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[Login] Forum Archives · Entrance · Main Index · Search · New user · Who's Online FAQ · Calendar Astrophotography and Sketching >> Beginning and Intermediate Imaging Previous   Index   Next   Threaded   Pages: 1 Gregk Pooh-Bah Reged: 11/19/06 Posts: 1454 Loc: Gilbert Arizona Any one using a Meade AR-5 or AR-6 to image with w       #3193572 - 07/01/09 06:01 PM Edit   Reply   Quote Quick Reply   Sounds crazy but I was considering buying a used Meade AR-5 for imaging and using a minus violet filter to remove some of the CA...Any examples of this out there or for that matter any other make/brand of Acromatic being used for AP work Thanks Greg -------------------- www.azspaceblog.com/ Orion Star Shoot Pro OSC Oiron Star Shoot II OSC Celestron Cg-5 ASGT mount Celestron ED80 Piggy back with william Optics 66mm APO Celestron 6" SCT Piggy Back with william Optics 66mm APO Post Extras:       ScopenChuck super member Reged: 11/04/04 Posts: 147 Loc: Billings, Montana Re: Any one using a Meade AR-5 or AR-6 to image with w [Re: Gregk]       #3194286 - 07/02/09 12:49 AM Attachment (22 downloads) Edit   Reply   Quote Quick Reply   Just did these the other night. Meade AR5 with focal reducer on LXD75 mount. DSI II color. 30 second exposures. Processed with Nebulosity M8 -------------------- 16" f/6 truss tube ( still working on it) 10" f/4.5 Meade Starfinder Eq 6" f/8 Criterion Dynascope (1970 & 1974) 5" f/9 Meade LXD75 60mm Meade ETX Box of spare parts Chuck Edited by ScopenChuck (07/02/09 11:20 PM) Post Extras:       ScopenChuck super member Reged: 11/04/04 Posts: 147 Loc: Billings, Montana Re: Any one using a Meade AR-5 or AR-6 to image with w [Re: ScopenChuck]       #3194288 - 07/02/09 12:52 AM Attachment (19 downloads) Edit   Reply   Quote Quick Reply   M20 -------------------- 16" f/6 truss tube ( still working on it) 10" f/4.5 Meade Starfinder Eq 6" f/8 Criterion Dynascope (1970 & 1974) 5" f/9 Meade LXD75 60mm Meade ETX Box of spare parts Chuck Post Extras:       ScopenChuck super member Reged: 11/04/04 Posts: 147 Loc: Billings, Montana Re: Any one using a Meade AR-5 or AR-6 to image with w [Re: ScopenChuck]       #3194290 - 07/02/09 12:52 AM Attachment (19 downloads) Edit   Reply   Quote Quick Reply   M27 -------------------- 16" f/6 truss tube ( still working on it) 10" f/4.5 Meade Starfinder Eq 6" f/8 Criterion Dynascope (1970 & 1974) 5" f/9 Meade LXD75 60mm Meade ETX Box of spare parts Chuck Post Extras:       mark Jimenez sage Reged: 01/08/07 Posts: 339 Loc: Atlanta GA. Re: Any one using a Meade AR-5 or AR-6 to image with w [Re: ScopenChuck]       #3194929 - 07/02/09 11:51 AM Edit   Reply   Quote Quick Reply   Chuck, Those are great shots!! for any scope! and with thirty second exposures! I had no idea an achro with minus violet filter could do so well with a color imager. Ive always wished I could use an Orion ST 120 with a M.V. filter. Does anyone know if this has been tried? -Mark -------------------- Celestron ASGT Astro Tech 8" f4 Newt QHY8 Meade DSI pro Post Extras:       Gregk Pooh-Bah Reged: 11/19/06 Posts: 1454 Loc: Gilbert Arizona Re: Any one using a Meade AR-5 or AR-6 to image with w [Re: Gregk]       #3194971 - 07/02/09 12:22 PM Edit   Reply   Quote Quick Reply   Hi Chuck, Thanks That's very impressive...did you use any Photoshop actions in addition to remove any halos.... Also I typically go out to 3 or 4 minutes of exposure Can I stack for instance a LP Filter (ex. Lumicon Sky Glow)with a Minus Violet with sucess... Greg -------------------- www.azspaceblog.com/ Orion Star Shoot Pro OSC Oiron Star Shoot II OSC Celestron Cg-5 ASGT mount Celestron ED80 Piggy back with william Optics 66mm APO Celestron 6" SCT Piggy Back with william Optics 66mm APO Post Extras:       Gregk Pooh-Bah Reged: 11/19/06 Posts: 1454 Loc: Gilbert Arizona Re: Any one using a Meade AR-5 or AR-6 to image wi [Re: mark Jimenez]       #3195060 - 07/02/09 01:12 PM Edit   Reply   Quote Quick Reply   Hi Mark, The Ca presence is due to aperture size and if the focal length is short resulting in a a faster scope then the ca will get more Prominent Greg Edited by Gregk (07/02/09 04:27 PM) Post Extras:       Richard Turner member Reged: 01/25/09 Posts: 58 Loc: NC Re: Any one using a Meade AR-5 or AR-6 to image with w [Re: Gregk]       #3195377 - 07/02/09 03:54 PM Edit   Reply   Quote Quick Reply   The AR-5 is a much lighter optical tube. I've had both the AR-5 and AR-6 (I currently have an Ar-5). The Ar-6 is a heavy scope (about 24 pounds). The Ar-5 is only 15 pounds. Also, my Ar-5 is f/9.3, while the Ar-6 is f/8. I have less chromatism with my Ar-5 than I had with the Ar-6. -------------------- Richard Barton Turner Post Extras:       Gregk Pooh-Bah Reged: 11/19/06 Posts: 1454 Loc: Gilbert Arizona Re: Any one using a Meade AR-5 or AR-6 to image with w [Re: Richard Turner]       #3195595 - 07/02/09 05:51 PM Edit   Reply   Quote Quick Reply   Thanks Richard...Sounds like the AR-5 is teh better way to go. I don't like heavy...greg -------------------- www.azspaceblog.com/ Orion Star Shoot Pro OSC Oiron Star Shoot II OSC Celestron Cg-5 ASGT mount Celestron ED80 Piggy back with william Optics 66mm APO Celestron 6" SCT Piggy Back with william Optics 66mm APO Post Extras:       ScopenChuck super member Reged: 11/04/04 Posts: 147 Loc: Billings, Montana Re: Any one using a Meade AR-5 or AR-6 to image with w [Re: Gregk]       #3196166 - 07/02/09 11:17 PM Edit   Reply   Quote Quick Reply   Thanks for the comments. Looking back I see that I did not have my Minus Violet filter in. The image train was as follow's. AR5 telescope - focal reducer - IR filter - DSI II color camera. Used Envisage to capture. Saved as BMP. Processed with Nebulosity which I just purchased that same night. Had no idea what I was doing. Still need to read manual. There is an action in Nebulosity to tighten stars which does seem to help. The only halos I seem to get are from very bright stars but I do not find them to be a problem. -------------------- 16" f/6 truss tube ( still working on it) 10" f/4.5 Meade Starfinder Eq 6" f/8 Criterion Dynascope (1970 & 1974) 5" f/9 Meade LXD75 60mm Meade ETX Box of spare parts Chuck Post Extras:       Pages: 1 Previous   Index   Next   Threaded   Extra information 4 registered and 5 anonymous users are browsing this forum. 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