tanwir

1 hour ago, AstroMuni said:

Do a star test and get the airy disk to tell you how good or bad your collimation is. Small alignment differences wont make much of an impact to your images anyway. BTW what scope do you have?

I have TS Optics 10" F4 Newtonian.

Looks like it's getting better but secondary is still off a little.

58 minutes ago, bosun21 said:

I found that it is great for your secondary alignment only. I prefer using a cap/cheshire for my primary and finished with my Hotech laser.

Are you saying I use my first picture where the secondary is perfectly under the circle and then use other tools such as laser to adjust primary mirror?  

I have a question. Once the secondary mirror is centered, the outermost circle starts to skew.

If I adjust the outermost circle then the secondary mirror is skewed.

How can I keep everything around the concentric circles?

Hello stargazers,

I need some help with collimation process on my 10" F4 newtonian. I'm using a TS optics concenter collimator and if I align the secondary mirror inside the innermost circle of the concenter then outermost circle is off and if I adjust the outermost circle then my secondary mirror is off. I have tried several time to adjust the three screws as well as the central screw of the secondary mirror but I'm not able to achieve alignment.

Thanks!