Max ISO setting 60d/7d

Justin Molush · January 23rd, 2013, 08:02 PM

"Native" ISOs in the camera are native gain steps that are neither "pushed" nor "pulled" from other ISO levels. Now, while I am not sure entirely about which iso levels do what, you might find that ISO 250 being more noisy than 320 if 250 is simply native ISO160 'pushed' to 250 (1/2 of a stop, so imagine pushing ISO160 1/2 of a stop in post).

Now, I am using these numbers just to explain how native ISO are cleaner than non-natives, but I dont know if 250 is indeed a pushed 160 or a pulled 320. The post-native ISO push/pull to simulate intermediate ISOs is what causes some to be cleaner or noisier than others. Would it be cleaner to shoot 160 and push in post rather than 250 or the like, I don't know, never tested. I guess it heavily depends on how the camera handles things internally with intermediate ISOs.

January 23rd, 2013, 08:02 PM	#16
Justin Molush Major Player Join Date: Jul 2010 Location: Montreal Posts: 388	Re: Max ISO setting 60d/7d "Native" ISOs in the camera are native gain steps that are neither "pushed" nor "pulled" from other ISO levels. Now, while I am not sure entirely about which iso levels do what, you might find that ISO 250 being more noisy than 320 if 250 is simply native ISO160 'pushed' to 250 (1/2 of a stop, so imagine pushing ISO160 1/2 of a stop in post). Now, I am using these numbers just to explain how native ISO are cleaner than non-natives, but I dont know if 250 is indeed a pushed 160 or a pulled 320. The post-native ISO push/pull to simulate intermediate ISOs is what causes some to be cleaner or noisier than others. Would it be cleaner to shoot 160 and push in post rather than 250 or the like, I don't know, never tested. I guess it heavily depends on how the camera handles things internally with intermediate ISOs. __________________ Automotive Multimedia