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 >> Binoculars Previous   Index   Next   Flat   brentwood professor emeritus Reged: 11/04/05 Posts: 702 Loc: BC Canada Re: Hensoldt 8x30 Fero D16 binoculars       07/01/08 11:57 AM Edit   Reply   Quote   Quick Reply:   I buy a lot of binoculars in pawn and junk shops. A quick and easy test of collimation is to look at something distant that really stands out from the background, like the writing on a distant shop sign, traffic sign, or even a single tree on the horizon. Once you have found the object, slowly move the binoculars away from your face, while still looking at the object. This makes it more difficult for the brain to 'force' the two images together, and they will separate if the collimation is out. You will get eyestrain, or at least feel uncomfortable if the error makes the images appear VERTICALLY displaced from each other and also if the images displace HORIZONTALLY, so that your eyes have to DIVERGE. The eyes can tolerate some Convergence, as this is what we do when we look at a very close object. -------------------- Big telescope.Small telescopes. Ridiculous binocular collection I've cut it twice and it's still too short. Post Extras       Entire thread Subject Posted by Posted on Hensoldt 8x30 Fero D16 binoculars gaute 06/28/08 12:51 PM Re: Hensoldt 8x30 Fero D16 binoculars Rich V.   06/28/08 05:37 PM Re: Hensoldt 8x30 Fero D16 binoculars gaute   06/30/08 05:47 PM Re: Hensoldt 8x30 Fero D16 binoculars Rich V.   07/01/08 12:29 AM Re: Hensoldt 8x30 Fero D16 binoculars gaute   07/14/08 03:43 PM Re: Hensoldt 8x30 Fero D16 binoculars brentwood   07/01/08 11:57 AM Re: Hensoldt 8x30 Fero D16 binoculars gaute   07/14/08 03:37 PM Extra information 5 registered and 11 anonymous users are browsing this forum. Moderator:  EdZ  Forum Permissions       You cannot start new topics       You cannot reply to topics       HTML is disabled       UBBCode is enabled Rating: Thread views: 586 Calendar Event: 06/28/08 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 CN Forums Home

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