kennb
Contributing Member
Posts: 37
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Post by kennb on May 21, 2012 20:16:32 GMT -5
This is the earliest of my Pentax (a Honeywell) with a 300 mm Vivitar lens that I am currently shooting with. Last week I used the Canon EOS with 100mm-300mm and will compare the photos. It is tripod mounted, I tryed to hold it to shoot without the tripod,,,,ya,,,right, thing weighs a ton. BTW it is old m42 mount that I got on an old Yashica I picked up years ago, this is the first time out for shooting with it. I do have one question on it if anyone knows. One the last ring closest to the body is a slide button of some sort labeled O and L. You can see it in the picture. On the other side of the same ring is a thumb screw labeled M. This is a straight 300mm lens. KennB
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Post by Just Plain Curt on May 21, 2012 22:03:03 GMT -5
No problem, an easy I.D. O is for Open, L is for lock. Makes this a Vivitar TX or T4 mount lens. Turning it to O releases the mount so you can interchange it for one of the many lens mount systems of the time. Came in 28, 35, 135, 105, 200, 300, 400 as well as several zooms.
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