D800 内存卡速度# PhotoGear - 摄影器材
b*1
1 楼
碰巧看到的。连接在
http://forums.dpreview.com/forums/read.asp?forum=1021&message=4
Transfer speeds IS the difference. This will directly affect how quickly
your buffer fills up. Based on the technical guide, shooting uncompressed
NEF, the buffer can handle up to 16 shots of 75MB files. (I'm taking a wild
guess that the buffer is roughly 1GB based on this information) You can do
the math after that...
Shooting at 4fps will create 300MB/seconds in the buffer. Assuming you have
an SD or CF that writes at 90MB/s, it will take 3.33 seconds for that 1
second of 4 shots to be written to the card.
If you have a card that writes at 30MB/s, it will take 10 seconds for the 4
shots to be written to the card.
With a 30MB/s card your buffer will be filled in a little more than 3
seconds of continuous shooting.
With a 90MB/s card your buffer will be filled in a little more than 9
seconds of continuous shooting.
Math is a little loose but hopefully you get the point.
http://forums.dpreview.com/forums/read.asp?forum=1021&message=4
Transfer speeds IS the difference. This will directly affect how quickly
your buffer fills up. Based on the technical guide, shooting uncompressed
NEF, the buffer can handle up to 16 shots of 75MB files. (I'm taking a wild
guess that the buffer is roughly 1GB based on this information) You can do
the math after that...
Shooting at 4fps will create 300MB/seconds in the buffer. Assuming you have
an SD or CF that writes at 90MB/s, it will take 3.33 seconds for that 1
second of 4 shots to be written to the card.
If you have a card that writes at 30MB/s, it will take 10 seconds for the 4
shots to be written to the card.
With a 30MB/s card your buffer will be filled in a little more than 3
seconds of continuous shooting.
With a 90MB/s card your buffer will be filled in a little more than 9
seconds of continuous shooting.
Math is a little loose but hopefully you get the point.
