Punkinhed7
23-Mar-2018, 15:46
Picked this lens up recently because, well, I was impressed by its size. Measures about about 4 inches long, 3.5 inch diameter across the front and 2.75 inches diameter across the rear. Weighs 2lbs 14 ounces, so pretty hefty.
My assumption was that it was a process lens of some sort but it seems to have been pulled out of whatever casing/camera that once held it and that may have displayed the identifying information
The serial number “EM7976” is engraved on the front middle and rear sections—is that a 1943 CAMEROSITY code or something else? Additionally the rear has “BF123.05” or “BF12305” engraved as well.
Counting at least 9 reflections when looking down in to it, but I could be off.
The threaded ring above the plumbers tape rotates and activates a 15-bladed aperture with 6 click stops.
There are also bubbles in at least the front element, and at least one of the elements seems to have some thorium-related yellowing.
Seems to be a pretty fast lens given that it projects a pretty strong image, even in a well-lit room.
Anyways, thanks in advance. Any and all help/information would be greatly appreciated.
176392176393176394176395
More photos in next reply
My assumption was that it was a process lens of some sort but it seems to have been pulled out of whatever casing/camera that once held it and that may have displayed the identifying information
The serial number “EM7976” is engraved on the front middle and rear sections—is that a 1943 CAMEROSITY code or something else? Additionally the rear has “BF123.05” or “BF12305” engraved as well.
Counting at least 9 reflections when looking down in to it, but I could be off.
The threaded ring above the plumbers tape rotates and activates a 15-bladed aperture with 6 click stops.
There are also bubbles in at least the front element, and at least one of the elements seems to have some thorium-related yellowing.
Seems to be a pretty fast lens given that it projects a pretty strong image, even in a well-lit room.
Anyways, thanks in advance. Any and all help/information would be greatly appreciated.
176392176393176394176395
More photos in next reply