Antares 12" Dob Stellarvue 10*60 finder Telrad Meade 25mm Plossl, Orion 10mm plossl, Celestron 6mm plossl, Paradigm 18mm,15mm,12mm, 8mm, Knight Owl 20mm, Shorty 2x barlow, Celeston Ultima 2x Catseye Triple Pack Collimation 4.5" Tasco 11TR Frankenscope 60mm Tasco 9TE-5 60mm Tasco 7T Oberwerk 12*60 binos
Clear Skies, Forever! The Vega Sky Center
254mm F/5.65 Homebuilt Fork Mounted Newtonian Reflector
152mm F/10 Jaegers Homebuilt ACHRO Refractor
152mm F/15 Fecker "Prototype" Homebuilt APO Refractor (to be constructed)
130mm F/9 LZOS Homebuilt APO Refractor (to be constructed)
127mm F/9.4 SS Homebuilt ACHRO Refractor
114mm F/8 Tasco 11te-5 Newtonian (to be restored)
102mm F/9 Meade 102ED Semi-APO Refractor
100mm F/13 Carton Homebuilt ACHRO Refractor
76mm F/15.7 Sears Discoverer 6339-A ACHRO Refractor
60mm F/16.7 Tasco 7te-5 ACHRO Refractor
60mm F/15 Jason Discoverer 313 ACHRO Refractor
Classic refractors incl. Unitrons, Zeiss, Goto Optical, Royal Astro, Edmund; visual observer.
"Toto, I have a feeling we're not in Kansas anymore!"
Tasco 66TE-5 <- now with the grandkids Meade ETX-70EC <- they got this one too! Tasco 7TE-5 Meade 300 Celestron C8-SGT Advanced Jaegers 103mm, F15
Orion ED80; Coronado PST
Tasco 12TE 60/700, c. 1959; Tasco 66TE 50/600, c. 1978
114mm f/4.4 Newtonian half-Dob
Zhumell 25x100, Celestron 8x56
Manfrotto 028B tripod, 502HD head
Sirui T-2005X tripod, Giottos monopod, Manfrotto 222 head
Quote:Thanks to all for your advice and to Mel also for your generous offer!I estimate that in-focus can be increased by 1/2" to 5/8" by using a shorter visual back and cutting the barrel of the diagonal. This is about the same distance as from the back of the main tube to the collar for the altitude adjusting rod (see attached photo).Bob, thanks for the heads up about the vintage Meade visual back, which I actually saw and bookmarked last night, then, after seeing your post, I ordered tonight on eBay. Whether it will thread onto the focuser drawtube will be determined.When I started this project I had no idea I would be scratching for a few extra millimeters!
Quote:Thanks Mel. I have enjoyed reading about your ATM projects and looking at the pictures of your fantastic builds that you've posted here on CN. They've been an inspiration for me.Terra
4.5" f/10 A Jaegers Homebuilt Refractor,12"GSO f/5.3"Reflector,10"Meade LX-50 SCT, 8" Hardin f/6 reflector Yulin 5"f/9 refractor, 4.5"TASCOS Luminova,11TE-5 & 11TR Lunagrosso reflectors,Cel.100mm Reflector.3" Tasco 3TER 700mm 76mm reflector, Tasco 10TE 76mm 1200mm f/l Refractor 60mm TASCO 7TE-5 1000mm f/16.7 Refractor 60mm TASCO 9TE 700mm f/l refractor 60mm TASCO 9TE-0 710mm f/l Refractor www.vega-sky-center.com
Quote: Hey Eric ! I see your dilemma. I know if Mel has one he will send it to you, but if he doesn't , let me know. I have one that came from a focuser with a .965 size drawtube with outside threads like yours. Here's a pic. This one is a little bit over 1/2 " thick, with more than 1/4" thread and is not made of dos plastica. G
Quote:Quote: Hey Eric ! I see your dilemma. I know if Mel has one he will send it to you, but if he doesn't , let me know. I have one that came from a focuser with a .965 size drawtube with outside threads like yours. Here's a pic. This one is a little bit over 1/2 " thick, with more than 1/4" thread and is not made of dos plastica. G Hello GThat looks very promising indeed-- thanks! Provided the threads match, the specs look spot on.
Quote:Quote:Thanks Mel. I have enjoyed reading about your ATM projects and looking at the pictures of your fantastic builds that you've posted here on CN. They've been an inspiration for me.Terra Mel,Started to explore your website, and I too have enjoyed learning about your projects and resources. For starters, I had been looking for an editable observer data file, and yours seems like it will fit my needs. I'll be checking out more of your site soon. Thanks!
Quote:I've said it before and I'll say it again, this is the best forum on CN and the best online astronomical community because we have the best, most generous people here in Classics. Classics on CN is a total Class Act! Terra
Quote:Here is a photo of the visual back I will be sending. Basically, it is the same as the one Gary shared a photo of. I hope it moves your eyepiece close enough to achieve sharp focus.Mel
Quote: And if focus isn't reached after all that, I guess I'll move to Alaska, and you'll never hear from me again!
Astro-Physics 5" f6 ca.1986
The Jordan Levinson Refractor 4" f15 ca.60s or 70s (work in progress)
Orion Apex 102 102mm f12.7 ca.2013
Tasco 10TE 76mm f15.7 ca.1965
Tasco 7TE-5 60mm f16.7 ca.1967 "Focus on far-out stars with professional ease." -Tasco catalog
Tasco 66TE-5 50mm f12 ca.1966-1972, Tower 6314 50mm f12 ca.?
Quote:If you send it to me I can modify it for you on my South bend. It should have threads on one end so you can unscrew it and send just the barrel. Send me a personal message if you want.Mike