Quote:
Originally Posted by SB
Hi everyone,
Have been trying to get good collimation with my Quattro 800 without great success. Today I'm trying a collimation cap.
Here is a photo looking through the cap apperture. Is this what I should be seeing? (the clips looks even around the primary and the centre circle of the primary mirror contains the image of the collimation cap aperture and is aligned with the centre of the spiders).
Prior to this I was using a collimated laser. The primary mirror circle and the collimation cap image was aligned but substantially offset from the centre of the spiders.
Many thanks
Chris.
|
Hi Chris. I cant see your picture that well on my phone but I think that is a normal offset collimation pattern that you see when collimated fast newt (the quattro is f4 ?). Have a look at "Astro babys guide to collimation-Newtonian telescope" on the net and at the bottom of the page she has a picture of this. Her guide to collimation is the best I know of. Hope this helps.
Cheers, Richard