· 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 >> Binoviewers Previous   Index   Next   Threaded   Pages: 1 twhite Pooh-Bah Reged: 01/28/06 Loc: Broken Arrow, Oklahoma, USA Denkmeier I accessories question... I've forgotten       #4897977 - 11/04/11 08:17 PM Edit   Reply   Quote Quick Reply   I have a Denk I system customized with Borg helical focusers that I don't use very much... need to correct that. However, I've forgotten what the three 'accessory' lenses I have do... or at least I think I have. Oh, and this is all 1.25", by the way. I may buy a 2" nosepiece and accessories at some point, but not yet. One is not marked that appears to be a straight telenegative amplifier. One is marked "S" and appears very similar to the unmarked one. One is marked "Refractor OCS" and is very different. I believe this is simply a relay lens like most OCSs -- provides slight magnication but mostly allows the binoviewer to be used in non-shortened optical systems at something approaching prime power (1.2x, if I read it right). I tried doing a little searching on Denkmeier's site but found nothing specific to these products. Of course, they're old enough now that they probably no longer even sell them. As a completely off-the-wall side question -- has anyone ever tried to use an old thread-on Rich Field Adapter like the Vixen-made f/5 to increase the FOV? I have one that threads on to the Denk but I've never tried it. I'm going to try to get back to doing more binoviewing -- my big scope isn't set up for it currently, but one of my planned projects for the coming year is a complete rebuild of the structure that will allow binoviewing, for one thing (the other being an adaptation for StellarCAT). Hate to sound like such a n00b but it's been years since I've used them and I just flat forgot what they all do... Thanks, Tony Post Extras:       faackanders2 Pooh-Bah Reged: 03/28/11 Re: Denkmeier I accessories question... I've forgotten [Re: twhite]       #4898102 - 11/04/11 10:12 PM Edit   Reply   Quote Quick Reply   Obviously the refractor OCS works for refractors (only) and powers should be listed on the denk site. I have the "S" OCS and it works with my solar max 40 in front of the diagonal, and it also works with a 1.25" (~3" LONG) tube extension FOR MY 1.25" fOCUSER IN my 10" Dobsonian reflector (at 1.4x, 2.0x, and 2.5x with my power switches) Post Extras:       rick rian Seeker of Truth(s) Reged: 08/03/04 Loc: Upper Mid West Re: Denkmeier I accessories question... I've forgotten [Re: faackanders2]       #4898173 - 11/04/11 11:03 PM Edit   Reply   Quote Quick Reply   Hi Tony, See the Bigeasy manual. The Denk standard, Bigeasy, and Denk I are essentially the same unit. I think you'll find the info you need if you scroll through the manual. I hope this helps. Post Extras:       twhite Pooh-Bah Reged: 01/28/06 Loc: Broken Arrow, Oklahoma, USA Re: Denkmeier I accessories question... I've forgotten [Re: rick rian]       #4898243 - 11/05/11 12:03 AM Edit   Reply   Quote Quick Reply   Rick, Thanks; I looked at a few things but not the Big Easy, I guess. I may be calling Denkmeier on Monday as I think I'm needing some parts that I don't have, like the spacer tube. Post Extras:       EdZ Professor EdZ Reged: 02/15/02 Loc: Cumberland, R I , USA42N71.4W Re: Denkmeier I accessories question... I've forgotten [Re: twhite]       #4902086 - 11/07/11 06:44 AM Edit   Reply   Quote Quick Reply   I answered this 3-4 years ago and found it. Copied it here. This relates to all the 1.25" parts: put the parts together in this order body + 1st part that screws into body + next + next It is important to differentiate between the OCS (the OCS has the Denkmeier emblem embossed on it) and the optical nose (has the 0 embossed on it). SCT The body + optical nose (1.25" part 0) is a "reducer" for use in the SCT. States 0.66x. Mine comes out to be 0.8x. The body + hollow nose (hollow sleeve) is approx 1.25x in an SCT. States 1.15x. Mine comes out to 1.27x. The body + hollow nose + OCS (Denk emblem) is approx 2.25x in an SCT. NEWTONIAN The body + optical nose + spacer + OCS is approx 1.4x in an Newt. The Hollow nose + spacer + OCS is approx 2.5x in a Newt. REFRACTOR If using a 1.25" diagonal in your refractor then these combinations apply: (Denk body + optical nose "O") inserted into (1.25" diagonal + OCS) = stated 1.4x (Denk body + hollow nose) inserted into (1.25" diagonal + OCS) = stated 2.5x The following relates to the 2" T and the 1.25" OCS in the 2" diagonal screwed into the front of the diagonal Generally these arrangements are for a refractor. with the OCS screwed onto the T and OCS facing INSIDE the diag when the T is attached to the diagonal, = Lower power option with the OCS screwed onto the T and OCS facing OUTSIDE the diag when the T is attached to the diagonal, = Higher power option When using the T in a 2" diagonal, the BV would then be used with the hollow nose (body + hollow nose) inserted behind "into" the diagonal just like eyepieces. In a 2" diagonal all the power changes are out in front of the diagonal. There is no part S or part SR with the Denk Standard or the Denk Big Easy, only the parts I listed above. There is a part S, but I'd have to refer you to the instructions for its proper use. I think part S is used in shortened refractors in lieu of the OCS. But you'd still need to see its proper location in the instruction sheets. edz Post Extras:       twhite Pooh-Bah Reged: 01/28/06 Loc: Broken Arrow, Oklahoma, USA Re: Denkmeier I accessories question... I've forgotten [Re: EdZ]       #4905257 - 11/08/11 08:58 PM Edit   Reply   Quote Quick Reply   Ed -- that's perfect. Thanks very much! Post Extras:       faackanders2 Pooh-Bah Reged: 03/28/11 Re: Denkmeier I accessories question... I've forgotten [Re: EdZ]       #4905558 - 11/09/11 12:17 AM Edit   Reply   Quote Quick Reply   Part S is for Solarmax and you put it in front of the diagonal to be able to get binoviewer to focus, without any other extension. This S part can also be used in a 1.25" newtonian focuser with a 3" extension between it and the binoviewer. Post Extras:       Pages: 1 Previous   Index   Next   Threaded   Extra information 1 registered and 2 anonymous users are browsing this forum. Moderator:  Geo557, panhard  Print Thread Forum Permissions       You cannot start new topics       You cannot reply to topics       HTML is disabled       UBBCode is enabled Thread views: 673 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

Cloudy Nights LLC Cloudy Nights Sponsor: Astronomics