Bob diagonally parked in a parallel universe...
Quote:Thanks Bob very informative. Robert we have areas in the Australian outback with 250+ days of sunshine a bit hot though.
Quote:I am not in the market for double stacking
Lunt LS80t ,LS60f, LS60t, LS35 + PST
ES 102 APO ,Lunt Herschel Wedge
Celestron cpc 800
CG-5,Vixen porta, Twilight II
PGR Chameleon mono
Quote:Can you also clock your blocking filters?
Quote:I have clocked the BFs in my Lunt and found the factory rotation was the best location. Remember you have to tilt every flat surface or you get a reflection (unless you use a polarizer like the solid etalons). The optimum tilt is the minimum tilt for moving the reflection outside the FOV. The smaller BF diameters make imaging possible but also make it so you have to tilt the ERF and etalons more. Tilting the etalons causes its own issues.
Quote:The LARGER BF diameters make imaging possible but also make it so you have to tilt the ERF and etalons more. Tilting the etalons causes its own issues.
Solar eclipse chaser: Madagascar 2001, Libya 2006 and Easter Island 2010. PST Original blue Denk PST corrector, 21's & Denk II BV, wow! Denk Bino/lunt diagonal adaptor. LS100THa/ B1800 (PT) w/ FT. Vixen GP-D2 motorised on Vixen pier. LS 60/ 50 THa/ B1200 (PT) w/ C. Vixen GP motorised & Vixen pier (original all green). Takahashi FS 102. Vixen 102M. Berlebach tripod & GP for travel. DMK 41 FW ATM - spectroheliograph in the making 17 11 2011
Have a Clear Sunny Day
Lat 45.02 N , Long 74.7 W
Cornwall, Ont. Canada