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View Full Version here: : CPC-Ethos Compatability,


pwi192
22-09-2008, 07:45 PM
Could someone please advise me if the EYEPIECE " Televue Ethos13mm" is as effective with a CPC1100"Schmidt- Cassagrain" Telescope as it is with the Newtonion Scopes etc. I have just purchased the scope & have all but bought the eyepiece.
Thanks for your help!

Satchmo
22-09-2008, 09:15 PM
If you're interested in deep sky observing you'd find the 1.3 mm exit pupil the 13mm delivers a bit dim for general purpose deep sky viewing . A 17mm Ethos would be a little better ( 1.7mm pupil ). Personally I'd go for something like a 22mm Nagler which will give a wider field with brighter images and @F10 and Panoptic 35mm for wide fields..

I don't know whether those F6.3 telecompressors are usable visually but that needs to be looked into before you make your choice .