Colimation screws on a 150x750 newtonian

Glenhuon (Bill) · #1 13-08-2007, 10:58 AM

I've recently bought a S/H 150x750 newtonian, no instruction book but has an Andrews sticker on the black tube. Looks similar to the Celestron/Vixen OTA's. The collimation needs a little tweak but the only screws I can see are on the base of the tube and look like only cover plate screws. Are the adjusting screws under this plate? Loath to remove it as I might end up upsetting the whole alignment.

Glenhuon (Bill) · #2 13-08-2007, 11:11 AM

OTA pics

Tamtarn · #3 13-08-2007, 11:46 AM

Bill

If you remove the three cover plate screws and take the cover off, you will see three collimation screws and three locking screws for your adjustments.
Have a look in the rear of the book you have it shows you about collimation and the adjusting screws.

It's the same as our Skywatcher.

David

Glenhuon (Bill) · #4 13-08-2007, 12:16 PM

Thanks David. When all else fails, read the instructions LOL