[cckd2]

Does D300 use SD card to record the memory? or it uses the file?
Becasue at the description it said it is : CF (Type I/II), 支援 UDMA
What does it mean? CF??? UDMA??
Does anyone have any comment on this two camera? adv and disadvantages, please.

As I am considering to buy any of those

Thank you for your comment!!

[cheuklun]

I have D90 for my own use and D300 for company use.

D300 uses CF memory card, while D90 uses SDHC memory card.

In terms of picture quality, not much difference. I dare to say very similar and even the same picture quality.

In terms of ISO control, not much difference. Both very good at high ISO from 1600-6400.

In terms of body build, D300 wins.

In terms of focus sysyem, D300 wins - 51 focus points VS 11 focus points. Much faster than D90 especially in dim environment.

That's my own experience and comment, please correct if any masters have other opinions.