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All Forums Category: General Numismatic Forums Forum: Coin Photography, Image Editing, and Related Software

Impact Of Using Optically Non-Flat Glass For Axial Lighting?

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ContraJame
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 Posted 03/18/2012  5:16 pm Show Profile   Bookmark this topic Add ContraJame to your friends list Get a Link to this Message Number of Subscribers
I have access to an unending supply of annealed glass in 12" X 12" sheets. We send them out as samples for for approval. They're not optically flat. What will the impact be on my shots? Most of them are 1/4" annealed with no coating or something like SB60 which reduces the amount of light allowed through the glass from certain ranges of the spectrum.

In my head I can see the lack of flatness causing the light to be sent in all directions instead of it being sent directly at the coin. Would this cause more problems than it's worth?
SsuperDdave
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 Posted 03/18/2012  5:30 pm  Show Profile   Bookmark this reply Add SsuperDdave to your friends list Get a Link to this Reply
There's only one way to find out.

Axial lighting is funny - you can do some interesting things by slightly varying the angle of the glass.
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ContraJame
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 Posted 03/18/2012  5:40 pm  Show Profile   Bookmark this reply Add ContraJame to your friends list Get a Link to this Reply
Haha. Very true. I may have to borrow a few pieces for testing. I could easily go franksnestein with this if the results are interesting at all.
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SsuperDdave
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 Posted 03/18/2012  6:03 pm  Show Profile   Bookmark this reply Add SsuperDdave to your friends list Get a Link to this Reply

Quote:
I could easily go franksnestein with this if the results are interesting at all.


Heh. Interesting characterization, and appropriate if my experience is any indicator.
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All Forums Category: General Numismatic Forums Forum: Coin Photography, Image Editing, and Related Software



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