Do Lens transmit UV to expose sensitized film gelatin for collotype and how to do

Mustafa Umut Sarac

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Joined
Oct 29, 2006
Messages
4,862
Location
İstanbul
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35mm
  • Do Common Lens transmit enough UV to expose common film sensitized gelatin for collotype ?
  • Do UV transmit ability varies from lens to lens ?
  • I read normal lens transmit long uv, does it work ?
  • Can I sensitize normal may be 120 bw film roll complete gelatin for uv transmitted from ordinary lens ?
    How to do ? I remember one dichromate subsitute sold at apug , does it work ?

I dont have quartz and not thinking pinhole.

Umut
 

Nodda Duma

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Joined
Jan 22, 2013
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2,685
Location
Batesville, Arkansas
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Multi Format
Optical glass transmits 350-400 fine but the images may be softer due to less efficient aberration correction and slight focus shift.

Below that, your choices are more limited.
 
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