mdarnton
11-Mar-2016, 20:51
I just got a camera at Ebay, and the sale had no identification for the lens. Here's the best picture of it in the sale: http://img.auctiva.com/imgdata/1/9/6/6/8/0/4/webimg/883738825_o.jpg
I figured it would just be some sort of boring rapid rectilinear, but today when I unpacked the camera and took the lens off the board, it seemed unusually heavy and too nicely made, with a very cleanly-machined blackened brass mount. After a bit of checking, I see that it's approximately symmetrical, four elements on each side, eight total. The FL comes out to about 210mm, at f/10. The individual components work differently when turned around--one direction is longer than the other, and throws a bigger image, but they're around 13-14" FL each, f/16. The lens almost looks as if it's coated, and it's in perfect condition except for some schneideritis. Disassembly is from the inside of each mount, and the faces, not the sides, of the threaded rings are a bit wide and knurled around with an unusual pattern somewhat like this: >>>>>>>>>>>>>>>>>>>. I took it apart, and the elements look like this:
http://darntonviolins.com/images2/misc/lens.jpg
Before I took it apart, I was thinking some kind of protar, which I don't know much about, but it's too slow, and all of the protar photos I find show all of the individual lens elements as the same size.
Anyone have any ideas what it is??
Thanks.
I haven't had a chance to check coverage, but I don't think it's going to be very wide.
I figured it would just be some sort of boring rapid rectilinear, but today when I unpacked the camera and took the lens off the board, it seemed unusually heavy and too nicely made, with a very cleanly-machined blackened brass mount. After a bit of checking, I see that it's approximately symmetrical, four elements on each side, eight total. The FL comes out to about 210mm, at f/10. The individual components work differently when turned around--one direction is longer than the other, and throws a bigger image, but they're around 13-14" FL each, f/16. The lens almost looks as if it's coated, and it's in perfect condition except for some schneideritis. Disassembly is from the inside of each mount, and the faces, not the sides, of the threaded rings are a bit wide and knurled around with an unusual pattern somewhat like this: >>>>>>>>>>>>>>>>>>>. I took it apart, and the elements look like this:
http://darntonviolins.com/images2/misc/lens.jpg
Before I took it apart, I was thinking some kind of protar, which I don't know much about, but it's too slow, and all of the protar photos I find show all of the individual lens elements as the same size.
Anyone have any ideas what it is??
Thanks.
I haven't had a chance to check coverage, but I don't think it's going to be very wide.