Exposure basics, lesson two point one (& ISO)

Started Mar 19, 2013 | Discussions thread
bobn2
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Re: Motivation for ETTR
In reply to Chris Noble, Mar 21, 2013

Chris Noble wrote:

richarddd wrote:

In fact the original motivation for ETTR (giving more raw levels) was completely bogus.

The motivation for ETTR has always been to use the entire range of the sensor to record the image. No more and no less. Which is why the "optimal" exposure if you are shooting Raw (ETTR) is different from the "optimal" exposure if you are shooting JPEG (expose to minimize PP adjustments).

Take a look at the seminal article on ETTR: http://www.luminous-landscape.com/tutorials/expose-right.shtml He sure seems to spend a lot of time talking about available levels

Using the "available levels" and using the entire range is exactly the same concept expressed differently.

'fraid not.

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Bob

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