I have an Omega B-22 XL that I got about 25 years ago. Havent used it in about 15 years. Id like to print from 645 Medium format negatives. Previously I had only done 35mm. Here are the questions:

What size lens should I use ? I heard 75mm, is this right?

Are all lens mounting holes in all enlargers the same size? How do I know if a particular lens will fit the B22 lens mounting bracket?

In the B-22, the head (I believe) is not adjustable. A supplementary condenser is laid on top of the main condensers to do 35mm. To do 645, do I still use this condenser or should I remove it?

Is there an "enlarger grave yard" that I can parts from?

Any help would be greatly appreciated!

-- Craig Brown (csbrown@tiac.net), December 09, 1998

Answers

Either a 75mm or 80mm lens will work fine. Most lens mounting holes are standard size (39mm), but it is best to check before buying. If you are buying new you could call Calumet or B&H Photo and ask. I don't know the answers to your other questions so maybe someone else will step in and provide that information.

-- Darron Spohn (sspohn@concentric.net), December 10, 1998.

The extra condenser is for 35mm only. Remove it for 6x4.5.

-- Peter Hughes (leonine@redshift.com), December 11, 1998.