You are not logged in. [Login] Entrance · Main Index · Search · New user · Who's Online FAQ · Calendar

Astrophotography and Sketching >> CCD Imaging & Processing Previous   Index   Next   Threaded

Pages: 1 | 2 | 3 | 4 | 5 | (show all) orion69 professor emeritus Reged: 05/09/10 Loc: Croatia Re: Officina Stellare Veloce RH 200 First Light [Re: Harel_Boren]       #5630602 - 01/18/13 09:16 PM Edit   Reply   Quote Quick Reply   Quote: In fact, there's hardly any space to fit in OAG after the full imaging train is in place. We tried to use the TS OAG with it, and there was simply no place (which I could find) to fit in the guide camera (though the OAG took excatly the optimal space). How is that possible if backfocus is 70 mm? With my current reducer I have to maintain 55mm distance with OAG+filter wheel+camera and I have no problem with that. I use TSOAG9 with Lodestar and guiding camera is not in the way. Can you post picture of your image train? I had bad experiences with guiding through another scope and I will never do that again. Post Extras:       orion69 professor emeritus Reged: 05/09/10 Loc: Croatia Re: Officina Stellare Veloce RH 200 First Light [Re: orion69]       #5630617 - 01/18/13 09:28 PM Edit   Reply   Quote Quick Reply   Just saw your setup, was RH200 in focus on those pictures? I'll upload my setup tomorrow to compare... Btw, your guiding was indeed perfect, and ability to maintain focus with large temperature drop is fantastic! How precise is manual focusing (without motor) with bahtinov mask? Is there difference to motor focusing? Post Extras:       Gleason journeyman Reged: 01/03/13 Re: Officina Stellare Veloce RH 200 First Light [Re: orion69]       #5630810 - 01/18/13 11:30 PM Edit   Reply   Quote Quick Reply   Quote: Just saw your setup, was RH200 in focus on those pictures? I'll upload my setup tomorrow to compare... Btw, your guiding was indeed perfect, and ability to maintain focus with large temperature drop is fantastic! How precise is manual focusing (without motor) with bahtinov mask? Is there difference to motor focusing? Yes, the telescope was at focus in the photo. Distance between the flat field corrector lens and array is important. OS will provide the necessary camera adapter. Motor focus provides a more precise method to achieving focus in very shallow depth of field at f/3. I have never used a bahtinov mask. OS is now offering special pricing on the RH200. Post Extras:       Harel_Boren Vendor-The Boren-Simon PowerNewt Astrograph Reged: 03/15/09 Loc: Israel Re: Officina Stellare Veloce RH 200 First Light [Re: orion69]       #5631032 - 01/19/13 04:24 AM Edit   Reply   Quote Quick Reply   Quote: Just saw your setup, was RH200 in focus on those pictures? I'll upload my setup tomorrow to compare... Btw, your guiding was indeed perfect, and ability to maintain focus with large temperature drop is fantastic! How precise is manual focusing (without motor) with bahtinov mask? Is there difference to motor focusing? Thanks Knez, We use a pre-prepared Bhatinov Mask, which we've prepared to spec (focal length, etc.) and had laser cut from fiberglass. We tried focusing without a motor focus, using the Bhatinov mask, and we find it near impossible to reach the required +/- 20 micron zone, which is the calculated Critical Focus Zone (CFZ) for this short focal length telescope. With the motorfocus is was a walk in the park - took me about 60 seconds to reach perfect focus (+2.6 mircon). Let's move this discussion to the 2nd Light post on this page, since it has much more measured data to rely on. Cheers, Harel Post Extras:       rimassimo Vendor (OfficinaStellare) Reged: 04/17/09 Re: Officina Stellare Veloce RH 200 First Light [Re: Gleason]       #5660508 - 02/03/13 06:15 PM Edit   Reply   Quote Quick Reply   Hi John, Harel and All, I'm Massimo Riccardi. It's a real pleasure to see on the net a lot of beautiful images taken with my Veloce RH200.My compliments for your works. I spent several years of my life for developing the Riccardi-Honders scheme so I'm very gratified to see fine images and satisfied users. I just finished to design another Riccardi-Honders system slightly different from the Veloce RH200. It is a 250 mm diameter with a longer focal lenght ,1400mm operating at f/5.6 and with long backfocus (about 280 mm). The performances are very high: diffraction limited from the center to the edge of a 60 mm diameter flat field. So ,for those interested to longer focal lenght and high.performances , this new Officina Stellare "baby" will be available soon. Regards. Massimo Riccardi Post Extras:       Harel_Boren Vendor-The Boren-Simon PowerNewt Astrograph Reged: 03/15/09 Loc: Israel Re: Officina Stellare Veloce RH 200 First Light [Re: rimassimo]       #5661524 - 02/04/13 11:00 AM Edit   Reply   Quote Quick Reply   Quote: Hi John, Harel and All, I'm Massimo Riccardi. It's a real pleasure to see on the net a lot of beautiful images taken with my Veloce RH200.My compliments for your works. I spent several years of my life for developing the Riccardi-Honders scheme so I'm very gratified to see fine images and satisfied users. I just finished to design another Riccardi-Honders system slightly different from the Veloce RH200. It is a 250 mm diameter with a longer focal lenght ,1400mm operating at f/5.6 and with long backfocus (about 280 mm). The performances are very high: diffraction limited from the center to the edge of a 60 mm diameter flat field. So ,for those interested to longer focal lenght and high.performances , this new Officina Stellare "baby" will be available soon. Regards. Massimo Riccardi Thanks Massimo, First thanks for these kind words! Secondly, it's very good to know you are working on another masterpiece... Please do let us know where does development stand, and when the product is indeed due on the market. My many thanks again, All the best, Harel Post Extras:       Pages: 1 | 2 | 3 | 4 | 5 | (show all)

Previous   Index   Next   Threaded

Extra information 23 registered and 19 anonymous users are browsing this forum. Moderator:  Oldfield, bilgebay  Print Thread Forum Permissions       You cannot start new topics       You cannot reply to topics       HTML is disabled       UBBCode is enabled Thread views: 4748 Jump to *Announcements and News* -----   Cloudy Nights Announcements   Discussion of CN Articles, Reviews, and Reports   Celestial Events*General Astronomy* -----   Beginners Forum   General Observing and Astronomy   Outreach   Light Pollution*Equipment Discussions* -----   ATM, Optics and DIY Forum   Binoculars   Binoviewers   Cats & Casses   Classic Telescopes   Equipment   Eyepieces   Mounts   Observatories   Reflectors   Refractors    Video and Electronically Assisted Astronomy*Astrophotography and Sketching* -----   Beginning and Intermediate Imaging   Film Astrophotography   DSLR & Digital Camera Astro Imaging & Processing   CCD Imaging & Processing   Solar System Imaging & Processing   Sketching   Astro Imaging/Sketching Contest *Observing* -----   NEO   Planetary and Solar System Observing   Lunar Observing   Deep Sky Observing   Double Star Observing   Solar   Variable Star Observing and Radio Astronomy*Telescope Specific Forums* -----   Celestron NexStar    NexStar GPS / CPC Telescopes   Questar Forum   Meade ACF/RCX / LX / GPS    Meade ETX*Speciality Forums* -----   Arizona Science and Astronomy Expo   NEAF (Northeast Astronomy Forum) and NEAIC (Northeast Astro Imaging Conference)   AstroArt   Astronomy Clubs and Star Parties   Astronomy Software & Computers   AstroWebsites   Science! Astronomy & Space Exploration, and Others   Space Rocks   Stellar Media*Swap and Shop* -----   Shop and Swap Audio Components*CN Feedback and Vendor Announcements* -----   Vendor and Group Announcements*International Year of Astronomy 2009 - Forums are now closed.* -----   IYA Archive Info

CN Forums Home