Visual back on older C14 Telescope

[Sandoz]

My older C14 is equiped with a 1.25 eyepiece.I wish to install a 2 inch xlt diagonal.What part do I need to accomplish this?

[RT65CB-SWL]

Hi @Sandoz and welcome to SGL. 

Assuming it has the star diagonal SCT threaded locking ring/collar, then nothing else is required. Just unscrew it and remove the 1.25" visual back and screws straight onto the back of your OTA as shown in image #1 below on my 're-modded' ETX105. If however the star diagonal is a 'push-fit' then you will need a 2" SCT visual back.

 #1

BTW - that is my Altair Astro SCT 2" star diagonal on the back of the ETX105 that I share use with my Celestron C6/SCT. 

 

And some more images of my ETX105...

 #2      #3     #4    

Image #3 has an ETX-SCT adaptor ring so I can attach any SCT accessory. Image #4 shows it with a 1.25" SCT visual back.

 

 

 

Useful tip: 

• when putting on anything that is threaded, always turn it anti-clockwise first, then when you have found the spot where it is likely to tighten up... tighten it up clockwise.
• if the threads are left-handed, clockwise first to untighten... then tighten it up anti-clockwise.
• it prevents cross-threading. I do it all the time with my SCT accessories, e/p filters, and when adding filters to my camera lenses, etc.

Edited September 26, 2021 by Philip R

[dweller25]

Posted in error

Edited September 25, 2021 by dweller25