Michael... THANK YOU! Now that's what I call a simple, clear and definitive answer. I can sleep soundly now.
Thank you all for your input and ideas.
Type: Posts; User: Poet; Keyword(s):
Michael... THANK YOU! Now that's what I call a simple, clear and definitive answer. I can sleep soundly now.
Thank you all for your input and ideas.
Michael, thanks for the "Lens Tutorial" link, but beside bringing back nightmares of math exams that I didn't study for, I'm also not sure that the formulas given really address my question.
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What a great group of people here! You're all very kind and helpful. And, as I still have one more question... I hope you're all patient too. So please bear with me...
Okay, all clear on the...
... Oh yes, one more thing. As Ernest points out, at 1:1 I am only using a "small part of the lens" and not to the "edges". So, if I understand correctly, would that mean that the smaller image...
Ernest, thank you for your thoughts. Very interesting. While I understand that a shorter lens at double extension would be used for 1:1 images, even the 360mm Ronar doesn't have an image circle...
Michael and Jerry, thank you very much for your informative answers. A few more related questions which I hope you or others can shed some light. While I now understand that the Caltar is not a...
Does anyone have ANY information on the ILEX-Caltar 508mm f=7.0 (20 inch) lens? When was it made? Type of construction? Is it a process lens... good for close-ups?? Overall quality and...