Jump to content

SkySurveyBanner.jpg.21855908fce40597655603b6c9af720d.jpg

Adjustable T thread adaptor with locking ring

Merlin66

Recommended Posts

Merlin66

Merlin66

Posted
Posted

Just a heads up.

I was looking for a T thread adaptor I could use on the Spectra-L200 to accurately position the various CCD cameras that are used.

I found this TST2Vvar adaptor at Telescope-Service.

http://www.teleskop-express.de/shop/product_info.php/language/en/info/p2641_TS-Optics---variable-T2-Verlaengerung-von-20-5mm-bis-30mm.html

Ordered a couple yesterday... and they arrived today.

Looks like the answer to my problems! If you have a similar need - to position your T thread camera accurately then check this out!

Link to comment
Share on other sites
Merlin66

Merlin66

Posted
  • Author
Posted

With a couple of index marks (gold paint!) I can get the repeatability of positioning within 1/8 of a turn...0.75/8 = <0.1mm - works for me!

I should also say....add the TST2We rotary adaptor (only 5.5mm wide) then you have a poor man's non-rotating helical focuser.

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.