MT Shooter wrote:
Check your manual to see what Nikon recommends as a minimum card speed for that model, I think a Class 4 is all that's required to satisfy all your cameras speed needs. A faster card will not write any faster from your buffer as the write speed is limited to the cameras capability and a faster card is akin to putting a 200mph speedometer in a Pinto, you can do it, but why?
Maybe because the Class 10 in high demand with big sales now sells for about the same or less than the Class 4 that has declining sales from lack of demand? When I can buy a Class 10 8GB SDHD for $9 or a 16GB SDHD for $15 why would I even look at a Class 4? Just for the sake of ultimate compatibility with a bigger, better, faster, higher MP camera later, I wouldn't go with Class 4.
Also, just because a Class 4 is all that's required doesn't mean a Class 10 doesn't read and write faster. I see a significant write speed change on a little Canon P&S that I have when using a higher class card although I haven't compared them on my dSLR.