Nikon’s D200 High Speed Performance Examined By Ken Rockwell
Ken Rockwell’s Nikon D200 is fast, smooth, and quiet. Ken points out that the D200 uses two very different kinds of memory for storing images.
We’re all familiar with the CF cards used to store hundreds of images. These aren’t that fast and card makers rate them for write speed. The D200 uses these for recording your images.
The D200, like all professional digital cameras, has a second very high speed internal cache memory called a buffer. You never touch this. This buffer memory stores 25 frames of JPGs, 21 frames of raw or 19 frames of raw + JPG.
The buffer memory is fast enough to store all these frames at the full 5FPS rate, or faster.
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More: Gadgets, Digital Cameras, Nikon