Guide :Optics : Baigish 12 Russian Night Vision Binoculars

Part I want to make both sides adjustable on the objective lens so I need the part that you rotate, It screws into the main housing and the objective lens screws into it, Its the peace that you rotate to focus. Thanks Baigysh-21

Posted by winterriver on Jun 02, 2008

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Part I want to make both sides adjustable on the objective lens so I need the part that you rotate, It screws into the main housing and the objective lens screws into it, Its the peace that you rotate to focus. Thanks Baigysh-21


Try; www.rugift.com they sell these russian NV. They might be able to help you. Good luck. :)
Read More At : Baigish 12 Russian Night Vision Binoculars...

I've just purchased a used TAL 1 telescope complete with eyepieces and Barlow lens. However I can only get objects into focus by moving the focuser to it's limit and then physically lifting the eyepieces part-way out of the eyepiece holder. I don't think this is a collimating problem and my searches on the internet turned up a possible cure - a focuser extension tube (11/4"). Your assistance will be appreciated.


Yes, the "back focus" is too short. That extension should work.
Read More At : 3" Reflector Telescope w/Talking Guideand Tripod...

Start Align with NexStar 4SE


Did you enter the correct TIME, DATE, and LOCATION? and yes you may have aligned on to the wrong stars -- they need to be "near" the center.
Read More At : NexStar 4 SE Telescope...

Do u folks have parts for a Jason 675x4.5 Mod 518 ie screws for the Objective lens ,Barlow lens,, 4mm or 20mm focal length eyepieces


Fixya is not a parts supplier. Contact Jason directly.
Read More At : Optics...

Ave no manual, instructions,definately no knowledge or skills to attempt toput several pieces, 2 glass lenses back the way they r supposed to be installed.i have no idea if i have the right # of parts or if there has been possibly some parts lost. its my sisters telescope& i pulled it out of the attic to check it out. the telescope is a bushnell model # 78-9512 700mm focus lenght60mm objective lens(f/11.7) please someone help me!!! thank u much!!


Never take an eyepiece apart -- first you will void tany warranty-- and second no one can tell you how the multi-elements go back together properly.Buy a new eyepiece and throw that one away.Here:http://www.telescope.com/
Read More At : Optics...

Focusing Issue Last night, I used my Celestron 11" NexStar11GPS for observing and astrophotography, and it worked like a charm. Tonight, with the same equipment, I am unable to focus the telescope at all. I turned both the coarse and fine focus knobs counterclockwise as far as they will go, but every object is still out of focus--and once I reach a certain point in turning the focus knobs, the object simply moves in the eyepiece rather than becoming more focused. This problem is present with or without the use of a diagonal. The only thing I did with the telescope between last night and tonight was to mount a Celestron StarPointer (a holographic sight-type finderscope) onto the side of the telescope tube's back end with some 8x32 3/8" screws using pre-drilled screw holes. What happened?


The screws should be short enough not to stop the primary's travel, but pull them out and try it again. Good luck! George.
Read More At : NexStar 11 GPS (660 x 279mm) Telescope...

No matter what lens specification i install of the 3 that were supplid by meade, the object( any object.......the moon in this particular case) is never in focus. it is only ever in sharp focus when i move the eyepiece about an inch away from the telescope and hold it in my hand. not ideal i know, but the moon does then appear in very sharp focus. its as id the size of the eyepiece lens is too small. what to do. whats missing?


If possible turn the lens extension around. also there should be an adjustment you can make right on the eyepeice. turn it left or right
Read More At : Meade ETX-70AT Astro Telescope 0705-04-10 with 494 Autostar......

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