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Old 25-08-2017, 08:53 AM
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Astrofriend (Lars)
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Join Date: Aug 2017
Location: Stockholm, Sweden
Posts: 187
This was really interesting and useful.

When I upgraded my refractor with 2.5" flatfield flattener and later a 3" I had big problems until I got the right parts.

You can read here what threads I had to use.

2.5" ff + reducer:
http://astrofriend.eu/astronomy/proj...refractor.html

and

For the 3" ff:
http://astrofriend.eu/astronomy/proj...flattener.html

I will later upgrade the 3" ff with an off-axis adapter, then it starts all over again to find correct parts, not only the threads, they must be of the correct lenght also.

Maybe I shall collect all threads in a table later?

ps.
I think I have a 1/2" bolt to my EQ6 Synscan Pro mount, not M12, at least I bought a 1/2" recently. I will check it up later.

/Lars
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