rdeloe
Well-known member
An overly-large image circle that doesn't have the proper measures to control light can be a problem. However, I've only ever encountered this problem once (and that's with long enlarger lenses that were never meant to be taking lenses). The Makro-Symmar 80/5.6 is a taking lens. It's not your only option at 80mm though. Are you actually shooting near 1:1 or higher magnifications? I ask because in your introduction you say you shoot table-top. The Apo-Digitar 80/4 is designed for table-top. You can use it at 1:1, but it won't be quite as good as a macro lens. (Although like a lot of lenses, if you reverse it, it's better at 1:1 than in the normal position.) It excels at tabletop distances. If you don't need 1:1 you could get one of those. Frankly I'd get a Componon-S 80/4 and save myself the money -- but that's me.Thanks for the links!
Makro-Symmar 80/5.6 has a 141mm image cirlce, would not this be too big for a cambo setup with a small MF ? I've read somewhere that APO Digitars were somehow modified to fit the MF and I'm kind of scared to get lenses which are not in Cambo's compatibility list...
And for the industrial mounts, do you know what lensplate should be used with Cambo Actus? NK #0 ?
Schneider's industrial mount system uses a special "BV" mount, which is designed for their UNIFOC system. Inexpensive adapters from Schneider, and from eBay sellers, convert to more common threads. For example, my Apo-Componon HM 60/4 has the Schneider adapter that converts to Leica thread mount (39mm x 1/26th" -- for enlargers). My Makro-Symmar 120/5.9 has a Chinese eBay adapter that converts to M42x1. The ACB-39 panel is for 39mm x 1/26th" enlarger lens thread mount. They don't seem to have a lenplate for M4x21. However, M42x1 thread lenses would fit in a Copal 1 hole, so you'd just have to use an M42x1 nut to lock them down. The silver ring on the lens at left is the Schneider product, while the black ring at right is generic eBay. They slip over the BV mount and then lock down with three set screws; you can see one set screw to the left of the word "Schneider" on the left-hand lens.
I completely understand your concern about using lenses that Cambo has not given its seal of approval. Keep in mind that just because Cambo hasn't added to its list, that doesn't mean it won't work. Sometimes it does mean that it won't work! However, other times it simply means that Cambo doesn't sell it, or hasn't tried it. In my experience, if the flange distance is appropriate, and if you can put it on a board, and if the image circle is large enough, then it should work.
If you have the money, it's certainly safer to stick to the list of approved lenses.