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View Full Version : what speed is needed for 30fps 640x480



kkdeep
10-03-2005, 08:15 AM
Hi,
I just ordered a camera which supports video mode of 640x480 at 30fps.

This means effctive write speed required is

640x480 -> number of pixels in 1 frame
x 30 -> 30 frames
x 3 -> bytes per pixel (1 byte for each RGB)

is this calulation correct?

This comes out to be 27648000 bytes per second

which all card supports this speed?.
Thanks for ur time

Kuldeep

David Metsky
10-03-2005, 05:20 PM
It depends on the camera, as they use different movie compression formats to write out the files. Some use MOV, AVI, or MPEG so there are different amounts of data being pushed.

I have a Canon SD300 and I'm using a standard SanDisk 512M card that keeps up with the camera at 640x480 at 30fps.

-dave-

kkdeep
10-03-2005, 11:30 PM
Thanks for replying
I have Nikon coolpix 5900. any idea about which SD card should i go for


Kuldeep

Fick Sucker
10-11-2005, 07:43 PM
Thanks for replying
I have Nikon coolpix 5900. any idea about which SD card should i go for


Kuldeep

I need the exact same question answered... for Memmory Stick Pro and a Sony DSC s60... Let me know if you think this logic is correct.

It can fit 12 minutes & 20 second on 1gb @ highest settings... so 1000MB/740 seconds... 1.35 MB/S... Is that right?? So almost any pro card should do.