How fast SD memory for movie clips?

[bblakes]

I'm on the verge of buying a Canon SD300 camera which can take 640 x 480, 30 fps video clips. I read that this will require faster than standard memory, but there are several 'speeds' available. I think it is the write speed that is important and the standard SD memory writes at 1.5 MB/s versus the 60x version that writes at 8 MB/s. There are some speeds in between to add to the confusion.

Any info would be appreciated.

B-

[LoveOfSelene]

I'm on the verge of buying a Canon SD300 camera which can take 640 x 480, 30 fps video clips. I read that this will require faster than standard memory, but there are several 'speeds' available. I think it is the write speed that is important and the standard SD memory writes at 1.5 MB/s versus the 60x version that writes at 8 MB/s. There are some speeds in between to add to the confusion.

Any info would be appreciated.

B-

Corect me anyone if im wrong. It does'nt matter how fast the SD card is. b/c the Canon SD300 can take a 3 min movie which will reside in the buffer then writen to the card.

~loveofselene

[David Metsky]

I've got the standard Sandisk 512 SD card (not the Ultra-II) and can take unlimited movies in 240x320 30fps and 480x640 30fps mode. The camera is restricted to 1 minute movies at 240x320 60fps, card memory speed will not change that, although some slower cards won't be able to do a full minute. I've read that some slower cards also can't keep up with the 480x640 mode, they cut out after 20+ seconds.

I don't believe there is a big enough buffer for 3 minutes of video, that would be extremely large on this camera. Video is roughly 2 meg per second, so 3 minutes would be 360 meg. I don't think it has that big a cache.

-dave-