I was wondering if I need to factor in the crop factor in the focal length when using an APS-C camera...
ie. using a Canon 6D with a 200mm fullframe lens vs. a Canon 80D (crop factor 1,6) with the same 200mm fullframe lens. So does Ekos / Astroberry automatically know from the different sensorsizes that it needs to recalculate the FOV or do I need to create a separate lens with 320mm if i am using a fullframe lens on a APS-C camera? and if I have to create a second lens does the f stop change as well since the lens is the same I would not think so...
The software works out the field of view from the focal length and sensor size.
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No. FOV is determined with focal length and sensor specs. The whole crop factor thing only applies to photographers trying to match an FOV in relation to a standard film dimension. The concept doesn't apply to astrophotography.
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