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Photo Forum / Film Photography / Darkroom / November 2005Omega C760 Super Chromega Dichroic a couple of questions
I picked one of these up for very little to upgrade a B66. Omega sells an adapter for it. Will I be able to use the B66 neg holders after the upgrade? Is the adapter just a plate? The head I got came with a big plate that I guess is needed for a different enlarger. It sure doesn't fit the B66 with the plate mounted. The yellow knob spins a bit past the point it should. Actually spins all the way around. But it does turn the filters. Any idea how easy/hard it would be to fix this. Of course it's not the cyan knob that's not working. Thanks Nick  Signature--------------------------------------- "Digital the new ice fishing" --------------------------------------- As I recall the head mounts to the B-66 chassis, so all the adaptation takes place above the film plane, you'll still use B-22/B-66/B-600 carriers, lens plates and lenses. And since the B-66 is a 6x6 unit it's unlikely you'd be able to enlarge 6x7 negatives without some kludging. On the other hand keep an eye out for a C-760 chassis and you'll have a fine 6x7 unit as well. As far as the color head repair, you can always use parts from the cyan mechanics to repair the yellow and then if you ever need cyan (I have on rare occasions) just use a 50CP cyan filter and balance with the other two colors. Signaturedarkroommike ---------- > > I picked one of these up for very little to upgrade a B66. Omega [quoted text clipped - 9 lines] > Thanks > Nick > As I recall the head mounts to the B-66 chassis, so all the adaptation takes > place above the film plane, you'll still use B-22/B-66/B-600 carriers, lens > plates and lenses. And since the B-66 is a 6x6 unit it's unlikely you'd be > able to enlarge 6x7 negatives without some kludging. On the other hand keep > an eye out for a C-760 chassis and you'll have a fine 6x7 unit as well. Only if the opening is too small for 6x7. I'd be suprised if it's that limited but maybe. Either way the main reason for getting this was for smaller negatives. My 4x5 enlarger only has 4x5 light boxes. It was a LOT cheaper to buy this then to even consider finding a smaller light box. I only wish it used the same bulbs my 4x5 head did. > As far as the color head repair, you can always use parts from the cyan > mechanics to repair the yellow and then if you ever need cyan (I have on > rare occasions) just use a 50CP cyan filter and balance with the other two > colors. I'm hoping I can just tighten something. The filters do move but the knob doesn't stop. Nick Signature--------------------------------------- "Digital the new ice fishing" --------------------------------------- Look for a small set screw on the knob, good luck and let us know how you make out. BTW the other problem with 6x7 on a B-66 chassis would be to find a carrier for that size that will fit the B-66. But 40 minutes with a Dremel could fix that if the throat of the film stage and bellows are adequate. Signaturedarkroommike ---------- > > As I recall the head mounts to the B-66 chassis, so all the adaptation takes > > place above the film plane, you'll still use B-22/B-66/B-600 carriers, lens [quoted text clipped - 17 lines] > > Nick > Look for a small set screw on the knob, good luck and let us know how you > make out. BTW the other problem with 6x7 on a B-66 chassis would be to find > a carrier for that size that will fit the B-66. But 40 minutes with a > Dremel could fix that if the throat of the film stage and bellows are > adequate. Hopefully it's just a set screw. I'll try and look at it this weekend. No rush I still need to order the adapter plate to fit it to the B66. Thanks Nick Signature--------------------------------------- "Digital the new ice fishing" --------------------------------------- |
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