Re: Camera Vs Eyepiece
Posted: Tue Sep 06, 2016 7:02 pm
OK...
So when you say "tube lenses" in your previous answer...
So when you say "tube lenses" in your previous answer...
...you are referring to optics whose purpose is to resize the "completed" image and send it to the camera sensor, and not the "telan/tube lens/converging lens" that is an inherent part of the infinity optical system.apochronaut wrote: and had built in shutters and tube lenses connected to exposure control units. The tube lenses were adjustable for the camera format and offered a magnification of between 2.5x and 5X, depending on the format used
It has always puzzled me that APS-C sized sensors are so common, yet it is very hard to find a 1.4X-1.6X projection type photoeyepiece that can be used with them. I have heard of some getting good results by incorporating a 1.4X "tele-converter". Too bad the Sony Alpha one is so expensive. (There are plenty of good used 1.4X for other SLRs, perhaps one could be "adapted")apochronaut wrote:With this set up I get about 125 % linear, of the visible field on an APS- C sensor ( or about the equivalent of a 25mm field of view), so having a low power, well corrected tube lens, is something I am going to investigate.