Enrique, I use two of those heads, one with a hi-int tube on a Beseler MXT, the other on an old D2V chasis with the regular head, FWIW, I don't use the newer tube or any correction like a cc40y, i just use about half the contrast filters, and made ringarounds from a projection stepwedge (stouffer) to figure out approx. grades. You won't have any problems *adding* contrast, just trying to get below a grade 1.5-2 might be sorta tough...but then a cc40Y, can come handy there....I haven't used the new tube, but have heard many good things about it....you can also split filter print everything with a -1/5+ only and this works great most of the time. Unless you rig up some sort of homemade filter drawer, you'll have to use the filters under the lens.
The D2 cold head fits down inside the condenser housing for the D2 enlargers...I don't what year/model Omega you have (they only made like a half million of those enlargers...)but you'll need the large 4x5 condenser set, like the bottom portion of the D2V head, or the 4x5 set for the earlier non-variable condenser Omega D's....remove the 2 glass lenses from the metal "pot", as they call it, and place the coldlight inside, with the diffusion piece put in first....remove the tungsten lamp fixture, and run the cords out through the top....the "pot" fits back on to the enlarger chasis....Sorry if this sounds confusing, but it's actually just drops right in place--providing you have the actual components of the condenser head..if not, you may be able to purchase some of this stuff from Aristo, or you may have to dig through the bargain bins....hope this helps, as always:Opinions expressed in this message may not represent the policy of my agency.
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