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Hi Cameron,
that’s a really nice image. I do like dso’s in their stary context like this, and you have nicely managed to capture the ‘wings’ which are often missed. Nice structure too.
Well done.
Looking forward to seeing more.
Clear skies, Callum
I guess because they were originally made by Coronado, and they used their own tooling… Probably never been changed to use ‘standard’ Meade threads.
Maybe you could find someone with a broken PST available for spares?
Cheers, Callum
Hi Terry,
you could see if you could borrow a Meade star diagonal or focusser and see if the thumbscrew from that fits yours – at least then you would have a screw to compare against.
Most of these thumbscrews seem to be a bit non-standard to me… Though I must admit I have never measured one.
Callum
From a chromatic aberration point of view probably not – but many prefer wider fields of view, and ‘better’ eyepieces may be better constructed, with better coatings.
I usually use my TV plossls on my Lunt solar scope – i quite like the combination.
Zoom eyepieces seem to be quite popular too, though I don’t have one.
Sunny Skies, Callum
