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New home made UV exposure unit up and running.

jjames100

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just finished my new 20x24 diy UV exposure unit. Going to try it out tonight with some digital negs and van dyke emulsion. Was using unit at school until covid. Now I can start printing again. Yeeehaw.
 

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wiltw

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For us unenlightened (pun intended) what is a UV source used for photographically?
 

BrianShaw

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wiltw said:
For us unenlightened (pun intended) what is a UV source used for photographically?
Click to expand...
Most of the antique/alternative photographic printing processes need UV exposure, such as cyanotype, albumen, gum bichromate, platinum/palladium, etc. Some processes can be exposed by sunlight (natural UV) but exposure in a device like this is more controlled and repeatable.
 
Last edited:

fgorga

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wiltw said:
For us unenlightened (pun intended) what is a UV source used for photographically?
Click to expand...

For making contact prints using the so called 'alternative processes'... such as cyanotype, van Dyke Brown, salted paper and platinum/palladium to name a few.

A good source for more information... https://www.alternativephotography.com/
 
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