Punkinhed7
2-May-2014, 17:28
Picked up this lens off that big auction site not really knowing what I was getting --bad pictures, but it looked interesting. The lens is mounted in a 2.75-3' square lens board and has a diameter of ~1 inch.
The barrel is marked " Eastman Kodak CO. Rochester N.Y. USA" then has an aperture scale from 4 - 64. No visible markings on the front element and back element says it's a Bausch & Lomb Optical Rapid Rectilinear. Has 15 blade iris and focal length appears to be ~6 inches. No problem covering 4x5 at infinity.
I'm assuming it's a B&L-made RR from an Old Kodak but the barrel mount kinda throws me and I'm not finding much on f/4 RRs.
So, if anyone has any ideas re: the original camera this may have been on (or enlarger?), whether that might have used this lens board, if it's actually the front/rear elements from two different lenses, or any other explanations, etc., I'd love to hear em.
On another note, the thing is pretty dirty with what I'm pretty sure is some (quite a bit) of fungus and the blades are pretty grimy (though still adjust smoothly). I'm planning to try and clean it up a bit but am a little unsure as to how to proceed as this will be my first time cleaning an un-coated (I'm assuming?) lens or one quite so dirty...but at least it's easy to open!
Any tips/tricks/advice for this would be greatly appreciated as well.
Thanks.
114763 114764 114765 114766
The barrel is marked " Eastman Kodak CO. Rochester N.Y. USA" then has an aperture scale from 4 - 64. No visible markings on the front element and back element says it's a Bausch & Lomb Optical Rapid Rectilinear. Has 15 blade iris and focal length appears to be ~6 inches. No problem covering 4x5 at infinity.
I'm assuming it's a B&L-made RR from an Old Kodak but the barrel mount kinda throws me and I'm not finding much on f/4 RRs.
So, if anyone has any ideas re: the original camera this may have been on (or enlarger?), whether that might have used this lens board, if it's actually the front/rear elements from two different lenses, or any other explanations, etc., I'd love to hear em.
On another note, the thing is pretty dirty with what I'm pretty sure is some (quite a bit) of fungus and the blades are pretty grimy (though still adjust smoothly). I'm planning to try and clean it up a bit but am a little unsure as to how to proceed as this will be my first time cleaning an un-coated (I'm assuming?) lens or one quite so dirty...but at least it's easy to open!
Any tips/tricks/advice for this would be greatly appreciated as well.
Thanks.
114763 114764 114765 114766