ROR Observatory Levenhuk 8" carbon fiber RC, Astro Physics CCDT67 Astro-Tech AT8IN w/Moonlite, Baader Mark III MPCC Levenhuk 80mm triplet, Astro Tech 0.8X reducer/flattener Celestron CGEM DX w/HyperTune STF-8300M SX 7 position 36mm CFW Astrodon 5nm H-alpha Little Piney Observatory
Quote:I am so sorry, Somehow I thought you were using a C6. My bad.For the C8, aperture is probably being reduced to about 7".It is likely you are loosing an inch or two of aperture for the 10", but I don't have an analysis for the Meade scopes.Again, my apology. For some reason I though you were using a C6.
Quote:Just a word of warning... Using a focal reducer with a 2" diagonal is likley cutting your aperture to maybe 5 inches or less.
Uncle Rod Uncle Rod's Astroblog: http://uncle-rods.blogspot.com/
Quote:In my C8, with a 0.63x reducer in place and my Astro Tech 2" SCT diagonal screwed onto the reducer, aperture measured 190mm. So, a 2" diagonal attached to the 0.63x reducer on the C8 reduces aperture, but only by 13mm.
Quote:This is important because the SCT diagonal often has a much shorter light path than most SCT to 2" adapter/refractor diagonal combinations.
Quote:It really depends on the exact configuration.
Notice that Edz was using a 2" SCT diagonal, not a refractor diagonal.
This is important because the SCT diagonal often has a much shorter light path than most SCT to 2" adapter/refractor diagonal combinations.
Quote:So EdZ...from what I see here, C6 reduced by 12mm and the C8 reduced by 13mm, I guess its safe to assume I'm only losing 14mm on my 10"? If so, thats no biggie...having a flatter and wider field of view is worth losing 1/2" to me.
Quote:It really depends on the exact configuration.Notice that Edz was using a 2" SCT diagonal, not a refractor diagonal.This is important because the SCT diagonal often has a much shorter light path than most SCT to 2" adapter/refractor diagonal combinations.
Quote:I just got an SCT nosepiece for my refractor-style 2" diagonal. Cost about $40 shipped. Then reaching focus with all my EPs was a non-issue.
I noticed no obvious issues using the .63 reducer with a C8. However my C9.25 Edge gives much better views.