Hope this is the right place to ask this...I was lucky (?) enough to find a nice Ilex # Universal Shutter (no iris) this past weekend for $20. Seemed like a good deal, and was hoping it might fit a barrel lens I have..it did not. So, question for those in the know, which lens would be a good fit for this shutter? Since it does not have the iris, would guess that means it needs to be a barrel lens with it's own iris settings, but hopefully can find something that will fit without expensive modification (like the lens I have now). Thanks in advance... Mike would like to use this on the 8x10...seems like that might make a difference on what is recommended.