Joined June 2012: Location, Ottawa, Ontario
Mes télescopes et jumelles:
150mm F5 Newt on EQ5, 127mm Mak Cass on AZ4
Oberwerk BT70-45 and 15X70 SkyMasters
Quote:Is this the newer MkII, which uses 1.25" eyepieces and utilizes the full aperture? (As opposed to the first iteration which employed proprietary eyepieces and worked at 60mm aperture?)
Binoculars: Miyauchi Saturn III - 33/39/50/71/150x100, WO 22x70ED, Fujinon 16x70 FMT-SX Pentax 10x50 PCF-V, 10x43 DCF-SP, 6.5x21 Papilio
Nikon 10x35 EII, 7x35 E, 8x30 EII, 8x23CF AS Diplomat
B&L 7x26 Custom
Scopes: C9.25, TMB130SS/FT, SV80S-LOMO 80/480
I have on hand for examination--and overdue for return--the 90 degree version of the Mk II 70mm BT. I assume the prism rear aperture will be fairly similar. If so, a 19mm Panoptic is a wonderful eyepiece for it. Even a 24mm Pan is quite useable, albeit with a *very* small and not too objectionable edge darkening, which delivers the widest true field possible at a nice AFoV and with excellent correction across the great bulk of the field. I've tried both these eyepieces, as well as some of a friend's Naglers.
Mr. Stacy From: Seattle, WA Proud to be a Cloudy Nights Member since 9/15/02
* Celestron NS11 GPS - Stellarvue Raptor 90mm APO* Vixen Ultima 8X56 - Fujinon 10X50 FMT-SX - Nikon 7X50 ProStar - Vanguard Endeavor ED 8X42 - Nikon Action Ex. 7X35More cowbell please!
Milton Wilcox R.I.P
Quote:I'm going to have to look into this further. I had read that they were at full aperture. Thanks for the heads up.Eric
.... back yard astronomer ================= Don't forget to look at the moon often. Its a play ground of fun if you throttle up the magnification!