robrj
Member
Posts: 248
home town/country: Escondido, CA
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Post by robrj on Nov 14, 2016 22:37:07 GMT
I picked up an Antares 2" focal reducer (0.7x). I have a 0.5x (1.25") but it's a little too aggressive for my f/5 scope. With the 0.7x, I'm getting f/3.6 and the field looks pretty good. To attach it for use with my Ultrastar, I used my 2" GSO Barlow. I took off the barlow lens and replaced it with the 0.7x reducer. It worked great. I set a parfocal ring on the Ultrastar so I can just slip it into the barlow tube and then adjust focus. Here are some images I took with it. Orion Skyview Pro 8", AVX, Ultrastar-C with Optolong CLS-CCD (0.7x). NGC 891: M1: M31:
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Post by davy on Nov 14, 2016 23:25:11 GMT
Looking great rob,,
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