiko (Epson), and Socket Communications, more than 120. And one of the major digital camera manufacturers produce R & D has set up a special organization, engaged in the development of CF products.

CF card has the following disadvantages:

1, the capacity is limited. While the capacity increase exponentially, but still keep up with the development of digital camera pixels. The current products have more than 5 megapixels is the minimum specifications of the popular high-end products, while the civilian market has reached the mainstream level 3 megapixels. Ordinary civilian JPEG compression format, the capacity can still be, but the professional level of TIFF (RAW) format, or image data does not fit a few.

2, The size is large. And compared to other types of memory card, CF card size slightly too large, which limits the use of CF card size digital camera, it holds many lessons for most of the popular ultra-thin digital camera gave up the CF card, and switch to a more compact size SD card.

3, Performance limitations: CF card is generally 0-40 degrees C operating temperature. So 0 degrees below the environment, basic digital camera can be turned into a “waste.” Even professional machines are not immune. Although the military capacity of the CF card cold -40 degrees Celsius, but when spread, when the price dropped to the point where ordinary people can afford is still unknown.

Currently the world’s largest capacity CF card type has reached 640M. General common market, is 8MB, 16MB, 32MB, 64MB, 128MB, 256MB and other types (128MB or more of the type Ⅱ).

SM card:

SM (Smart Media) card is a Toshiba released in November 1995, the Flash Memory storage card, Samsung in 1996 to buy the production and sale of licenses, the two companies to become major manufacturers of SM cards. Smart Media to promote the industry standard, in April 1996 established the SSFDC Forum (SSFDC the Solid State Floppy Disk Card, Smart Media, when in fact the beginning is called SSFDC, 1996 年 6 was renamed as Smart Media, and a Toshiba R). SSFDC Forum has over 150 members, also including many large companies such as Sony np-bn1 battery, Sharp, JVC, Philips, NEC, SanDisk and other manufacturers. Smart Media card is a common micro storage card on the market, once the MP3 player is very popular.

SM card size is 37mm × 45mm × 0.76mm (Figure 1), due to the SM card does not have the control circuit, and made of plastic (to be divided into many thin slices), so small SM card is very thin, in 2002, before which is widely used in digital products, such as the old Olympus digital camera and Fuji digital cameras and more use of older SM storage card. However, SM card is integrated in the digital control circuit which products (such as digital cameras), which makes digital cameras compatibility susceptible.

The new digital cameras now have not used in the SM memory card products.

SD card (Secure Digital Memory Card) is a flash memory device based on a new generation of semiconductor memory devices. SD card from Japan Panasonic, Toshiba and SanDisk Corporation in the United States in August 1999 jointly developed. Like a postage stamp size SD memory card, weight only 2 grams, but it has high memory capacity, fast data transfer rates, great flexibility and good mobile security.

SD card in 24mm × 32mm × 2.1mm for SanDisk flash memory card combined with volume control and MLC (Multilevel Cell) technology, and Toshiba (Toshiba) 0.16u and 0.13u NAND technology, through the 9-pin interface and a dedicated interface drive is connected, no additional power supply to maintain its information on the memory. And it is the integration of solid media, without any moving parts, so do not worry about the damage to the mechanical motion.

SD card structure can guarantee the security of digital file transfer, but also very easy to reformat, it has a wide range of applications, music, movies, news and other multimedia files can be conveniently saved to SD card. So many digital cameras have begun to support the SD card.

Many companies have developed a memory card SD card, SD card Panasonic is the leading manufacturer, in 2000, the SD card from 8MB to 64MB capacity has been divided into four different levels to meet the needs of different occasions, the data transfer rate 2MB / s. The end of 2001 single-card capacity has reached 512MB, data transfer rate is also raised to 10MB / s. Panasonic plans to launch in 2003 capacity of 1GB, the data transfer rate of 20MB / s high-performance memory cards, is expected to reach capacity by 2005 4GB. It seems another way of SD card storage media in the digital camera is expected to open in another piece of heaven.

Sony has always been a loner character created memory stick was born. The gum-based storage devices can be used with Sony almost all common audio and video products. Memory Stick (Memory Stick) thin, light, and has a full variety of functions. Its high compatibility and unprecedented “common storage media” (Universal Media) concept for future high-tech personal computers, televisions, telephones, digital cameras, camcorders and portable personal audio-visual equipment to provide a new generation of faster, larger capacity digital information storage, exchange media.

In addition to small form factor, with high stability and copyright protection, and easy to use in a variety of Memory Stick products and other characteristics, Memory Stick Sony’s advantage lies in the extensive use of the technology products, such as DV camcorders, digital cameras, VAIO personal computers, color printers, Walkman, IC recorders, LCD TV, the PC card adapter, 3.5-inch floppy disk converters, export converters in parallel and USB reader memory Stick and other line of accessories enables easy integration with PC and Mac connection.

Memory Stick launch, Samsung, Aiwa, Sanyo, Casio, Fujitsu, Olympus, Sharp, and a series of companies have expressed support for this format. Sony’s consumer electronics industry is also being sought and the IT industry on the Memory Stick format recognition. Sony will put more in the future on behalf of Memory Stick products introduced to the latest developments in the domestic market.

One disadvantage of Memory Stick can only be used in Sony digital cameras, and second, the capacity is still not big enough.

Battery Types

by Dou

Published on: December 23, 2011

Categories: Camera and camera battery

Tags:battery, li-ion, lithium, ni-mh, type

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Today we will talk about the battery types of camera batteries. Digital cameras need batteries to maintain normal operation. Under normal circumstances, a digital camera can work with dry batteries, alkaline manganese batteries, nickel-cadmium batteries, nickel hydrogen batteries, lithium-ion batteries and lithium batteries as its power source. At first let’s see some batteries such as: Lithium-ion ThinkPad T43 battery, Sony Np-bn1 battery, Ni-MH Motorola NTN7143 battery Canada and so on. Before you buy a camera do you mind if the camera work with which type of batteries?

Ni-MH battery
This battery is an early alternative to nickel-cadmium batteries, nickel-cadmium batteries as opposed to, nickel metal hydride batteries with more compelling advantages such as Motorola hnn9008a battery canada. It greatly reduces the presence of nickel-cadmium batteries in “memory effect”, which makes nickel-metal hydride battery is more convenient, longer cycle life (up to 1000). In addition, Ni-MH battery also has a high capacity, depth of discharge, resistance to overcharge and over discharge, charging time is short and obvious advantages. The most important thing is to use nickel-metal hydride battery is no longer toxic heavy metals as a material, can eliminate the pollution of the environment. Meanwhile, the electrical characteristics of areas with similar nickel-cadmium batteries, in practical applications can replace nickel-cadmium battery for any camera without the need for transformation.

Of course, the nickel-metal hydride battery is not perfect, it also has some disadvantages. Its relatively poor high temperature characteristics, temperatures above 45 degrees Celsius and 0 degrees Celsius environment of low temperature, nickel-metal hydride battery will not work, or simply can not start the camera; In addition, the battery self-discharge rate is relatively high, and stored for some time will find it significantly reduced power; there is a nickel-metal hydride batteries, there are also slight memory effect.

Alkaline manganese batteries
This battery is very easy to buy in the market to get the 5 batteries, and they do not go through special materials and technological innovation, the cameras use this type of batteries, which mostly are the low-end digital camera products. Because a wide range of marketing, so users do not need to worry about the price of the battery, but also because of technical general, the power supply and endurance far more than inferior to other types of batteries. Sometimes, these batteries can not offer enough power to start the digital camera, and even do bad affect to digital cameras.

Lithium Battery
Lithium-ion battery price is relatively high, but it has a light weight, large capacity, energy density advantages, compared with the nickel-hydrogen batteries, lithium-ion battery more lightweight, and has higher energy than 60%. Because of this, lithium-ion battery production and sales are gradually than nickel-metal hydride batteries, a digital camera is now one of the main use of the battery. In addition, lithium-ion battery is almost no “memory effect” and does not contain toxic substances, etc. are also important reasons for its wide range of applications.

Lithium-ion batteries and lithium battery technology, health, performance is better than just slightly higher price, but also use more attention, complex, particularly lithium-ion battery charger must be “special”, it can not charge the battery with other compatible. Alkaline-manganese batteries, although the price is low, consumers can afford, but its short life, long-term use for the average consumer is difficult to bear the costs. In contrast, nickel-cadmium batteries, nickel hydrogen battery technology is more mature in the manufacturing, prices are more reasonable battery.

If you are using does not match nor do not pay attention to save the battery, the battery will take a few photos in when you do not run out. The following ways to save NIKON EN-EL12 battery consumption:

first, to avoid unnecessary use of the zoom operation;
second, to avoid the frequent use of flash, the flash is a big power, we try to avoid using;
Third, adjust better to use the viewfinder when the picture composition device, instead of LCD. Because most digital cameras are due to open the LCD viewfinder and consume more power, turn it off can increase two to three times the battery standby time;
fourth, minimize the use of multi-shot. Mostly, digital camera’s continuous shooting function use the built-in cache to temporarily store digital photos. If you frequently use the cache, then the power required is very large.
Therefore, reducing the use of video shooting and video recording function will help to save power greatly.

Find and Replace

by Dou

Published on: December 21, 2011

Categories: Other

Tags:find, Regular expression, replace

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Do you always use the find and replace faction of the common software such as Dreamweaver? Do you have test how powerful is the Find and Replace of Dreamweaver? Because I always use this software in my work, so I take it for example, though this faction are also can be used in the common office software and many other case.

As we do online wholesale and retails, so our company operate many worldwide online stores for different countries. And for many stores the products are called from a specific server, and in the past two days, the server have got a updated, so our images ip has been all changed, and there were no images be shown on our site such as Lenovo 3000 N500 battery, ThinkPad R51 battery and Acer Aspire 4750g battery.

It’s a great work to change all the files one by one, thanks to the powerful faction. The following are some examples for you to test it, before that, press Ctrl+F after open the software, and then check the Regular expression.

1. If you want to change the code as

tppabs=”sfsf”

tppabs=”dffjie”

…. to

tppabs=”1234″

You can type tppabs=”[^"]*” and tppabs=”1234″ respectively to the find and replace box, and then click the replace it will do as your needs.

. Matches any character except a newline.
\ w matches letters or numbers or an underscore or characters.
\ d matches a digit.
\ s matches any whitespace.
\ b matches a word beginning or end.
^ Matches the beginning of the string.
$ Matches the end of the string.
* Matches zero or more times repeated.
+ Matches one or more times repeated.
? Match repeated zero times or once.
{n} matches repeated n times.
{n,} matches n or more times repeated.
{n, m} matches n to m times repeated.

\ W not match any letters, numbers, underscores, Chinese characters.
\ S matches any whitespace characters are not.
\ D matches any non-numeric characters.
\ B match word is not the beginning or end position.
[^ x] matches any character except x.
[^ aeiou] matches in addition to aeiou these letters any character.

Anti-Shake Faction/ Image Stabilizer / Optical Image Stabilizer

by Dou

Published on: December 19, 2011

Categories: Other

Tags:Anti-Shake, Image Stabilizer, Optical Image Stabilizer

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PANASONIC O.I.S (Optical Image Stabilizer), Canon IS (Image Stabilizer), Konica Minolta (AS) are well know series cameras with anti-shake faction. And for a new Lenovo 3000 N500 battery uses, when you bought a camera maybe you won’t take into account to so many parts of choosing a camera, and now let’s have a common sense understanding this faction.

Initial contact with digital cameras often have such confusion, that is taken out of the picture is not clear enough, always occur ghosting or blur. The reason, in addition to the occasional out of focus (ie, failure to properly focus the camera), the largely because due to low shutter speed. In general, conditions in hand, to record clear pictures of the reciprocal of the focal length shutter speed should reach even higher. Give a simple example: A75 Canon lens equivalent focal length is 35mm-105mm, then the wide angle end, the shutter speed should be at least 1 / 40 seconds to ensure that photographs are more clear, and in the telephoto end, the shutter speed should be to 1 / 125 second the job. And if the scene lighting conditions can not meet this requirement, then take a clear picture it is not so simple things. One can imagine, for those products, 10x optical zoom, image stabilization technology is the more necessary, because these products often reach 370MM telephoto above ThinkPad R51 battery, therefore, the shutter speed must be at 1 / 400 seconds considered qualified, otherwise, they can telescope Despair.

In fact, the actual photographer shooting hand in the film or CCD / CMOS sensor in the process of jitter is an objective reality, defense is Fangbu Zhu, and can only be reduced by a special body to shake hands as a photographer with to image blur. Image stabilization, so far, three major types: optical image stabilization, electronic image stabilization, and light sensor (CCD) image stabilization. Currently launched with optical image stabilization feature digital camera manufacturers are: Canon, Nikon, Olympus, Konica Minolta, Panasonic and Sigma.

The benefits of image stabilization, in a certain shutter the following, a very good anti-shake technology can solve the problem of hand shake, shake on a small DC is especially important for beginners so that they can get more clear picture. But at the same time, anti-shake technology will result in reduced image sharpness. After all, more than a floating lens in the lens. This is for photographers who require a higher, is relatively well accepted, so this is why all the anti-shake system will have a switch, the user can choose to cancel or open stabilization. With anti-shake system is very power-hungry, it is generally not open the image stabilization switch, but when it is open to use.

CCD stabilization
CCD anti-shake CCD principle is to be placed in a vertical and horizontal movementof the stent, the first detect whether there is jitter, and jitter sensor detects the direction, speed, amount of movement …

detection signal after processing, can be sufficient to calculate the CCD-shift offset the amount of jitter to achieve stabilization.
These two anti-shake is a similar principle, namely, by the mechanical movementinside the camera to compensate for staff to achieve the stabilization effect of jitter.Meanwhile, anti-shake technology will result in reduced image sharpness. After all,more than a floating lens in the lens. This is for photographers who require a higher,is relatively well accepted, so this is why anti-shake system will be a switch, the user can choose to cancel or open stabilization. With anti-shake system is very power-hungry, it is generally not open anti-shake switch, but rather to use when it is opened,if the real-time capture moving objects, it may be because more steps and missed opportunities.

Electronic Image Stabilization
Electronic image stabilization is actually a lower quality to compensate for jitter by thetechnology, which attempts to picture quality and a balance between jitter. Comparedwith optical image stabilization, the cost of this technology is much lower (in fact onlyfor ordinary digital camera’s internal software can do to make some adjustments), the effect is also poor. Currently on the market Casio and Fuji use of the electronic image stabilization technology.

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Did You Note Camera’s Shutter Speed?

by Dou

Published on: December 16, 2011

Categories: Camera and camera battery

Tags:Did You Note Camera's Shutter Speed?, shutter speed

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When you choose a Sony NP-FT1 battery camera before buying it, what will you mind? The pixel, CCD size, flash, lens, the appearance or the screen? But do you have ever note the shutter speed of a Sony NP-FT1 camera?

Digital camera shutter shutter speed is an important study parameters, the various types of digital camera’s shutter speed is completely different, so use a type of Nikon En-el3e battery digital camera to shoot the scene, we must first understand the shutter speed, because press the shutter when the shutter is only considered a start-up time, Nikon En-el3e shutter release and time to master in order to capture the vivid picture.

Usually most common digital camera shutter at 1 / 1000 seconds, basically to meet the majority of everyday shooting. Shutter not only depends on the “fast” depends on “slow” is the shutter delay, such as some digital cameras with up to 16 seconds shutter, but enough shooting night, but also increase the shutter is too long digital photos of the “noise “is the photo will appear mixed stripes. In addition, the mainstream of the digital camera in addition to automatic shooting modes, but also must have aperture priority mode, shutter priority mode.

Aperture priority mode is determined by the aperture size of the user, then the camera and exposure settings according to ambient light, etc. to calculate the amount of light to enter, according to this model more suitable for stationary objects. The shutter priority mode, that is, the shutter speed determined by the user, and then calculated according to the environment of digital cameras suitable aperture size. Therefore, the shutter priority mode is more suitable for shooting moving objects, in particular digital camera is very sensitive to shock, during exposure to even slightly move the camera will produce a blurred picture, long focal length in the practical situation is more obvious. In the purchase of a digital camera, you’d better buy the model with these types of models to ensure the capture effect.

The common B SLR camera shutter function, although you can be free to decide the length of exposure time, higher flexibility in shooting, but now most consumer digital cameras also can not support, such as providing up to 2 seconds, 8 seconds, 16 seconds, etc. the default value for a slower speed.

What are CCD?

by Dou

Published on: December 15, 2011

Categories: Camera and camera battery

Tags:CCD, CCD size, CMOS

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When we are talking about the size of CCD in fact we mean the size of the light-sensitive device, which includes CCD and CMOS. Photosensitive device size, CCD / CMOS area is larger, can capture more photons and the better photographic performance, lower signal to noise ratio. CCD / CMOS are used in digital camera as imaging sensor parts, the optical equivalent of the traditional camera film. Need a iPad 2 bluetooth keyboard case for your iPad 2 as a Christmas gifts, or a APPLE Powerbook g4 battery?

The surface of the CCD light-sensitive components is able to storage electric charge, and it arranged in a matrix manner. When the surface feel the light, the charge will be reflected in the components, all of the CCD light-sensitive components on the signals generated and make up a complete picture with this Sony NP-FD1.

You will find there are three layers of the CCD if it be decomposed. And the first layer is the “micro lenses”, the second layer is the “color separation filter”, the third layer “light-sensitive layer.”

Micro-lens
We know that the key to a digital camera imaging is in its photosensitive layer. In order to extend the CCD light rate, we must extend the light area of a single pixel. However, the image quality will be down easily by improving lighting rates. This layer of “micro lens” is equivalent to the photosensitive layer by adding a pair of glasses. Therefore, because the sensor is no longer sensitive area of open area and decided, instead of by the micro-lens surface area to decide.

Dichroic filter
The second layer of the CCD is the “color separation filter”, there are two separation methods, one RGB color separation method, the other is the complementary color CMYK color separation method Both methods have their advantages and disadvantages. First, let’s look at the concept of two kinds of separation method, RGB is RGB color separation method, almost all human beings can identify the color of glasses, are available through the red, green, and blue to form, three letters, respectively, while RGB is Red, Green, and Blue, which shows RGB color separation method is through these three channels of color adjustment is made. Besides CMYK, which is made with four-channel color, they are green (C), magenta (M), yellow (Y), black (K). In the printing industry, CMYK is more applicable, but less than its adjusted out of the RGB multi-color.

Primary-color CCD image quality advantage of sharp, true color, but the disadvantage is the noise problem. Therefore, we can note, the general color CCD digital camera, the ISO sensitivity probably does not exceed 400. In contrast, a more complementary color CCD color filter Y yellow, in color to distinguish the more carefully, but at the expense of some image resolution, and in the ISO value, the complementary color CCD can tolerate a higher sensitivity, which generally can be set at more than 800.
Photosensitive layer

CCD of the third layer is the “sensitive film,” This layer is mainly responsible for the light through the color filter layer into electrical signals and transmitted to the image signal processing chip, the image restore.

Traditional camera film size 35mm, 35mm for the diagonal length, 35mm film of the photosensitive area of 36 x 24mm. Conversion to digital cameras, close to the diagonal length of about 35mm of, CCD / CMOS size larger. SLR digital cameras, many have close to 35mm of CCD / CMOS size, such as Nikon D100, its CCD / CMOS size area is 23.7 x 15.6, compared to consumer digital camera to be much larger, and the Canon EOS-1Ds CMOS size is 36 x 24mm, 35mm reach the area, so imaging is relatively good.

Now the consumer digital camera market, there are 2 / 3 inch, 1/1.8 inch 1/2.7 inch 1/3.2 inch four. CCD / CMOS size larger photosensitive area is larger, the better imaging. 1/1.8 inch 3-megapixel camera effect is usually better than 1/2.7 inch 4.0 megapixel camera (which the light-sensitive area of only 55% of the former). The same size CCD / CMOS Pixels increase of course is a good thing, but this can lead to a single pixel of light-sensitive area of narrow, there may be underexposed. However, if the increase in CCD / CMOS pixel at the same time want to maintain the existing image quality, it must maintain at least a single pixel in the area do not reduce the increase on the basis of CCD / CMOS total area. Currently larger CCD / CMOS processing more difficult, the cost is very high. Therefore, CCD / CMOS digital camera a larger size, the price is higher. Photosensitive device the size of the digital camera directly affects the volume weight. Thin, lightweight digital camera is generally CCD / CMOS size is also small, and the more professional digital camera, CCD / CMOS size is also greater.

Now you should know that, when you judge if a camera is better than another, you should not just judge it by the pixel.

To Know More about Your Camera – Effective Pixels

by Dou

Published on: December 12, 2011

Categories: Camera and camera battery

Tags:Effective Pixels, largest pixel, pixels

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At first I will show you a example: The effective pixels of Sony T99C is 14.1 million, and the effective pixels of Nikon P7000 is 10.1 million, which is batter, can we compare them just by this value? Need a Nikon P7000 battery? or a Sony NP-BN1 battery?

From today, I’ll write some post about the basic knowledge about cameras, as help the common users learn more about cameras such as, the knowledge about CCD, Continuous Shooting, Battery Type, Memory Media, Effective Pixels, Shutter Speed, Stabilization Performance and so on. And today, this post is about the Effective Pixels.

I think we will be familiar with that, when we saw the camera adds, or when we step into the camera store, we will see or hear that, XXX camera is with Effective Pixels. of XXX, with XX times zoom and so on. Though the Effective Pixels can’t really reflect the camera’s performance, but of course it’s an important index.

Effective pixels is different from the largest pixel, the effective pixels means the real pixel value in photographic imaging. And the value of maximum pixel is the true pixel of the light-sensitive device (such as CCD), the data usually contains a non-imaging part of the light-sensitive device, and the value of effective pixel is converted under magnification zoom lens.

Digital images are normally stored in pixels as a unit, where each pixel is the smallest digital picture units. The higher pixel, the larger of the size of the picture will be. To increase a picture size, if not more light into the light-sensitive device, the only way is to increase the size of pixels, so that may affect the intensity and clarity of the image sharp. Therefore, in the case of the same pixel area, a digital camera to get the most out of the image pixels is the effective pixels.

Users to buy digital cameras, they usually see the businesses advertised “maximum pixels of XXX” and “effective pixels of XXX”, and then the user should choose? When choosing a digital camera, digital camera should focus on the effective pixels to see how much the value of effective pixels Image quality is the key to the decision.

But only pixels can’t show which camera is batter, and the other important index is the size of the light-sensitive device. And we will talk about it in the next post.

Tips To Reduce The Fee of Shipping

by Dou

Published on: December 8, 2011

Categories: Other

Tags:battery, canada, dell, online shopping, Tips To Reduce The Fee of Shipping, UK, usa

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Presently, there are many online stores are doing Christmas promotions, and here are a tips for you to save more when shopping from this replacement battery company which have do replacement battery online wholesale and retail for more than 10 years.

Fist, lets come to the Canada battery online store: We can see that, their promotions said that for orders over C$ 69.99 free shipping, and orders over C$79.66 free shipping and gifts for free.

Here are many deals that can enjoy this promotions such as:

Christmas Free Shipping & Gifts For Free

So ther are many free shipping deals:

Buy HP 510 Battery and HP 510 AC adapter together

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Buy Canon 60D battery Grip and Canon LP-e6 battery together

Buy a Nikon D80 battery Grip and a Nikon D80 battery together

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Buy Sony Vgp-bps22 battery

Buy Dell Vostro 1710 Battery and Dell Vostro 1710 AC adapter together

Buy a Dell Inspiron 1525 battery and Dell Inspiron 1525 AC adapter together

But when you meet promotions as such kind, would you fell that’s a pity if your orders are very close to the the critical price but a little lower? such as when you buy a7200mAh Dell Inspiron 6400 battery and a 90w Dell Inspiron 6400 AC adapter , and you will find the price is just C$ 69.94, so it’s so pity. Can we do something to avoid this pity?

7200mAh Dell Inspiron 6400 battery and AC adapter

Of course, some people will found that, the price 69.94 is a discount price as buy the dell 6400 battery and the dell 6400 AC adapter together as binding deals your order will reduce CS$ 2.00. So if you buy them with their original price (add the battery to cart first, and then add the adapter to cart), your order will be shipped for free. It seems you only pay the shipping for CA$ 2.00.

What’s more, there is also a better method to solve this problem. In this store there is a cheap and useful products which can help you to get free shipping, and this is also one of the gifts if your orders are over CA$79.99. This is the 4-in-One Memory Card Reader.

4-in-one card reader

Which in this store is just C$ 2.99. This means that, if you buy the DV9000 battery and AC adapter for C$69.63, you can pay more C$2.99 to get this card reader and free sipping together.

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