8" GSO RC with CSL Moonlite FocuserTelevue TV60isLosmandy G11 with Gemini 2 (with Ovision upgrade)
SBIG STT-8300m with Self Guiding filter wheel
A wide assortment of lenses for my Canon.
Clear skies - Jim Crazy PNW imager !
A-P Mach1 on 12" concrete pier - ROR structure.
Tak FSQ85-EDX, Tak FS-128. Orion 8" f/3.9 w/MoonLite motorized - MPCC MkIII CCD:
SBIG 8300M/FW8, Astrodon 36mm LRGB, 5nm Ha, 3nm SII, OIII - Canon EOS 6D unmod SSI3, SSAG,
Skytools3pro, MaxImDLpro, PSCS5, PSPpro, TheSkyX, TheSky6, BYE, StarTools
Orion XX14g -for visual- diags, ep's, accy tubes, Binocs .
Quote:OPT version of AT8RC currently on 15% sale.Pluses10 inches back focus.Natively f8Ships internationally without any use if intermediatarynegatives No reducer availableDistraction spike (I'm not really partial to diffraction spikes, the distract from the image)
BackyardEOS ~ Purpose-built astrophotography software!http://www.backyardeos.com/CANON, NIKON, QSI, SBIG, ATIK, SX, ASI, QHY, SSAGAT8RC, AT6RC, AT65EDQ, EON 120mm, Lunt 60THa B1200ASTRODON LRGB Ha NII SII OIII (3nm), IDAS, CLS, SkyGlow10Micron GM2000HPS (ordered), NEQ6, HEQ5, CG5-GTOne clear night a year
C14 EdgeHD, C11 EdgeHD Zhumell 8" f/6 Newt AP1200GTO, CGEM DX, CG5-ASGT Rob Miller Tri36M tripod Canon Rebel XS, Atik 314L+, DSI pro I,II, QHY5L-II SX 7 FW with Astrodon LRGB, Ha 5nm Hutech OAG5, Rainbow Optics Grating Scorpio Observatory
Quote:The RC8 is PITA to collimate. Having owned the AT8RC and the Edge (11), I would recommend the Edge8 scope. You can easily work around the moving mirror but beware the RC's finicky collimation.
Quote:I use the Astro-Physics Telecompressor CCDT67 on both the AT6RC and AT8RC. It's a reducer but works darn well as a flatner too.http://www.optcorp.com/astro-physics-ccd-telecompressor-for-f9-f18-telescopes...I suggest you get the Astro-Physics Part #AP16T to pair with the CCDT67 to ensure you have the proper spacing.http://www.optcorp.com/astro-physics-2inch-tapered-nosepiece-with-t2-threads....
Quote:Guylain,From your experience does the scope work without a field flatner when working at f8? Also how tight are the stars? My LX200R almost always gave me bloated soft stars when compared to my televue 60is which gives sharp tight stars.Korboh, about the collimation difficulty could you please elaborate?
Quote:If you are lucky to not need more than minor collimation adjustments then RC8 fine. But if you ever have to adjust the primary and go a bit too far off then the RC is very unforgiving. Especially these cheap RC scopes don't have good and repeatable mechanics. You will also have to invest in high-quality collimation tools (expensive ones). There are other design issues with RC8 that can potentially give you headaches like the primary connected to the focuser and resultant flexure issue. In contrast EdgeHD is so much more robust and simple proven design. Great for imaging and visual. I dont see *any* advantage of RC8 over Edge8. The mirror of RC8 is *not* fixed as you will realize when you start seeing flexure in imaging.
Takahashi EM-200 Temma II, Vixen SXD+NexSXDVixen VC200L, SN-6, some lensesCanon 1000D, Nikon D5100 Mono-convertedhttp://www.astrobin.com/users/cherokawa/
-Saad Paramount MX Starlight Xpress Lodestar Hutech OAG5 Losmandy G11 SBIG ST8300M. Tak FSQ-85EDX ATRC8 w/Moonlite My Astrophotography Gallery
Quote:Our local dealer doesnt stock it so I have to order from USA, ship it to a US address and then get it shipped to Oman. That's an ordeal I am not too keen about.