Quote Originally Posted by Grandpaw View Post
Choosing a SD card for your Nikon D7000

I have been using SanDisk Class 10 Extreme 30mb cards in my D7000. I normally do not shoot in burst mode but the other day I was photographing some birds in flight and thought that I would try doing some bursts and was disappointed in the ability of my camera to keep up with a continuous burst. I was shooting Raw/ fine JPEG and would only get about 10 or 11 shots before it started slowing way down. I did some research on the SanDisk Extreme Pro class 10 cards that show 95mbs read and 45mbs write speed and thought that might help me out. I had read several reviews that said that this card would really make a difference so I purchased two of them to give them a try. Well I received them today and compared the two expecting that a noticeable increase in the ability for my camera to keep up.


This is the results of what I found

This is not scientific but only my attempt to find out the difference between the two cards.

SanDisk Extreme Class 10, 30mbs card results. 10 to 11 shots in a burst before slowing way down taking RAW/Fine JPEG and about 18seconds before the green light went out on my camera

SanDisk Extreme Pro Class 10, 95mbs read speed with 45mbs write speed results. 10 to 11 shots before slowing way down taking RAW/FINE JPEG and about 14 seconds before my green light went out on my camera

The Extreme Pro was about 4 seconds faster at being ready to take more pictures. I did not compare the two on how fast they downloaded pictures to my computer but I would expect the Pro to do a faster job. Jeff
Re: Tip #71 That is disappointing. I recently bought the San Disk pro (95 MB/sec read) thinking I would get much improved write speeds while taking bursts. Looks like I may have wasted money, as there was not much improvement in write speed for a large increase in cost.

Does anyone know if the write speed is limited only by the card, or is there an internal limit?