254mm f/2.8 Customized Carbon Fibre Astrograph; 127mm Omegon Triplet with Moonlight Focus;
TS Optics 80x20 Apo Binoculars; Celestron CGEM; Atik 490ex Mono; QHY5L ii
Paramount MX AG Optical 12.5 IDK Apogee Alta 16803 AstroDon Series 2 E LRGB AstroDon Ha 5nm SII 5nm OIII 3nm SBig Sti ACP observatory control, ACP Scheduler PixInsight, Maxim DL 5, My Images http://www.remarkableheavens.com/
Quote:If you have focuser sag, try imaging with the focuser on top of the tube.
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
My astrophotography website
Quote:I cannot confirm that there is no fault with the sensor, however,as I stated when I rotate the camera, the unfocussed corners shift to another spot.
Robert The more I learn, The more there is to learn! Orange Zone Dark Site 3 Mounts 4 Imaging Cameras 3 Guide Cameras OTA's = yes
Quote:Could not test this because I only have the one reducer. Wouldnt I have horrible coma all over when testing without a reducer?
Quote:Ready to give up on AP
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'd ditch the CGEM before anything else!
Quote:Don't knock the CGEM!!! It is capable.
My Astro Photos
Quote:Quote:Don't knock the CGEM!!! It is capable.uhhh, Paramount? is that the consequence of a close relationship with a CGEM
http://www.astrobin.com/users/orion69/ TS 150 mm APO Triplet, Feather Touch 3.5" focuser, Micro Touch Focusing System CGEM on custom made platform Atik 383L+ mono, Atik filter wheel, Baader LRGBC + narrowband filters SX Lodestar + TSOAG9 Dew-Not heater
Quote:I had my years of frustration with reflectors. Flexure, coma, field curvature all of the problems that you can face, I wrestled with in spades.I finally went to a good APO refrator and never had to deal with these issues again.Am I saying reflectors are bad? No. I am saying they can be very difficult to deal with and life is too short.Blueman
- Jared Willson
Quote:I found an adapter that adjusts any tilt that one has in the optical path. So I wihl place my order on monday and try this out. Its not expensive, so its definitely worth giving a go.Tonight is one of those clear wind still nights, however my equipment stays in doors until my adapter arrives.
Quote:If you are using an ASA 10" Newtonian you should not have issues with mirror flop when slewing. If you are, then you need to adjust the three nylon screws that hold your mirror in place.I have an ASA 10" Newtonian and I had a similar problem with mirror movement. I also had issues with collimation and I solved all of these issues.This is how I solved them.To elliminate all mirror shift, remove the primary mirror from the telescope, loosen the three nylon screws and then place a sheet of standard printer paper between the side of the mirror and the nylon scew. Tighten the nylon screws until they place some pressure just enough against the paper that you can't pull it out. Then back off the nylon scew just a fraction or until a slight tug allows you to pull the sheet of paper away from the mirror. Do this same procedure for all three nylon scews. This will leave the nylon screws in a position to where they barely are touching the edge of the mirror, enough to prevent mirror movement while not placing unecessary pressure against the mirror.To ensure excellent collimation with this telescope I recommend three important steps.1) replace the secondary mirror screws with socket head screws. This will enable you to have more precision control over adjusting collimation of the secondary mirror.2) re-center spot your mirror with a radiation symbol instead of the triangle. This will provide more precision alignment when using the CatsEye Inifinity autocollimator in the final step of collimation.3) Use the CatsEye Blackcat XL and Inifinity Autocollimator to collimate this scope.And NEVER use a star to collimate your ASA Newtonian telescope. When you are perfectly collimated, a star will ALWAYS appear out of round.The ASA N10 Newtonian astrograph is an excellent telescope. I use mine with their DDM85 mount and I can take images at F/2.8, F/3.6 and F/6.3 up to 30 minutes without guiding. I have no need for an OAG for this system.
flickr photos: http://www.flickr.com/photos/24719437@N03/
Quote:Pity they don't say all that in their adverts:http://www.optcorp.com/product.aspx?pid=10553cheersAllan