· Get a Cloudy Nights T-Shirt · Submit a Review / Article    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] Forum Archives · Entrance · Main Index · Search · New user · Who's Online FAQ · Calendar Astrophotography and Sketching >> DSLR & Digital Camera Astro Imaging & Processing Previous   Index   Next   Threaded   Pages: 1 WarrenS scholastic sledgehammer Reged: 03/04/08 Posts: 892 Loc: Orange County New York My best NGC7000 and I forgot the d@#n flattener.       #3405724 - 10/23/09 08:03 AM Attachment (25 downloads) Edit   Reply   Quote Quick Reply   Had the clearest,darkest sky in many months a few nights ago and it turned into a Murphy's law night. I kept getting "star not moving enough" in PHD when I tried M27 in the 127EDT guiding with the 80ED. I gave up and set the timer for two hours of 90 second unguided exposures,with over half of them having to be thrown out. Then before packing it in I realized the cable from the mount to the SSAG had come loose and that's why I got the "star not moving" error message. I think Craig needs to add a sub message, " Check your connections Stupid!" With M27 now too close to the trees I decided to try NGC 7000, shooting with the 80 and guiding with the 127. PHD quickly calibrated my new guidestar. I never use the flattener with the 127 as it's field is flat almost to the edges to begin with. The Onyx however, starts giving linear stars a third of the way from each corner, and in my haste to salvage the night, I forgot to add the flattener. Anyway, here's my own personal best North America Nebula, 22 X 300 sec, 20 darks, 15 flats(shot using white T shirt at blue screen, flat screen TV), 15 bias frames, Stacked in DSS, processed in CS4, (just started using it, I'll never use Elements again now) Onyx, 500mm F/6.25 Canon 40D unmoddified, 800 ISO, no CLS filter (too much red noise banding)subject of a future post. -------------------- Warren Astro-Tech 127EDT Celestron Onyx 80ED Astro-Tech Field Flattener C8 (circa 1983 Orange Tube) Atlas EQ-G, Orion SSAG Canon 135mm F2.8 Canon 40D, Astronomik CLS clip filter Leica, Minolta binos Post Extras:       SGT500 Carpal Tunnel Reged: 10/03/06 Posts: 2921 Loc: Ny Re: My best NGC7000 and I forgot the d@#n flattene [Re: WarrenS]       #3407292 - 10/23/09 11:04 PM Edit   Reply   Quote Quick Reply   Thats a really Great shot Warren. with or without flattener id be happy with that shot -------------------- -Sal AstroTech Ritchey Chretien 8" Williams Optics Zenithstar 80 Orion Atlas Eq-G Hap Griffin Modified Canon Eos Xs (1000D) My Astrophotography Gallery My Sketch Gallery Post Extras:       WarrenS scholastic sledgehammer Reged: 03/04/08 Posts: 892 Loc: Orange County New York Re: My best NGC7000 and I forgot the d@#n flattene [Re: SGT500]       #3407357 - 10/23/09 11:43 PM Edit   Reply   Quote Quick Reply   Thanks Sal, having upgraded to CS4 from PS Elements made a bigger difference than I thought in the processing aspect. Now I just need to make a checklist to make sure all my equipment is connected and functioning! -------------------- Warren Astro-Tech 127EDT Celestron Onyx 80ED Astro-Tech Field Flattener C8 (circa 1983 Orange Tube) Atlas EQ-G, Orion SSAG Canon 135mm F2.8 Canon 40D, Astronomik CLS clip filter Leica, Minolta binos Post Extras:       s58y Postmaster Reged: 12/12/04 Posts: 5498 Loc: Eastern NY Re: My best NGC7000 and I forgot the d@#n flattene [Re: WarrenS]       #3407361 - 10/23/09 11:47 PM Edit   Reply   Quote Quick Reply   Excellent shot - it looks like your 80mm scope is better than mine without the flattener. -------------------- Hutech 30D, SBIG ST-402 autoguider SV80S, TV102iis Old camera lenses: 800mm f/5.6, 180mm f/3.4 AP900, Barndoor tracker http://www.pbase.com/s58y Post Extras:       WarrenS scholastic sledgehammer Reged: 03/04/08 Posts: 892 Loc: Orange County New York Re: My best NGC7000 and I forgot the d@#n flattene [Re: s58y]       #3407469 - 10/24/09 12:36 AM Edit   Reply   Quote Quick Reply   Thanks s58y, I'll still try not to forget the flattener going forward. -------------------- Warren Astro-Tech 127EDT Celestron Onyx 80ED Astro-Tech Field Flattener C8 (circa 1983 Orange Tube) Atlas EQ-G, Orion SSAG Canon 135mm F2.8 Canon 40D, Astronomik CLS clip filter Leica, Minolta binos Post Extras:       bryansay super member Reged: 02/25/09 Posts: 111 Loc: Georgetown, TX Re: My best NGC7000 and I forgot the d@#n flattene [Re: WarrenS]       #3407523 - 10/24/09 01:14 AM Edit   Reply   Quote Quick Reply   Looks great Warren. -------------------- Bryan Sayler Celestron C9.25; Orion ED80 HEQ-5; Orion ST-80 w/starshoot Nikon D80; Canon 40D Hap Griffin Mod Empty Wallet Post Extras:       Nils_Lars Post Laureate Reged: 01/04/08 Posts: 3410 Loc: Santa Cruz Mountains , CA Re: My best NGC7000 and I forgot the d@#n flattene [Re: bryansay]       #3407558 - 10/24/09 01:54 AM Edit   Reply   Quote Quick Reply   I agree with my ED80 and no flattener this would be a throw away shot but this looks really good and I wouldnt even have noticed. That Onyx is a nice scope , keep up the good work. -------------------- Erik Orion Atlas Self Hypertuned (EQMOD) Orion ED 80 Williams Optics VII reducer Celestron 8" SCT Orion Starshoot Autoguider PHD guide Canon 400D Hap Griffin Mod w/Baader filter Astronomik clip-in LP filter and 12nm Ha Stilleto CVF and Bahtinov mask Tamron 75-300mm&28-80mm lenses NexImage webcam http://www.flickr.com/photos/31986095@N05/ Post Extras:       WarrenS scholastic sledgehammer Reged: 03/04/08 Posts: 892 Loc: Orange County New York Re: My best NGC7000 and I forgot the d@#n flattene [Re: Nils_Lars]       #3408325 - 10/24/09 02:36 PM Edit   Reply   Quote Quick Reply   Thanks Erik and Bryan. The Onyx is a sharp little scope. Had I posted a larger image the linear stars would have been more evident. -------------------- Warren Astro-Tech 127EDT Celestron Onyx 80ED Astro-Tech Field Flattener C8 (circa 1983 Orange Tube) Atlas EQ-G, Orion SSAG 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 17 anonymous users are browsing this forum. 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