eyepiece to make telephoto lens into telescope - Camera Hacker
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I bought a Sunagor PATP 54038748 OP Telephoto lens adapter for my Canon Olympus telephoto lens with a 3 x converter. I don't know if they still make them. It is ...
I have a research microscope with a C-Mount exit-port on the top. I wish to attach a Canon PowerShot SX100 to this exit port to record images of samples. The ...