walter23
16-Jan-2008, 21:34
I picked up this lens several months ago for my 8x10 project camera, which is still a project rather than a usable camera (though it's pretty damned close now).
http://ashphotography.ca/zenphoto/albums/mishmash/NEW0001.JPG
I finally got around to cleaning it up and mounting it on a lens board (thanks to a flange I finally got my hands on). The glass on this thing is beautiful! Almost totally clean! I thought it was somewhat yellowed and marked but there are only a couple of very tiny scratches and spots; almost like-new.
http://ashphotography.ca/zenphoto/albums/mishmash/NEW0002.JPG
http://ashphotography.ca/zenphoto/albums/mishmash/NEW0003.JPG
This matte paint is prone to fingernail scratches, but that's of little consequence.
What a sexy lens:
http://ashphotography.ca/zenphoto/albums/mishmash/NEW0004.JPG
I can't wait to get some film and try it (could shoot as-is, believe it or not the bellows only have a few tiny pinholes which won't matter for wider aperture exposures).
But I wasn't just going to brag about how nicely this lens cleaned up and show off my lens board, which as a non-woodworker I'm actually kind of proud of - I have a question about it (and other convertibles). It seemed I needed way more bellows extension than I would have anticipated for the 21" component. I couldn't even use the 28" component. I guess this is partly because the lens is mounted on the back of the shutter; but is there some other feature to the design of these that puts the nodal point way back from them? Are the single elements like a retrofocus lens?
I also recently got my hands on a 150/265 symmar convertible for 4x5 and the 265 configuration requires about 310mm of bellows for infinity focus. Surprised the hell out of me.
What's the deal here?
http://ashphotography.ca/zenphoto/albums/mishmash/NEW0001.JPG
I finally got around to cleaning it up and mounting it on a lens board (thanks to a flange I finally got my hands on). The glass on this thing is beautiful! Almost totally clean! I thought it was somewhat yellowed and marked but there are only a couple of very tiny scratches and spots; almost like-new.
http://ashphotography.ca/zenphoto/albums/mishmash/NEW0002.JPG
http://ashphotography.ca/zenphoto/albums/mishmash/NEW0003.JPG
This matte paint is prone to fingernail scratches, but that's of little consequence.
What a sexy lens:
http://ashphotography.ca/zenphoto/albums/mishmash/NEW0004.JPG
I can't wait to get some film and try it (could shoot as-is, believe it or not the bellows only have a few tiny pinholes which won't matter for wider aperture exposures).
But I wasn't just going to brag about how nicely this lens cleaned up and show off my lens board, which as a non-woodworker I'm actually kind of proud of - I have a question about it (and other convertibles). It seemed I needed way more bellows extension than I would have anticipated for the 21" component. I couldn't even use the 28" component. I guess this is partly because the lens is mounted on the back of the shutter; but is there some other feature to the design of these that puts the nodal point way back from them? Are the single elements like a retrofocus lens?
I also recently got my hands on a 150/265 symmar convertible for 4x5 and the 265 configuration requires about 310mm of bellows for infinity focus. Surprised the hell out of me.
What's the deal here?