Concenter collimation help!

[tanwir]

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! 

[Spile]

Top one is correct. The dark reflectionx2 of the secondary should be offset. As per https://astro.catshill.com/through-the-eyepiece-tube/