Click here if you are having trouble logging into the forums Cloudy Nights - Official Forums of the 2009 International Year of Astronomy Privacy Policy | Please read our Terms of Service | Signup and Troubleshooting FAQ | Problems? PM a Red or a Green Gu.... uh, User   You are not logged in. [Login] Entrance · Main Index · Search · New user · Who's Online FAQ · Calendar Equipment Discussions >> Mounts Previous   Index   Next   Threaded   Pages: 1 jaynes super member Reged: 12/09/05 Posts: 142 Loc: North Carolina 650mm f/l and 20-25 lbs - recommendation       #2565360 - 08/07/08 12:41 AM Edit   Reply   Quote Quick Reply   I'm looking to do imaging with a 650mm focal length refractor. The total equipment weight (imaging scope, guide scope, dovetails, cameras) will be 20-25 lbs. The imaging resolution will be approximately 2 arcsec/pixel, and I'm hoping to do 5-10 minute subs. Will the Orion Sirius (HEQ5) handle this? Or should I move up to the Orion Atlas (EQ6) or something even bigger? Thanks for any advice. -------------------- Chuck Jaynes Stellervue SV4 APO Refractor Edited by jaynes (08/07/08 01:03 AM) Post Extras:       WarrenS sage Reged: 03/04/08 Posts: 324 Loc: Hudson Valley New York Re: 650mm f/l and 20-25 lbs - recommendation [Re: jaynes]       #2566043 - 08/07/08 11:41 AM Edit   Reply   Quote Quick Reply   The Orion Sirius would probably be the minimum. I've seen posts here that it's doable at 20-25 lbs. The Atlas would handle it with ease. Depends how much you want to spend and how much weight you want to lift. -------------------- Warren Astro-Tech 127EDT Celestron Onyx 80ED C8 (circa 1983 Orange Tube) Atlas EQ-G Canon 135mm F2.8 Canon 40D, Astronomik CLS clip filter Leica, Minolta binos Post Extras:       Pages: 1 Previous   Index   Next   Threaded   Extra information 12 registered and 13 anonymous users are browsing this forum. Moderator:  Charlie Hein, FAB  Print Thread Forum Permissions       You cannot start new topics       You cannot reply to topics       HTML is disabled       UBBCode is enabled Thread views: 106 Jump to *International Year of Astronomy 2009* -----   Global Coordination   Cornerstone Projects   Special Projects   Special Task Groups   Global Activities   National and Regional Activities   IYA 2009 in Africa   IYA 2009 in the USA*Announcements and News* -----   Cloudy Nights Announcements   Discussion of CN Articles, Reviews, and Reports   Beginners Forum   Celestial Events   Light Pollution*Equipment Discussions* -----   ATM, Optics and DIY Forum   Binoculars   Binoviewers   Cats & Casses   Classic Telescopes   Equipment   Eyepieces   Mounts   Observatories   Reflectors   Refractors    Celestron SkyScout and Meade mySky   Video and Electronically Assisted Astronomy*Astrophotography and Sketching* -----   Beginning Imaging   Film Astrophotography   DSLR & Digital Camera Astro Imaging & Processing   CCD Imaging & Processing   Solar System Imaging & Processing   Sketching   Astro Imaging/Sketching Contest *Observing* -----   General Observing   Planetary and Solar System Observing   Lunar Observing   Deep Sky Observing   Double Star Observing   Solar   Variable Star Observing and Radio Astronomy*Telescope Specific Forums* -----   Celestron NexStar    NexStar GPS / CPC Telescopes   Questar Forum   Meade ACF/RCX / LX / GPS    Meade ETX*Other* -----   Science of Astronomy & Space exploration   AstroWebsites   Space Rocks*Speciality Forums* -----   AstroArt   Astronomy Software & Computers   Stellar Media   Astro Outreach, Clubs and Star Parties*CN Feedback and Vendor Announcements* -----   Vendor and Group Announcements Home

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