· 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 >> Refractors Previous   Index   Next   Threaded   Pages: 1 mgwhittle scholastic sledgehammer Reged: 08/24/11 Loc: Chattanooga, TN Meade 178ed new lens cell versus old?       #5424746 - 09/17/12 01:22 AM Edit   Reply   Quote Quick Reply   I know that Meade at some point began offering replacement lens cells for their 178mm ED refractors to correct the problems with the original cell. Does anyone know how to identify the new supposedly better cell from the original problematic one? Post Extras:       Eric P sage Reged: 04/04/05 Re: Meade 178ed new lens cell versus old? [Re: mgwhittle]       #5424956 - 09/17/12 08:00 AM Edit   Reply   Quote Quick Reply   The newer cells have three radial set screws to apply pressure to a spacer ring located between the lens elements. If you are planning to purchase a 152/178ED then you will also need to inspect the spacer ring to make sure it has not been deformed by 'aggressive' tightening of the set screws. Meade Refractor Collimation Edited by Eric P (09/17/12 08:01 AM) Post Extras:       mgwhittle scholastic sledgehammer Reged: 08/24/11 Loc: Chattanooga, TN Re: Meade 178ed new lens cell versus old? [Re: Eric P]       #5425037 - 09/17/12 09:18 AM Edit   Reply   Quote Quick Reply   Thank you Eric, that is the information I need! Post Extras:       Pages: 1 Previous   Index   Next   Threaded   Extra information 36 registered and 40 anonymous users are browsing this forum. Moderator:  Jason B, Scott in NC, Bowmoreman, KWB  Print Thread Forum Permissions       You cannot start new topics       You cannot reply to topics       HTML is disabled       UBBCode is enabled Thread views: 485 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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