Click here if you are having trouble logging into the forums Cloudy Nights - Official Forums of the 2009 International Year of Astronomy 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 >> Eyepieces Previous   Index   Next   Flat   Phillip Creed Idiot Seeking Village Reged: 07/25/06 Posts: 1033 Loc: NE Ohio 31T5 vs. 31mm Axiom LX TFOV?       08/08/08 12:02 AM Edit   Reply   Quote   Quick Reply:   For those that have been able to do a direct comparison between the 31mm Type 5 Nagler and the new Celestron 31mm Axiom LX, what are the differences, if any, in true field of view? Looking at Televue's website, it appears the 31T5 has a 42mm field stop. But I'm guessing there's pincushion distortion, because (42)/(31)*180/pi = 77.6 deg, not 82-deg. Thoughts from those that have compared these titanic eyepieces? Clear Skies, Phil -------------------- "Why suffer from insanity when you can revel in it?" Wilderness Center Astronomy Club member since 1995 ICQ Comet Observer Code: CRE01 ***** 16" f/4.5 Truss Dobsonian (FOR SALE!!) Orion 120mm ST Refractor 23mm Axiom LX 13mm Nagler Type 6 9mm Nagler Type 6 1.75X Siebert Barlow ***** Post Extras       Entire thread Subject Posted by Posted on 31T5 vs. 31mm Axiom LX TFOV? Phillip Creed 08/08/08 12:02 AM Re: 31T5 vs. 31mm Axiom LX TFOV? Lamb0   08/08/08 02:10 AM Re: 31T5 vs. 31mm Axiom LX TFOV? polaristom   08/09/08 03:15 AM Extra information 22 registered and 16 anonymous users are browsing this forum. Moderator:  Greg K., Jason B, csa/montana  Forum Permissions       You cannot start new topics       You cannot reply to topics       HTML is disabled       UBBCode is enabled Rating: Thread views: 133 Jump to *International Year of Astronomy 2009* -----   Global Coordination   Cornerstone Projects   Special Projects   Special Task Groups   Global Activities   National and Regional Activities   IYA 2009 in Africa   IYA 2009 in the USA*Announcements and News* -----   Cloudy Nights Announcements   Discussion of CN Articles, Reviews, and Reports   Beginners Forum   Celestial Events   Light Pollution*Equipment Discussions* -----   ATM, Optics and DIY Forum   Binoculars   Binoviewers   Cats & Casses   Classic Telescopes   Equipment   Eyepieces   Mounts   Observatories   Reflectors   Refractors    Celestron SkyScout and Meade mySky   Video and Electronically Assisted Astronomy*Astrophotography and Sketching* -----   Beginning Imaging   Film Astrophotography   DSLR & Digital Camera Astro Imaging & Processing   CCD Imaging & Processing   Solar System Imaging & Processing   Sketching   Astro Imaging/Sketching Contest *Observing* -----   General Observing   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*Other* -----   Science of Astronomy & Space exploration   AstroWebsites   Space Rocks*Speciality Forums* -----   AstroArt   Astronomy Software & Computers   Stellar Media   Astro Outreach, Clubs and Star Parties*CN Feedback and Vendor Announcements* -----   Vendor and Group Announcements Home

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