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Astroblagger

First light for ASI120MM

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Thanks, rings did appear when I tuned the PST a certain amount. The ASI120 didn't focus in the PST will need to machine more off the eyepiece holder.

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The ASI120mm does suffer from Newton rings (as do all CMOS based cameras), mostly if you start increasing the magnification with a barlow, however a tilt adapter will solve the problem outright. Fantastic first light.

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Thanks, rings did appear when I tuned the PST a certain amount. The ASI120 didn't focus in the PST will need to machine more off the eyepiece holder.

i was just about to ask that question, how much do you think you have got to lose?

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Iv already taken about 2mm of it, but I didn't want to take any more off it as I would have to then drill and tap a new thread for the focuser retaining screw.

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Fantastic image. I have recently taken delivery of an ASI120MM for night time and bought one of the new ones ASI120MM-S (USB3), both work incredible well for solar and even Ha. If you don't need a tilt adapter, and mine seems fine unless you put a Barlow in, then I wouldn't bother. I understand TS Optics make a tilt adapter, which is sold through 365Astro for about £70.

Robin

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