Poor man's universal iris=two toilet bowl to tank gasket flange from the True-Value hardware store. Sandwich the lens board in between the gaskets will accommodate a variety of size barrels so long as it clears the light trap inside the front standard.
"I would feel more optimistic about a bright future for man if he spent less time proving that he can outwit Nature and more time tasting her sweetness and respecting her seniority"---EB White
Fascinating. Any pics?Originally Posted by John Kasaian
len, can you show your iris with the blades closed? i want to see if they are silver or black blades. thanks
Just curious, what difference does it make?
FWIW mine, which opens to a bit over 3" has silver blades.
Philip,
The blades are black.
Hope that help,
Len
it does.
alot of people gave me different advice about cleaning rust off the iris blades and the gears.
long story short. it works now pretty well but all the paint came off the iris so it is now the raw metal.
i want to figure out if i should paint it black or just leave it alone.
cheers
phil
The "paint" would need to be VERY thin or it would be very hard to open it fully.
Painting the leaves is fruitless and unnecessary. The ever-so-little shiny surface on the film side will have zero effect.
thanks for the info. i won't paint it. cheers.
Paint would never work anyhow because of the friction. It would scrape the paint from all contact surfaces on the blades. All four of my iris lens chucks have blued/blackened blades chemically darkened but certainly NO paint. Now the frames on all of mine were from factory painted black but not the blades .
If you have the skill to disassemble the iris blades & reassemble, you certainly cold try a cold blue treatment on the blades and I bet that would work well. It certainly will do no harm. You would still get wear in the friction areas but not the scraping off of paint which would wind up on the glass and would look crappy fast.
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