I just bought an Omega 4x5 XL enlarger that is like new. It is a complete package with lenses, contrast filters, timer etc.
I already had a 6x7 enlarger with a 50mm lens and a 90mm lens.
Now I have 2-50's, 80mm, 90mm, 105mm and a 135mm.
The 50 is for 35mm, I have been using the 90mm for my 6x7 negatives and the 135 is for my 4x5.
What about the 80 and 105? What is their strong suit?
Obviously I am trying to decide what to keep and what to sell/trade.
The 80 is good for 6x6 and 6x4.5, but you have them covered with the 90mm. The 105 is most often used for 6x9cm(2.25x3.25). I have a 90mm Wollensak that was designed t cover 6x9cm negatives, I use it for that and smaller medium format, plus smaller 35mm enlargments(3.5x5 and 5x7)
Congrats on the Omega. I bought an entire DR with a ProLab 4x5 a couple of years ago, love the machine.
If it is one of the Omegas that take the three lens turrets, just get a turret or two and you can switch between 6 lenses at will .
The longer lenses (e.g. 105mm for 6x7 or 6x4.5) work great with smaller enlargements - they give you more space for dodging or burning, and just about eliminate clearance issuers if you have a largish paper easel.
For 35mm enlargements, I usually use 50mm but if I have to make small prints, I use 80mm. My enlarger head doesn't come low enough to make 5x7 with 50mm. Likewise, for 645 negs, I usually use 80mm but 105mm when necessary.