Takahashi TSA-120 & Explore Scientific 102mm APO Refractors
Lunt 60mm PT Ha
Celestron Edge 800 & Edge 1100 SCT's
Celestron AVX & CGEM Mount's
Televue Ethos 100* 21mm, 17mm, 13mm, 10mm and 6mm & Explore Scientific 82* 4.7mm Canon Rebel T3i DSLR SBIG STF-8300M, FW5-8300, OAG-8300, ST-Ic guide & planetary camera
Time spent looking at the stars is added to your life
Bashful, Misty, and little Ralphie - my heavenly stars
A-P 105 Traveler ~ TEC 140 ED ~ TEC 6 MCT
A-P Mach1 GTO ~ Losmandy GM-8 ~ TV Gibraltar
Plus since the 82's are on back order it's an excuse to get the 68's and use my bino tomorrow night!
Dr. Willie K. Yee President Mid-Hudson Astronomical Assn.Member RAC, AOSNY, IDA, Astronomers Without Borders, Charlie Bates Solar Astronomy Project
NexStar 50 Expert, Lunar 50 Expert; AL Outreach, Messier, and Sunspotters AwardsCommander Prius Class Shuttlecraft Zhang HengTeeter 13.1" f/4.5 Custom Dob, NexStar8 SE, Meade 80mm f/6 ED Apo, Meade 363 f/10 80 mm, Lunt LS60THa, PST dbl stk
Quote:I am a bit confused... What diagonal do you have?
Quote:I am not sure if you know this, but the 1.25X GPC will give about 1.5x if you use it between the nose and the front of the diagonal.
Quote:I also don't know what diagonal you want to use. There is the T2 Maxbright Prism diagonal (non Zeiss prism) and the T2 Baader with the Zeiss prism, but at twice the price.
Quote:And of course you stand your very best chance of hitting focus with the minimum GPC using the Maxbright (non Zeiss) Prism Diagonal. I use this diagonal with my Mark Vs and they work great.
Quote:I'm with Ed on this. What diagonal do you have? I use the Baader Zeiss T-2 prism diagonal with my Mark V binos and I can reach focus with either the 1.25 or 1.7 GPC in my 5 inch refractors.
Quote:Personally, I prefer the 1.7 GPC and my eyepieces work well with this. As I mentioned earlier, I like the 24mm Panoptics for general DSO observing and they give me a very pleasing 69x with about 1 degree FOV. This is fine for 90 percent of the DSO out there. If I ever need more FOV, I'll change to the 1.25 GPC.
Quote:Anyway, I would urge you to try again. My Mark V will NOT reach focus with a standard 2 inch diagonal in these refractors, but the smaller Baader T-2 prism works perfectly.Hang in there,Ron
Quote:I think once you get the whole corrector situation resolved and a pair of low power eyepieces that you like situated in your C11, you may be surprised how much you enjoy deep sky as well as the planets. Many of us find that the relaxed use of two eyes more than makes up for the loss in magnitude.Enjoy!