Meade LS8 ACF Meade 2" Diagonal Apetura 10" Tweakers Package Meade ETX-125, ETX-90 for Solar Celestron 80mm APO PST Meade SWA - 34mm,28mm,24mm,20mm Brandon 32mm, 16mm Vernonscope 40mm Erfle 2" ES 14mm,11mm,6.7mm 8.8 Nagler 13mm T6, Pan 19mm Meade 12.4 Pl,9.7mm, 15mm SP Meade 2x Shorty Barlow Powermate 2.5x WO Bino Viewer, 20mm 66* pair Denkmier 2 Super System Meade Nebula Filters Meade 9x60 Bino Vivitar S1 8x42 Bino Canon T2i, 18-55mm, 50mm 1.8, 55-250mm
Quote:I am willing to bet that using a 2" diagonal with a binoviwer is going to cut your aperture pretty severely.Even in my C5 when using the Maxbright with a T2 prism with a total light path of about 200mm, my aperture is reduced to 123mm. Doesn't sound like much, but again, this is with only 200mm of back focus.My bet is that a 2" based binoviwer is going to cut your aperture down 3/4ths inch or more.
Leica 8x20; Nikon Action 7x35; Vixen Apex Pro 8x42; Orion 15x63; Docter Nobilem 15x60
WO Megrez II 80 FD / APM 107mm f/6.5 / Mewlon 210 on DM-6 + Berlebach Planet
C10NGT, Z8, 150 Rumak, XLT 150, C6, C5, SW5 Newt, 4.5 Ball, C102GT, C90, ST80, A70LF; 15x70, 25x100; Burgess BV; Paracorr II; T6 2.5, XO 2.58/5.1, Ethos-SX 3.7, Delos 4.5, TV Plossl 7.4-26, BCO 10, Hutech HC 12.5, Sterling 12.5-25, ES100 14, CZJ H 16/25, CZJ O 16, M5k UWA 24, T5 31, Ultrascopic 35, Titan-II 40; Bino Pairs M5k UWA 6.7, Baader Zoom 8-24, M5k SWA 24, TV Plossl 26, RKE 28.7; Zooms NZ 2-4, NZ 3-6, Leica ASPH 8.9-17.8, Baader 8-24; Baader Zoom Barlow, VIP Barlow
Superb contrast and detail on solar system and deep sky.
Superb fit and finish.
Absolutely no color difference between eyes, even in daylight.
Upside down view matches star maps. Not reversed left to right.
Only unit to focus without an aid in a refractor.
Angle was perfect for a piggyback refractor on an SCT.
Least out of field reflection from a nearby bright star.
Razor sharp images.
17mm clear aperture results in vignetting of eyepieces over about 22mm. Better suited for solar system and double star observations in an SCT.
Eyepiece holders use setscrews. Results in less success for people to get the views merged.
Sliding style requires re-focus any time inter-pupillary adjustment is altered.
Upside down view takes some adjustment for many viewers.
Angle frequently not comfortable on SCTs, and probably not usable on reflectors.
Rodger EON 80 Tak TSA-102 EON 120 Orion Apex 127mm Meade AR6 Tak FS-152 Celestron Nexstar 6SE and 8SE Celestron 9.25" SCT Meade 10" LX50 Celestron 11" SCT Celestron 14" SCT 16" Teeter/Zambuto 20" f/5 Obsession Classic Zeiss Conquest HD 10X42 Astro Physics Premium 15X70 Oberwork 20X80 Deluxe III Oberwork BT 100-45 Complete set of Baader Genuine Orthos Zeiss Diascope eyepiece 12mm, 68AFOV, Great eye relief (sharpest, highest contrast eyepiece I own, just awesome) etc., etc.
.... back yard astronomer ================= Don't forget to look at the moon often. Its a play ground of fun if you throttle up the magnification!
Quote:Hi Mark, Edggie,I still have the original c6 1.25 v/back. I am very uneasy that it will hold the weight of even a typical WO or similar bino well. It is difficult to get at the two locking screws with enough pressure to really get a purchase on the diagonal well. I could certainly obtain something like a WO 1.25 diagonal though.A much better grip would ben if i used my existing 2" v/back into which i insert a 2 to 1.25" self centring adapter, eg by revelation or orion. this would grip the 1.25" diagonal nosepiece well, but the combined length of the 2" v/b and self centre adapter would be around 60mm.most WO etc are about 110mm light path. i think this would still bring a total light path over 200mm with a 1.25" diagonal. i am still concerned if i am operating at an undesirable f-ratio using the WO 1.6x. that then brings in issues about eyepieces to use. a friend has a pair of meade 5000 14mm plossls. i used these in the past and they were superb. will they offer a sensible mag in this potential setup? i do not know, as i do not know the operating focal length.btw, i am actually looking at the original celestron 1.25 v/back, and to me it still looks to be around 50mm long to where a 1.25 diagonal would insert.so, say 50mm v/b + 75mm for 1.25 diagonal + 110 for bino less 30 for 1.6x = 205mm. am i right? but still do not like the idea of all the weight on 2 little thumbscrews on that v/back!mike