Iii Compact Flash

Iii Compact Flash

Photography – Understanding Memory Cards

Even more confusing than the process of deciding which model of Digital Camera to buy is the process to select a memory card for your camera. This is compounded by the fact that often their first digital camera does not come with a memory card, and you will to buy separately.

Important features for a memory card, regardless of whether or not it is compatible with a given digital camera model are the file storage capacity (usually measured in gigabytes), and file transfer rate (the higher the better). As an example of the numbers involved, one-megapixel camera can store about 6 320 high-resolution JPEG images on a 1GB memory card. A 2GB memory card hold 640 images, and so on. But keep in mind that if you store images in RAW format image camera and the memory card will accept a number significantly lower. This is why high-capacity cards are favored memory when you can afford.

The variety of types of memory cards responsible and reflects the relative immaturity of the field of digital photography. Different companies are still fighting for market dominance, and the measure remains not set for memory cards.

However, there are currently two main types of memory cards that appear to be above others. These two types are known as Compact Flash (or CF) and Secure Digital (SD). For the rest of this article I will limit my analysis to these two types of cards. Most Digital Cameras support only one type of memory card, although the models high end Digital Slr like the Canon Eos-1Ds Mark III and Nikon D3 support CF and SD memory cards for maximum flexibility.

Compact Flash, which is now the kind of popular memory card for digital cameras (due to historically higher capacity and reliability), was introduced by SanDisk mid-nineties, so it has been around for a while. All major brands of digital cameras use CF memory cards in the majority of at least some, if not, their models. Produces SanDisk memory cards that can store up to 8 GB in file size.

For people they need to reel off a number of shots to get the one or two major (sports photographers here come to mind), high-capacity cards are very convenient. Transfer rates are specified within the incremental "1x" rate of 150 KB / s. A "12X" card, therefore, be able a maximum transfer rate of 1800 KB file / s. CF memory cards come in a physical size alone, even with two layers, designated as Type I and Type II, with the second, thicker. A Type II memory card does not fit into a slot of type I, so be sure to get the right type to select cards CF memory.

As a CF memory cards are relatively large (1.43 inches by 1.68 inches) that are less likely to be found in use with smaller point and shoot digital camera models. Instead, its physical size makes them more suitable for digital SLRs.

Secure Digital Memory card name derives from the fact it was originally introduced as a means of safely storing music files. The idea was that the protected music files a copyright would be allowed limited access to files stored on SD disks. But the concept was short-lived when the security protocol was cracked not long after its introduction. Due to the close connection to the music industry, the slots that accept SD cards also support other devices such as Bluetooth antenna, PDA's, mobile phones, and so on.

SD memory cards are used by all major digital camera brands, including Casio, Canon, Nikon, Pentax, Kodak, Panasonic and Konica Minolta.

Like the CF memory card, SD card transfer rate is measured in the same units of 150 KB / S. Because of the smaller physical size of SD memory cards (1.26 inches by 0.94 inches) of file storage capacity than has historically been much lower than for CF cards. Usually about 1 GB. However, SD is now targeted for high capacity market, and this has had to move to a new format file. Unfortunately this was done without a corresponding change in the physical dimensions of the card, which has meant that older cards are often inserted into new SD card slots that can not read, and vice versa, causing some confusion for consumers.

Once you have a memory card is full of images, you will want to transfer files to your computer, where you can be that the process with a software application such as Photoshop, or you can send them to another person for editing. One common way to transfer images from the memory card is to use a card reader. This is a small device, about the size of the iPod, which contains one or more memory card slots on one end, and a cable at the other end that plugs into the USB port of your computer. In this way, the reader card, simply becomes another port from which to read the data on your hard drive.

If your digital camera is not supplied with a card reader, it is almost certain which is accompanied by a cable that can be used to connect the USB port of your PC to the camera. In this way, the camera serves as the card reader device that otherwise mode used to read the memory card.

Other devices, such as photo printers, are likely to have memory card slots built on the right, so it can accept a memory card directly. Some devices are still able to receive the WiFi signal sent from a camera so that files can be transferred over the air.

Whatever the model of your digital camera may be, is always a good idea to consult the user manual first to see what their options for memory cards. Never make the assumption that a memory card is likely to work for your camera, simply because a sister model, or the immediate predecessor model, uses the same memory card. It is likely the case, but it's worth finding out before ordering new cards.

Also SanDisk can visit the site and check the memory card or compatible camera model. SanDisk lists all the major camera manufacturers and most current camera models, gives SanDisk cards that can be used with them.

To help you choose a suitable digital camera to get started, I developed an article for you about finding the right one for beginners The digital camera.

If you need a simple model of point and shoot digital SLR or a more complex model, find answers, and heavily discounted offers digital camera, http://www.bestdigitalcameradiscounts.com/

About the Author

Stephen Carter is a web developer and creator of the review script Review Foundry. He is also the creator of Best Digital Camera Discounts His interest in photography spans decades.

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