Why Exposing to the Right (ETTR) is BAD!

Started Mar 30, 2013 | Discussions thread
schmegg
Senior MemberPosts: 4,980
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Re: Why Exposing to the Right (ETTR) is BAD!
In reply to gwlaw99, Apr 1, 2013

gwlaw99 wrote:

Trying to catch up here without reading the entire thread.  Can someone explain to me how ISO crept into the discussion when ISO does not effect exposure?  Is the conversation now on whether it is better to use a higher ISO or increase brightness in post processing?

Hehe!

Indeed!

ISO should only enter the discussion at all if you intend to change it to achieve the exposure shift. And, even then, given all the other factors in play and the amount you are likely to be shifting the metered solution, it is a minor consideration and depends also on the particular camera you are using. (something I'm guessing some here don't wish to consider, or simply don't understand).

ETTR is all about maximising the saturation of the sensor for a given scene. ISO has nothing at all do to with this. The sensor - no matter which one - has a finite saturation point, and getting as close to possible to that without going past it is the goal of ETTR. The ISO setting is pretty much irrelevant TBH, apart from the fact that certain ISO setting may introduce more, or less, noise depending upon the particular camera.

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