Harold F. Bonacquist |
Using Second Memory Card As Backup My Nikon D7000 has two memory card slots, and permits me to use the second as a backup. Using SanDisk Extreme cards, and shooting raw/compressed do you think that this will appreciably reduce my maximum fps?
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Lynn R. Powers |
It may slow you down a little bit but not appreciably. What I want to know is why in the world you would have your RAW images compressed? Your ASP-C sensor needs all the help it can get and an unconpressed RAW will give you a better quality photo.
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Harold F. Bonacquist |
Compressed RAW isn't lossless???
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chrisbudny.com - Chris Budny Contact Chris Budny Chris Budny's Gallery |
My camera doesn't support two slots, so I can't say for certain---but my hunch would be no appreciable slowdown; in theory, the buffer only holds each image once - the camera hardware then writes to 2 chips, independently (I'm assuming they are written simultaneously, not serially.) Easy enough to test though---put in 1 chip, set up for high-speed shooting, fire away at a single composition (counting along with shutter fires if you can, until you notice the buffer lag.) Note the results, power down, reconfigure for 2 chips, and repeat the test... Also, if you're looking for 1 chip to serve as backup, why not configure for both chips to be written with full-size RAW?
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Lynn R. Powers |
I got a camera today that I am renting and the compressed RAW files are half of what the noncompressed files are. It is still pretty good but not not quite as good. Either way you will still be able to get considerably more information than you can get from JPEG. Going on a trip starting tomorrow and will be gone the remainder of the week to try the camera out. If I really like it I am going to cry because I have to send it back and I cannot afford to purchase even a used one.
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