Hi, no its your standard Pentax SMC-M 28mm F2.8
60 lights, 20 darks, 24 flats, 50 bias. Just standard Deep Sky Stacker and the ancient PS 7. The KF is an APS-C. I have a lot of old Pentax lenses so thats why I use them over FF. I use Canon for FF. Conditions were quite misty and cold which is why I gave up after 60 frames.
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