pc1668

原帖由 lsman1 於 2009-11-13 03:32 發表
One thing mention is a few review site is the diffraction factor.
(DLA)
People calculate on 7D, you may see a softer image at f/7
and 5dmk2 about f/10

http://www.the-digital-picture.com/Reviews/Canon ...

F7.1係我常用的光圈，如果係真的話，咁7D弱左啲喎，唔啱我啦

rankinelo

原帖由 pc1668 於 2009-11-13 09:38 發表


F7.1係我常用的光圈，如果係真的話，咁7D弱左啲喎，唔啱我啦

This is an expected issue. With a 7D sensor that is more densely packed (than 5DII) in the center of the lens, diffraction from the lens is easier to be captured than that in 5DII.

lsman1

That's why its a sports/bird camera...
and look like need to dial up the sharpness according to the digital-picture review.

Not a landscaping (-> 5Dmark II) camera.

inzite

原帖由 lsman1 於 2009-11-12 05:38 發表
still not able to get use to the AF yet
set to AF zone of middle and just point and shot. most are not in focus. (if its 40D 100% of them will be un-useful for sure)... so may be the lens or my skill ...

imo, nikon's top bodies hold tracking much better than canon's top bodies.
some from today :P

front side lit

totally back lit

lsman1

I think with skill, each with do just fine....

inzite

原帖由 lsman1 於 2009-11-14 09:49 發表
I think with skill, each with do just fine....

thats wat i conclude after comparing 1d3 and d3

pc1668

原帖由 inzite 於 2009-11-14 11:10 發表


thats wat i conclude after comparing 1d3 and d3

Nikon's 51 points dynamic 3D tracking is stronger than Canon's 45 points AI SERVO.

inzite

原帖由 pc1668 於 2009-11-14 12:13 發表


Nikon's 51 points dynamic 3D tracking is stronger than Canon's 45 points AI SERVO.

thats what i said above..

chun__:)

d90 都track得幾準的. 我以前用450 好難先中焦.

新遺失戰艦

原帖由 inzite 於 2009-11-14 11:10 發表

thats wat i conclude after comparing 1d3 and d3

當個人技術相近, 相機既機能就變成決定性影響
Canon 真係要稔稔計

[ 本帖最後由 新遺失戰艦 於 2009-11-14 15:05 編輯 ]