[h0001244]

Chings, have you compared these


take 2 RAW photos
1. 1600 0EV
2. 800 -1EV
same shutter
same aperture
same lighting
same NR (in this case no NR)
boost 2nd photo in DPP by 1 step to obtain same brightness
compare noise (lumun noise & chromo noise) of both photos


I tried, in 100% view, almost same quality for my 20D. How's ur ? ?

[william_lau]

據我所知推番光的話暗位一定係會多左noise，否則的話，在低光拍攝時我under晒再後期推番光佢仲要靚仔過高iso拍的我咪好著數？

[h0001244]

william_lau 有道理 .

我試過ISO400 -2EV 後推2step 就真係差好遠了

1600 0EV 跟 800 -1EV 差不多可能係因為 Iso 1600 noise 真係大D
而 iso800 noise較低， 後推就打個和 ...... 巧合

[GBAmon]

I choose ISO1600 oev to get higher shutter.

[manmichael]

if almost same quality, i use iso1600

[fallbackskiing]

I think ISO -1EV have same shutter speed as ISO1600, am I corrected?