Quote:
Originally Posted by multiweb
The SXV-AO Large format is 80mm ID. That should fit your sensor.
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No, the SXV-AO-LF has a 60mm optic. The actual clear aperture is even less (~2-3mm?) due to the mounting ring. The SBIG AOL is a little bigger at ~65mm aperture. Looking at the attached CAD diagram both are marginal with 16803/9000 chips. The yellow circle inside the 52.1mm chip diagonal is the projected 57mm aperture, 75 mm from the chip with a f/6.8 light cone. If you plan to crop (or deal with severe vignetting) it might be OK, but only a quarter of the guide chip will be fully illuminated.
EB