Quote:
Originally Posted by Paul Haese
Hi Allan, Yes this was taken at full FL. Given this scope is 20 years old and about 4 hand to me, that the company that made these excellent scopes is no longer in business, finding a focal reducer for it might well be next to impossible. For a bigger field of view I could use a much larger sensor though. Sometimes one has to be happy with what is available. I take your point though, in a perfect world a reducer would great to have.
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Hi Paul,
I see your point.
I did a search and I can't even find if RCOS had focal reducers?
I assume they did and that they would have been 3" types?
The only 3" one I can find is an expensive one -
0.75 X Officina-Stellare type here:
https://telescopes.net/officina-stel...elescopes.html
TS has a cheap 2" type for 0.67 reduction but
I bet it would cause vignetting and wouldn't have the optical quality
to be in same league as a premium RCOS telescope.
https://davidastro.com/en-int/produc...c-telescopes-2
cheers
Allan