penelope 0 #1 December 14, 2009 I'm wondering which SD memory card to use with my new Rebel XSi. I know it's better to get the faster read/write speeds for speed-shooting, but I can't remember what speed CF card I used to use with the Rebel XT (and I can't check since they got stolen). It looks like the SanDisk SDHC cards aren't available in as fast speeds as the CF cards are right now. The "Extreme" model says it does 30MB/sec. I'm a little confused by all the different names I'm seeing when I search different websites ("Extreme III", "Extreme IV", or just "Extreme"). Is 30 MB/sec plenty? Or does anyone know of faster SD cards available? I've seen CF cards up to 90 MB/sec... Thanks for any input... Find me on Facebook! Quote Share this post Link to post Share on other sites
DSE 3 #2 December 14, 2009 For writing to a card, speed isn't terribly important. Reading from a card, you want the fastest that is reasonably affordable. Class 2: 2 MBps - 13x Class 4: 4 MBps - 26x Class 6: 6 MBps - 40x Quote Share this post Link to post Share on other sites
pilotdave 0 #3 December 14, 2009 This might help: http://www.robgalbraith.com/bins/camera_multi_page.asp?cid=6007-9424. Dave Quote Share this post Link to post Share on other sites
penelope 0 #4 December 14, 2009 Thanks. Any idea what the average jpeg file size at 12MP would be? Find me on Facebook! Quote Share this post Link to post Share on other sites
penelope 0 #5 December 14, 2009 Oh, nevermind, that answer was easy to find when I wasn't trying... :) Find me on Facebook! Quote Share this post Link to post Share on other sites
antonija 0 #6 December 14, 2009 QuoteFor writing to a card, speed isn't terribly important. Really? I'm asking because when I used my Minolta 7D to shoot bursts it would do quite fast bursts until buffer was full. Then camera had to write all that stuff to CF card and burst rate dropped a lot (by a factor of 5 or so). I always thought that was because buffer read/write speeds were faster than CF read/write speeds...I understand the need for conformity. Without a concise set of rules to follow we would probably all have to resort to common sense. -David Thorne Quote Share this post Link to post Share on other sites
gearless_chris 1 #7 December 14, 2009 I noticed that my Rebel XT hits the buffer faster with an Extreme 2 than it did with an Extreme 4. I wish I would've known about the faster downloads too, I might have went with another Extreme 4 after my first one died."If it wasn't easy stupid people couldn't do it", Duane. My momma said I could be anything I wanted when I grew up, so I became an a$$hole. Quote Share this post Link to post Share on other sites
