Filters in Contact Printing

Simplicius

Member
Joined
Feb 21, 2008
Messages
225
Location
Dublin Ireland
Format
Analog
I an wondering what others people thoughts on this are, I use a standard Paterson contact printed for both 35mm and MF.

I generally print contact sheets with the contrast set to 2 on the multi-grade head or if using hand held filters I hold a 2 filter under lens. my logic is i tend to print 80% of my stuff at this grade.

Does this make a difference through the glass ? am i just wasting energy ? does anyone else do this? thoughts please
 

JBrunner

Moderator
Moderator
Joined
Dec 14, 2005
Messages
7,429
Location
PNdub
Format
Medium Format

Yes, you are getting the contrast grade you are printing to through the glass. I vary contrast with VC paper all the time while contact printing 8x10. If the glass has a bit of a tint I suppose it could have some effect by slightly shifting the wavelength with VC paper, but it would be very minor.
 
Last edited by a moderator:

fschifano

Member
Joined
May 12, 2003
Messages
3,196
Location
Valley Strea
Format
Multi Format

Not enough to make a difference. I see maybe about 1/3 stop of light loss from the glass, but I'm using plain old window glass without any AR coating.
 
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