Just a 2 minute test on Cygnus with the Sigma 50-100mm F/1.8

[michael.h.f.wilkinson]

This was taken yesterday when clouds had swallowed up the comet. I used the non-modded Canon EOS 80D, rather than the modded Canon EOS 550D I have, just to see what a stack of 4 30 s exposures at ISO 200 with the lens wide open would do.

Not displeased with the result. I wonder how the lens performs at F/2.0 or F/2.4. I would not be surprised the stars in the corners would improve a lot (they aren't too shabby as it is, unless you go pixel peeping. It might also do very well with the smaller field of t he ASI183MC. Must try this under darker skies with the other cameras.