wilderness wrote:
I was reading a photography blog of professional photographer ( and one of my favorites) Tom Till. In it he said in spite of what people think, that both Canon and Nikon have less noise at ISO 200 than at 100. I believe the term he used was this was their native ISO. Does anyone out there know about this?
Wild, I think Mr. Till is wrong(maybe).
BUT we could be talking apples and oranges.
"Natve ISO" is a cinematic term refuring to a specific ISO in cinematic cameras, referring to where the ISO and the dynamic range of the camera and where they meet(sort of) to give the best and cleanest picture quality.
In still cameras we usually use the term loosely if not incorrectly to mean the normal ISO range or the lowest normal ISO, hence Native. And at least for Canons, real Natve ISO's are not known, at least not to users.
That said, in a Canon camera the least noisy ISO is the lowest normal range iso.
There is no need for us to test this stuff as there are those that test in controlled conditions and we need to simply apply the results to our shooting styles.
At " The Digital Picture", Bryan tests every Canon Camera under controlled conditions at every normal ISO setting a camera has. In ALL of these tests ISO 200 ALWAYS has more noise than 100.
BUT, that is not necessarily where the camera will produce the best shot, as that may be where dynamic range and ISO meld to produce a combination of low noise and colors/shadows etc. For most of and Mr. Till's given shots, that may well be at 200.
Keep in mind that on any given shoot there is an ideal ISO. 100 too low and we need to raise the brightness in post, affecting the noise or 100 to high and we need to lower it.
Normally, Canons need to be at the lowest normal ISO to produce the least noise.
Not all pros know everything, they learn just as we do. And some are known loose Canons, just look a KR!! :lol:
SS