· Get a Cloudy Nights T-Shirt · Submit a Review / Article Click here if you are having trouble logging into the forums 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] Entrance · Main Index · Search · New user · Who's Online FAQ · Calendar Equipment Discussions >> Reflectors Previous   Index   Next   Threaded   Pages: 1 cloud_cover sage Reged: 08/17/10 Loc: Restaurant at the End of the U... Howie Glatter Holographic Attachment?       #5650280 - 01/29/13 01:05 PM Edit   Reply   Quote Quick Reply   I've finally gotten round to installing the optics into my new scope but the centering of the secondary frustrates me in that I'm not sure its actually centered in my focuser. Now I've got teary eyes from squinting down a sight tube. Do you folks think the Howie Glatter Holographic Attachment that produces a grid pattern over the secondary is a good idea? I'm thinking of getting the BLUG anyway Thanks for your thoughts! Post Extras:       Jason D Postmaster Reged: 10/21/06 Loc: California Re: Howie Glatter Holographic Attachment? [Re: cloud_cover]       #5650576 - 01/29/13 03:28 PM Edit   Reply   Quote Quick Reply   Check the information in this thread http://www.cloudynights.com/ubbthreads/showflat.php/Cat/0/Board/reflectors/Nu... Jason Post Extras:       stratocaster sage Reged: 10/27/11 Re: Howie Glatter Holographic Attachment? [Re: Jason D]       #5650732 - 01/29/13 04:51 PM Edit   Reply   Quote Quick Reply   You may also want to see this. I had the same question on using the holographic attachment. Post Extras:       Mark Peterman super member Reged: 08/07/12 Loc: Texas Re: Howie Glatter Holographic Attachment? [Re: Jason D]       #5650735 - 01/29/13 04:54 PM Edit   Reply   Quote Quick Reply   While I can't answer your question, I have had the same experience. What I found easiest is when you can center the secondary under the focuser while the primary mirror is out of the scope. It just makes things easier to see and what you see makes more sense. If you don't want to remove the primary, simply hang a white piece of paper behind the secondary so that it blocks the reflection from the primary. Doing it this way, there is no need for a white piece of paper on the opposite side of the focuser. The dark contrast of the tube and the white reflection of the paper in the secondary mirror makes it clear as night and day to see how centered and round the secondary is. Post Extras:       starman345 Wait, I'm Thinking Reged: 07/06/10 Loc: New Brunswick, Canada Re: Howie Glatter Holographic Attachment? [Re: Mark Peterman]       #5651062 - 01/29/13 08:03 PM Edit   Reply   Quote Quick Reply   I don't have Howie's holographic attachment so I can't help you there but I"m wondering if you have tried pulling your sight tube as far back in the focuser as possible? I have to set mine that way before I can see the edges of the secondary, once at that point its easy to center it. Post Extras:       Pages: 1 Previous   Index   Next   Threaded   Extra information 16 registered and 13 anonymous users are browsing this forum. Moderator:  Jarad, ausastronomer, okieav8r  Print Thread Forum Permissions       You cannot start new topics       You cannot reply to topics       HTML is disabled       UBBCode is enabled Thread views: 470 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

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