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[Login] Entrance · Main Index · Search · New user · Who's Online FAQ · Calendar Equipment Discussions >> Binoculars Previous   Index   Next   Threaded   Pages: 1 | 2 | (show all) cota_scope sage Reged: 05/16/04 Posts: 356 Loc: sioux city ia budget astro chair       #1131332 - 09/04/06 10:56 AM Attachment (84 downloads) Edit   Reply   Quote Quick Reply   got this office chair at a target store on sale for 39.95,it tilts moves up and down and swivels and is very comfortable,i added the elbow rest. see link http://www.target.com/gp/detail.html/ref=br_1_1/602-8186398-2516602?%5Fencoding=UTF8&frombrowse=1&asin=B0006Z42GW regards john Edited by cota_scope (09/04/06 11:01 AM) Post Extras:       cota_scope sage Reged: 05/16/04 Posts: 356 Loc: sioux city ia Re: budget astro chair [Re: cota_scope]       #1131335 - 09/04/06 11:01 AM Attachment (69 downloads) Edit   Reply   Quote Quick Reply   more pictures Edited by cota_scope (09/04/06 11:02 AM) Post Extras:       Jim7728 Post Laureate Reged: 04/10/05 Posts: 4009 Loc: Stoop Landing Observatory, NYC Re: budget astro chair [Re: cota_scope]       #1131416 - 09/04/06 11:50 AM Edit   Reply   Quote Quick Reply   Looks comfortable! -------------------- Jim TV-76 -40mmHa/5mm BF Vixen NA-140 Post Extras:       Glassthrower Vendor - Galactic Stone & Ironworks Reged: 04/07/05 Posts: 14686 Loc: Hurricane Alley Re: budget astro chair [Re: Jim7728]       #1131424 - 09/04/06 11:55 AM Edit   Reply   Quote Quick Reply   Great idea. What are elbow rests made of and what did you use to attach them? Clear dark skies... MikeG -------------------- Michael Gilmer - Member of the Meteoritical Society & Collector of Falling Stars. Galactic Stone & Ironworks - Buy/Sell/Trade Meteorites, Moon Rocks, Mars Rocks, & 35 different falls and types! Post Extras:       cota_scope sage Reged: 05/16/04 Posts: 356 Loc: sioux city ia Re: budget astro chair [Re: Glassthrower]       #1131447 - 09/04/06 12:10 PM Edit   Reply   Quote Quick Reply   mike i cut up a old metal lawn chair and fasten them on the bolts on the side and used foam for the elbow rest, but you can also drill a hole in the arm rest and use wood blocks about 6" long and use soft padding for the ends. john Post Extras:       charen scholastic sledgehammer Reged: 05/28/05 Posts: 786 Loc: New Zealand Re: budget astro chair [Re: cota_scope]       #1132501 - 09/05/06 12:17 AM Edit   Reply   Quote Quick Reply   Interesting concept - is there any way of attaching some form of 'A' frame, say made from light aluminium, to the arm rests and then attaching the binos to that ? Just a thought. -------------------- 35 binos. 80mm Cat. WO66ED SV NH 80mm / EQ3 Meade 8in.LX90 Skywatcher Equinox ED120 / Goto HEQ5. Post Extras:       cota_scope sage Reged: 05/16/04 Posts: 356 Loc: sioux city ia Re: budget astro chair [Re: charen]       #1132536 - 09/05/06 12:49 AM Attachment (45 downloads) Edit   Reply   Quote Quick Reply   i have 2 couchpotato chairs for that, wanted to keep this one portable Post Extras:       Glassthrower Vendor - Galactic Stone & Ironworks Reged: 04/07/05 Posts: 14686 Loc: Hurricane Alley Re: budget astro chair [Re: cota_scope]       #1132782 - 09/05/06 08:50 AM Edit   Reply   Quote Quick Reply   Wow, what the heck is that monster on the far right with the set of handlebars attached to it? Clear dark skies... MikeG -------------------- Michael Gilmer - Member of the Meteoritical Society & Collector of Falling Stars. Galactic Stone & Ironworks - Buy/Sell/Trade Meteorites, Moon Rocks, Mars Rocks, & 35 different falls and types! Post Extras:       rushintuit sage Reged: 04/01/06 Posts: 263 Loc: Farpoint Observatory Re: budget astro chair [Re: cota_scope]       #1132804 - 09/05/06 09:11 AM Edit   Reply   Quote Quick Reply   Who am I to post in your presence! -------------------- /// Stellarvue SV102ED /// Nikon 12x50 /// Fujinon 16x70 /// SkyTools 2 /// The Desktop Universe All Sky CCD Mosaic In Monochrome Mode /// Post Extras:       cota_scope sage Reged: 05/16/04 Posts: 356 Loc: sioux city ia Re: budget astro chair [Re: Glassthrower]       #1132861 - 09/05/06 10:16 AM Attachment (32 downloads) Edit   Reply   Quote Quick Reply   mike thats my home made 120mm f5 binoculars made from 2 orion 120mm OTA. regards john Post Extras:       Glassthrower Vendor - Galactic Stone & Ironworks Reged: 04/07/05 Posts: 14686 Loc: Hurricane Alley Re: budget astro chair [Re: cota_scope]       #1132880 - 09/05/06 10:31 AM Edit   Reply   Quote Quick Reply   John - WOW. Have you ever written article about that beast? I'd be interested to learn more about it - how it was built, what parts you used, and how it performs. Is that an old porro-binocular body attached to the focuser? And what kind of eyepieces are those? I had no idea you were such a binocular surgeon! Or should I say, mad scientist! Clear dark skies... MikeG -------------------- Michael Gilmer - Member of the Meteoritical Society & Collector of Falling Stars. Galactic Stone & Ironworks - Buy/Sell/Trade Meteorites, Moon Rocks, Mars Rocks, & 35 different falls and types! Post Extras:       cota_scope sage Reged: 05/16/04 Posts: 356 Loc: sioux city ia Re: budget astro chair [Re: Glassthrower]       #1132918 - 09/05/06 10:52 AM Attachment (33 downloads) Edit   Reply   Quote Quick Reply   Mike for the back i took apart a ex.wide angle binocular with large bak4 prisms and attached 2" barrels and 1 1/4" eyepiece holders.for the eyepieces i made from the Oberwerk 25/40x100mm using there 24mm eyepiece which has about a 70 to 72 degree field without having any vignetting.but i can use any eyepiece. Edited by cota_scope (09/05/06 10:53 AM) Post Extras:       Glassthrower Vendor - Galactic Stone & Ironworks Reged: 04/07/05 Posts: 14686 Loc: Hurricane Alley Re: budget astro chair [Re: cota_scope]       #1132926 - 09/05/06 11:00 AM Edit   Reply   Quote Quick Reply   Wow, John, that is an impressive beast. Can the IPD can be adjusted or is it fixed at your setting? Have you ever taken that thing out under some really dark skies? Twin 120mm lenses must really bring in those faint extended objects. Using those 24mm Obie eyepieces, what magnification and FOV do you get? (Sorry, I am a dunce when it comes to figgering out the numbers) Perhaps you should consider writing up some kind of article or guide for others who would seek to construct such an instrument. Did you have an inspiration or specific plans at the beginning, or did you put this together from something in your head? Clear dark skies... MikeG -------------------- Michael Gilmer - Member of the Meteoritical Society & Collector of Falling Stars. Galactic Stone & Ironworks - Buy/Sell/Trade Meteorites, Moon Rocks, Mars Rocks, & 35 different falls and types! Post Extras:       cota_scope sage Reged: 05/16/04 Posts: 356 Loc: sioux city ia Re: budget astro chair [Re: Glassthrower]       #1132951 - 09/05/06 11:17 AM Edit   Reply   Quote Quick Reply   Mike the IPD can be adjusted and the power comes out about 25 power with the 24mm eyepieces,with 32mm eyepieces about 19 power. focal length of OTA is 600mm.later on I'm going to update the binocular body's with newer ones with MC prisms if i can find large enough ones. regards john Post Extras:       johnno scholastic sledgehammer Reged: 05/03/04 Posts: 807 Re: budget astro chair [Re: cota_scope]       #1133059 - 09/05/06 12:33 PM Edit   Reply   Quote Quick Reply   Hi John, That is indeed a VERY Impressive setup you have,a lot of thought,and I would think,also a lot of work has gone into it. I think MIKE,is also Impressed,Rightly so. Me too. Regards. John Post Extras:       EdZ Professor EdZ Reged: 02/15/02 Posts: 12581 Loc: Cumberland, R I , USA42N71.4W Re: budget astro chair [Re: johnno]       #1133146 - 09/05/06 01:21 PM Edit   Reply   Quote Quick Reply   shall we cut this discussion OUT of the Astro chair thread??? and move it to it's own thread. I think yes edz -------------------- Teach a kid something today. The feeling you'll get is one of life's greatest rewards. member#21 Post Extras:       Glassthrower Vendor - Galactic Stone & Ironworks Reged: 04/07/05 Posts: 14686 Loc: Hurricane Alley Re: budget astro chair [Re: EdZ]       #1133159 - 09/05/06 01:25 PM Edit   Reply   Quote Quick Reply   Yeah, I didn't mean to sidetrack the thread, but I could not pass up commenting on that binocular behemoth. I am quite fascinated by such instruments. And is that a BIN FULL OF BINOCULARS I see on the ground? It looks like John could open his own bino-astronomy store. That's an enviable collection of optics you have there John. I wonder if the gnomes come out at night and observe with them while you sleep? Clear dark skies... MikeG -------------------- Michael Gilmer - Member of the Meteoritical Society & Collector of Falling Stars. Galactic Stone & Ironworks - Buy/Sell/Trade Meteorites, Moon Rocks, Mars Rocks, & 35 different falls and types! Post Extras:       electra glider super member Reged: 08/05/06 Posts: 164 Re: budget astro chair [Re: Glassthrower]       #1133984 - 09/05/06 09:54 PM Edit   Reply   Quote Quick Reply   New thread?....heck write an article ...Great job on the CHAIR and the binoks....cool p-mount too eh eh Post Extras:       Penarin Pooh-Bah Reged: 11/22/04 Posts: 1115 Loc: Orion, IL Re: budget astro chair [Re: electra glider]       #1134729 - 09/06/06 10:24 AM Edit   Reply   Quote Quick Reply   I like your modified office chair. It looks comfortable, and the price is right -------------------- Meade 6" f/8 refractor Orion Atlas (EQ6) mount Oberwerk 25 x 100IF Pentax 10x50 PCF WP II Orion Outsider 8 x 40 WA Post Extras:       charen scholastic sledgehammer Reged: 05/28/05 Posts: 786 Loc: New Zealand Re: budget astro chair [Re: Penarin]       #1136056 - 09/06/06 11:29 PM Edit   Reply   Quote Quick Reply   How far 'back' can you go towards zenith without being to uncomfortable or unsafe ? [Tipping back over would not be good!] -------------------- 35 binos. 80mm Cat. WO66ED SV NH 80mm / EQ3 Meade 8in.LX90 Skywatcher Equinox ED120 / Goto HEQ5. Post Extras:       Pages: 1 | 2 | (show all) Previous   Index   Next   Threaded   Extra information 7 registered and 27 anonymous users are browsing this forum. 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