Quote:
Originally Posted by troypiggo
Really nice! That 60Da certainly does the job with the Ha. I'm curious about that lens - before softening the stars, were there diffraction spikes from the lens aperture blades?
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Thanks. At F2.0 there is nil diffraction....while I haven't pushed the lens stopped down, I'd expect you'd see it at F8.0 and smaller.
BTW I did a
write-up of the Sigma here a while ago.