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 Post subject: Re: ALEXANDRITE
PostPosted: Fri Sep 01, 2017 3:19 pm 
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Joined: Fri Feb 24, 2006 1:20 am
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Location: Southern California, U.S.A.
Interesting shots. Thanks for the tech data on lighting and camera settings. I do notice considerable background color difference in the two shots however. It would be even more noticeable in cropped side-by-side mages. Maybe exposure changes could alleviate that, as you mention.

Just as a side note, light bulbs hadn't been invented when Alexandrite was discovered, so candlelight (or equivalent) is probably the authentic light source for "evening" alex. A friend steered me to a guy who was selling candlelight-equivalent glass filters for a Maglite flashlight. I'm always reluctant to use it while showing stones because it tends to greatly oversaturate the red, even though it's probably more "authentic" than common incandescent lights.

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Rick Martin

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