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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)

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