I believe they do, but will check for you. Long time ago I installed the AN glass on the Valoy II, I forgot most. The glass itself may fit, but I am not sure if the 1C's spacer ring fits. The 1C head I never used on the Valoy II, but I have seen pictures of this . . . it may be a couple of days before I get to checking it.
Do you have the Valoy II already? If not you could consider getting the later version with the AN condensor.
Chip, ok this took a little longer: I checked with a black Valoy II.
The IC top half of the head fits the Valoy II fine. You'd have the advantage of the more sophisticated up-and-down mechanism. Otherwise there's not much difference.
The IC AN glass fits the Valoy II condensor, but there's the problem that the enlarger head gets tilted because of the added thickness of the AN glass.
I attach some pictures.
Sometimes, for either the Valoy II or the Focomat IC, I prefer to not use the AN condensor or the AN glass. For that I have cut from thin black pvc sheet something that fixes on the negative holder (sliding over the two pins). I cut out a rectangular a little larger than the negative. The negative goes in between holder and this cut-out thing and won't touch the glass of the condensor . . . no Newton rings . . .
Shim the knurled screw, or the head? I am not sure what to shim is?
Anyway, yesterday I ran out of time. But I did find the 3mm spacer ring from a Focomat 1C. This ring is used to raise the condensor the needed 3mm when using the AN glass. Today I try if this ring can be placed under the bajonet of the Valoy II condensor. This condensor is held down by a spring, like with the Focomat 1C. If the Valoy II condensor can be pushed up the 3mm, then things should be ok. With the Valoy II you can take out the condensor from below: push it up, turn the bajonet and out it drops. However, to try install this ring, you need to open up the system from above . . .
Leitz had different ways to eliminate Newton rings. For the Focomat 1C it was the optional AN glass in a black metal ring and it slides over the condensor, then pressing down on the negative. Beautiful system! For the Valoy it was first a thin metal piece with a cut-out rectangle and that went over the condensor. I have it, but don't like it very much as it is very tight on the condensor and difficult to take off, not good for cleaning the condensor. Then with the two last versions of the Valoy II (blue-grey and light grey) Leitz made the frosted condensor which means it is anti Newton treated. You tell the difference by the glass not being totally clear. Quite a nice system.
Thanks for all your effort, Hilo, but what problem remained? Is it top-heavy? Or is the head at an angle? I just want to use the 1c head for the filter drawer & bulb adjustment features. I can do w/o the filter drawer, but I guess I can stick an old Valoy head on top of the 2 to get bulb adjustment (the 2 takes short-neck bulbs that are no longer made)? Chip
The head is still tilted and I don't see a way around it. It will cause wrong illumination and probably not 100 % flat pressing down of the negative.
If I were you I would solve the problem of the Newton rings differently. You can send me an email if you want to know details of what I described earlier
Chip, ok good news, I got it right today. This morning I could finally concentrate on it. Yesterday I placed the 3mm spacer ring in the wrong place.
Today I simply put it under the bayonet flaps of the condenser and therefore raised the condenser unit (including holder, spring, flat ring and the condenser) 3 mm. That being the thickness of the 1C AN glass. I don't think Leitz ever intended it for this purpose with the Valoy II, but it works perfectly. The only lost function is you can't remove the condenser anymore downwards. If you want to give it a good clean, you will have to remove the lower half of the head (4 screws) and the condenser holder (4 screws). All quite easy.
Sorry for the poor pictures, but I think you will understand. All you need to do is find the 3mm spacer ring.
John, the condenser mount in the rear hinges on a long metal pin, that would have to be removed. You'd lose the beautiful function of the enlarger head flipping backwards . . .
Thank you, Hilo, very much. You're a real trooper! Yes, I have the 3mm spacer. BTW, I also have an ancient Valoy that has double-condensers & a frosted glass diffusing disc that fits on top of the condensers! Bet you never heard of that. Gives a clearer picture than a regular Valoy, or maybe even than a 1c! Thanks again, Chip
I may have seen that early Valoy with the double condensers and the disc. Does it have quite a long column? By clearer picture you mean a clearer projection? Not something more clear in the print? I have some short-neck 150 opal lamps for the Valoy II and these lamps make working with the Valoy II very easy.
The Computar I have (50/2.8) gave me small problems to install in the Valoy II. The usual Leitz 17675 ring does not screw on, the lens barrel being too large. Maybe an older Leitz ring will work as some of those do not have the inner screw thread. I found another brand adapter ring which works fine and brings the Computar down just enough to see the aperture numbers. It will all depend on the build of your Computar. I am curious to hear what you find working with that 1.9 !
Hi, Hilo. The double-condensers seem to give a sharper print, but the tonality may not be as long-scale as a single-condenser. The 1.9 looks something like an El-Nikkor (which I hate), but much ritzier and "legendary"-looking (I can't quite find words here for such a visual experience), and, it appears, is even sharper than a Focotar-2. The 1.9 cost $625 new back when the Focotar cost $300! It is a big, heavy lens w/a ton of glass, and built like it was part of a satellite. It has a rotating element on the front to adjust for magnification. I find Focotars too snooty for my taste! Chip
Perhaps this helps: I found an extension ring that makes it possible to use the Computar 50/2.8 with the Focomat IC. It was sold as a Leitz B extension ring for Focomat and Reprovit. It measures only 7 millimeters, or 11 millimeters with the screw thread.
I could not use the Computar because the normal Focomat extension ring 17675 doesn't work with this lens. This 7 millimeter ring works fine, even the automatic focus stays ok. Perhaps your 50/1.9 has a similar barrel?