Native ISO of a CMOS sensor.


K30git

Link Posted 18/03/2014 - 21:22
http://www.youtube.com/watch?v=lGBkgvF23qQ

Therein

"we are using 200 here because thats the native ISO of a CMOS sensor"

"that means you are going to capture more highlight detail than at a 100 ISO"

"common misconception that the lowest ISO is always the best"

Oops I've been labouring under the delusion that the lowest ISO is the "best"

Is this guy right, have I been abusing my K30?
Last Edited by K30git on 18/03/2014 - 21:28

Smeggypants

Link Posted 18/03/2014 - 22:08
K30git wrote:
http://www.youtube.com/watch?v=lGBkgvF23qQ

Therein

"we are using 200 here because thats the native ISO of a CMOS sensor"

"that means you are going to capture more highlight detail than at a 100 ISO"

"common misconception that the lowest ISO is always the best"

Oops I've been labouring under the delusion that the lowest ISO is the "best"

Is this guy right, have I been abusing my K30?

not sure what he means by that. if you don't clip the signal then you've got the highlights even at 100ISO
[i]Bodies: 1x K-5IIs, 2x K-5, Sony TX-5, Nokia 808
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283

Offertonhatter

Link Posted 18/03/2014 - 22:20
I think he may be confused. 200ISO was the native ISO for CCD sensors, still is really. I am sure that the native ISO for CMOS is 100ISO.

Mind you in reality, it all depends on the make and model of the camera.
For instance the Native ISO for Canon is 100ISO, Nikon around 160ISO. Leica Monochrom, 320ISO
My K20D has a native ISO of 200, yet my K-5 is 100.

So, if you have been shooting your K30 it 100ISO, you won't have a problem.
Some Cameras

K30git

Link Posted 19/03/2014 - 14:07
Does seem somewhat erroneous from an informed commentator. Surely if you conducted a pole herein asking people if the light was available would they shoot at 100 or 200 the vast majority would say 100.....

johnriley

Link Posted 19/03/2014 - 14:09
Quote:
Surely if you conducted a pole herein asking people if the light was available would they shoot at 100 or 200 the vast majority would say 100.....

You'd need a poll to establish that, but I routinely use ISO 400 with cameras from the K-5 onwards.
Best regards, John

gwing

Link Posted 19/03/2014 - 14:19
K30git wrote:
http://www.youtube.com/watch?v=lGBkgvF23qQ

Therein

"we are using 200 here because thats the native ISO of a CMOS sensor"

"that means you are going to capture more highlight detail than at a 100 ISO"

"common misconception that the lowest ISO is always the best"

Oops I've been labouring under the delusion that the lowest ISO is the "best"

Is this guy right, have I been abusing my K30?

Don't worry about it. You won't do any harm by shooting below the native ISO, it is just that there isn't anything to be gained either.

But I wouldn't assume that the native ISO of your sensor actually is 200 just because some guy has made genaralisations.
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