My astrophotography website
Quote:Astro-Physics- Backlash- Periodic Error
Calypte Anza, California
14.5" Starmaster with ServoCat and Argo Navis 1966 Unitron 4" Model 152 EQ Tec 140 TV NP101 f/5.4 APO Telvue .8 Focal Reducer FLI ML8300 and CFW-2-7 filter wheel Astrodon Gen2 RGBL 2" filters Baader 2" Narrow Band Filters Borg 50mm Guide Scope/ATIK Titan Guide Camera AstroPhysics AP900 Losmandy GM-8 Gemini
Quote:I like AP very much, but it uses an old-fashioned drive. Nowadays you can choose between friction drive, direct drive, high res encoders, etc. all for better tracking accuracy. The specs say maximum 7arcsec PE, that can be less with newer drives, even make guiding unnecessary.On the other hand it's a well developed mount and does his job very good.
http://www.faintfuzzy.net Stuff C14, C8, Orion XX14i, Meade 8" ACF, AT6RC, AT102ED, Orion ED80, PST, AP1600GTO, CGE, CG5, ST10-XME/CFW8, QHY8PRO, Optec TCF-s, Microtouch Focuser, Pyxis LE, Hyperstar for C8.
- Jared Willson
Quote:Thanks Joe, I will certainly do that.
I lost count of my scopes. Now I just want mobility. I came, I saw, I bought some interesting accessories, and put names to faces: NEAF 2012, ASAE 2012, SWAP 2013, ASAE 2013.
Quote:Maybe you shouldn't. Ignorance is bliss. I read there about quite a few nasty problems with ASA mounts.
Quote:Most issues are related to 'not understanding' the mount.
Others may disagree. Your millage may vary. Void where prohibited by law.
Adam AP Mach 1, Rob Miller TRI36L, Celestron 8" Edge HD Hyperion 17mm, Celestron 40mm Plossl, TMB 7mm & 9mm WO 66, Lunt LS60/B1200 PT, CG-5 Clone STF-8300m Pro Package, Honis-Modified Canon XS, Un-modded T1i, SSAG, TSOAG9, SX Lodestar
Lackawanna Astronomical Society
Quote:Calypte, I looked at the Alpine Astronomical site and did not see the 1000HPS. Where did you catch the ad?Alex