What I learned from Gollywop -- and what I wonder

Started Mar 26, 2013 | Discussions thread
texinwien
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Re: Both
In reply to Vlad S, Mar 26, 2013

Vlad S wrote:

As far as the full exposure is concerned, there is no doubt that maximizing the light lowers the noise, but the practical limitation is that it is quite rare that you will have a lot of headroom without clipping highlights somewhere. It works very well on a foggy day, but in contrasty conditions there may not much of a chance to increase exposure non-destructively.

I think it depends on what you're comparing against. That is, increase exposure from what baseline? I find there's often significant room to increase exposure non destructively as compared to the exposure I'd get were I to try to get the brightness I desired in the the OOC JPEG (w/ E-M5).

Most photographers make a conscious decision about clipping some highlights, at least the specular ones, but how far they are willing to go is a very personal choice. In the vast majority of cases covered in this forum, it was 1/3 to 2/3 of a stop above the camera meter.

Not to be argumentative, but I would like to know your source for the 'vast majority' statement. I'm seriously not trying to start something - I would like to know more about this, since it's not ringing a bell for me.

The reduction of noise with such a modest exposure increase can be barely noticeable. Here is an earlier discussion of what techniques work and how well, and the 2nd post in the thread links to some data and discussion of the problem.

I'm not sure how helpful the link is (or the post you mentioned with its 3 other links and no other information). That is, unless someone wants to dig through the haystack in order to find the needle - it appears you've linked perhaps 600 posts on the subject (4 discussions, each at 150 posts, although two of the sublinked discussions yield 'page not found' errors for me, at the moment).

Perhaps your statements are more geared to the m43 world, as a whole, but aren't as applicable to some specific models? In which case, I think it makes sense to state that specifically, if there is a significant variance between different m43 models such that ETTR might make more sense with some cameras than it would with others.

tex

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