View single post by jk
 Posted: Fri Jul 20th, 2012 14:19
jk



Joined: Mon Apr 2nd, 2012
Location: Carthew, Cornwall, United Kingdom
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Robert wrote: In theory, but I find it's often necessary to compensate up to 1 stop. I would expect this to be one of those situations, ALWAYS check the histogram, at least for the first few exposures and as the light changes.

I generally take an exposure of grass or even my hand when I start a photo session to check the exposure.

I agree with Eric that I'm not sure that a polarizer will do much to get rid of haze.
It might d a little due to its polarisaton if the water in the air is causing so scatter.

If you use a Linear polarizer LPL then you need to look at the image and check histogram.
If you use a Circular polarizer CPL the camera metering should take care of the exposure.   That said if I use a polariser I usually dial out my EV compensation (normally -0.7 or -0.3EV) and set to 0 so effectively I am doing what Robert is suggesting.


BTW:  The Histogram from a JPG shows how the camera captured the image.  The histogram form a RAW file shows a the histogram as if a JPG was captured so the with RAW the histogram whilst being useful is not absolute.

 



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