I have a 14" RD Artar that I am considering mounting into a shutter. Looks like the cost of the shutter, cleaning, and mounting will probably be $600+ though. This doesn't include the cost of lens caps (might need custom) and an adapter to allow filters to be used. By the time everything is done I could have $1000 into this, and there's no way I could recoup that cost if I decided to sell it.

Before I go through with that, I would like to look at my options. Anyone have a suggestion for a small & lightweight lens, with reasonable room for movements on 4x5?

Not really interested in a 300mm right now - too close to my 240mm. I don't think I could focus a 450mm either.