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Pages: 1 David Rosenthal Imager Extraordinaire Reged: 06/23/06 Loc: NJ Horse Head in Ha       #5642871 - 01/25/13 04:03 PM Attachment (24 downloads) Edit   Reply   Quote Quick Reply   It has been a couple of years since I shot the Horse Head and I really wanted to see how the SXV-H9 would fair on the 125SD. This is just under 5 hours of Ha taken over 2 nights from my backyard in North Jersey, just 20 miles outside NYC! Last night my focuser's temp probe read 9.1 degrees when I tore down. That is insane!!! 14*1200 AstroDon 5nm Ha Borg 125SD @ f/4.6 SXV-H9,SX Wheel, SX OAG, SX ExView Guide Camera Starlight Instruments Focus Boss II Losmandy G11 Gemini on an AstroPhysics AWT001 >>> LARGER VERSION HERE <<< Post Extras:       schmeah scholastic sledgehammer Reged: 07/26/05 Loc: Morristown, NJ Re: Horse Head in Ha [Re: David Rosenthal]       #5643289 - 01/25/13 08:17 PM Edit   Reply   Quote Quick Reply   I'd say it fairs quite well. Great detail on the larger version. 9 degrees? Brrrrrrrrr. So the focus boss has temp compensation? Gotta get me one of those, especially when imaging through the SCT. Derek Post Extras:       David Pavlich Transmographied Reged: 05/18/05 Loc: Mandeville, LA USA Re: Horse Head in Ha [Re: schmeah]       #5643519 - 01/25/13 10:53 PM Edit   Reply   Quote Quick Reply   That's good stuff, David! David Post Extras:       David Rosenthal Imager Extraordinaire Reged: 06/23/06 Loc: NJ Re: Horse Head in Ha [Re: schmeah]       #5643526 - 01/25/13 10:56 PM Edit   Reply   Quote Quick Reply   Thanks Derek! Yes it does have Temperature Compensation and it works real well, in both directions. This one is a joint venture between FeatherTouch and Optec. It uses FeatherTouch's standard focuser and MicroTouch stepper with Opetc's control box and software. I picked ip up at NEAF last year. I think I purchased the second one made. It really is a slick system. It links into MaximDL, through ASCOM, so I can use filter offsets to tweak focus when I switch R, G and B filters. Combine that with the temperature compensation and it is worry free. Post Extras:       Dean J. member Reged: 08/13/11 Loc: Vista, CA Re: Horse Head in Ha [Re: David Rosenthal]       #5643595 - 01/25/13 11:46 PM Edit   Reply   Quote Quick Reply   Sweet! That larger version is definitely worth a look. Great job. Post Extras:       NorthBoundTrain Carpal Tunnel Reged: 11/23/11 Re: Horse Head in Ha [Re: Dean J.]       #5643756 - 01/26/13 03:18 AM Edit   Reply   Quote Quick Reply   Very nice David! Post Extras:       Harel_Boren Vendor-The Boren-Simon PowerNewt Astrograph Reged: 03/15/09 Loc: Israel Re: Horse Head in Ha [Re: NorthBoundTrain]       #5643839 - 01/26/13 06:10 AM Edit   Reply   Quote Quick Reply   Well... it was worth the cold, that I can say. A very nice image, with great detail. It was worth it! Cheers, Harel Post Extras:       broca Pooh-Bah Reged: 03/26/10 Loc: Ocala, FL Re: Horse Head in Ha [Re: Harel_Boren]       #5644137 - 01/26/13 10:41 AM Edit   Reply   Quote Quick Reply   No doubt, the imaged posted on you web page is quite stunning. Well done! Post Extras:       kfir Simon Vendor-PowerNewt Reged: 09/21/10 Re: Horse Head in Ha [Re: broca]       #5644224 - 01/26/13 11:28 AM Edit   Reply   Quote Quick Reply   Hi David, Nice to see that the horsehead looks the same from NJ as from here (Israel)... Glad to see that the cold didn't change him... Great work - cold well spent! Cheers, Kfir Post Extras:       David Rosenthal Imager Extraordinaire Reged: 06/23/06 Loc: NJ Re: Horse Head in Ha [Re: kfir Simon]       #5647052 - 01/27/13 10:11 PM Edit   Reply   Quote Quick Reply   Thanks very much everyone!! I am real pleased with this one and I am glad you all liked it as well !!!! Post Extras:       Bill W. Carpal Tunnel Reged: 10/09/05 Loc: Western PA, USA Re: Horse Head in Ha [Re: David Rosenthal]       #5647139 - 01/27/13 10:58 PM Edit   Reply   Quote Quick Reply   WOW David! The detail on the horsehead is incredible. -Bill Post Extras:       J.P.M Post Laureate Reged: 11/14/06 Loc: 65"01'N25"47'E Re: Horse Head in Ha [Re: Bill W.]       #5647458 - 01/28/13 06:26 AM Edit   Reply   Quote Quick Reply   Stunning work. Post Extras:       Pages: 1

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