Pls show examples where increasing brightness in post better than increasing ISO.

Started Oct 1, 2013 | Discussions thread
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David Rosser
David Rosser Veteran Member • Posts: 3,393
Re: Pls show examples where increasing brightness in post better than increasing ISO.

Andre Affleck wrote:

bobn2 wrote:

ultimitsu wrote:

bobn2 wrote:

So, mostly the metering is checking highlights. The easy technique is to set 2 1/2 or a bit more stops of EC and spot meter off the highlights (if your camera lets you use EC in M). On most camera there are a few ISO settings to be working with, and you know those pretty well anyway.

This sounds quite interesting, can you elaborate a bit on how it works? why 2.5 stops?

Your meter should be calibrated to centre when it gets 18% grey as the nominal exposure (10/ISO lux seconds).

I always thought it was 12.7% for digital meters. 18% was for film. That's why when you use an 18% grey card with digital you have to compensate a 1/2 stop.

Could that be your error?

12.7% as the standard pre-dates digital by many many years Thom Hogan explains it all in this article http://www.bythom.com/graycards.htmThe blame for 18% confusion can probably be placed at Ansel Adam's door.

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