Does this look collimated to you?

[Hailfire101]

Hi guys. 

I STILL struggle collimation the 200p. I think next time I'm out and about with someone who has a few years experience I'll have to get some lessons off them. 

Anyway, does the below photo look collimated to you? 

Thanks. 

[ronl]

I would say it's ok, for observing it's good to go, try a star test when you are out observing,

that will tell you more.

Clear Sky's.

[Hailfire101]

Whats a star test?  Equal circles when slightly un-focused?

 

[Demonperformer]

Yes.

[Hailfire101]

OK, thanks I'll wait till there are stars again, and have another go. I think collimation is the only part of this hobby I'm not keen on. Haha

[Demonperformer]

I don't know of anyone who is. 

[carastro]

Have a read through this tutorial, it's really good and many people use it including me.  It might give you more confidence.  The collimation looks OK to me.  

http://www.astro-baby.com/collimation/astro babys collimation guide.htm

Carole 

 

[Hailfire101]

Hi there. This was the guide I was following. So hoped it would be OK. 

Even still... Not confident with it yet. There is an astronomy centre not too far from me I'll have to take the scope to. I'm sure they will allow me an easy way.

[SteveA]

Pretty close I would say....of course it depends upon the severity of your OCD! 

Steve

[RichM63]

I actually enjoy collimating! (there is probably a medical term for this)

Anyhow, this is a good but old thread on the subject

Collimation

also download Als Collimation Aid from IceInSpace second from bottom in the files list. It will help you.

Rich

[Demonperformer]

1 hour ago, Demonperformer said:

I don't know of anyone who is. 

So now I do, @RichM63

[JOC]

It looks as good as mine did when I followed Astrobaby's guide.  Even to the point of being a tadge off-centre just as is described in the guide and just as I also was.

[Nyctimene]

Looks quite good. Maybe the secondary is not centered ideally under the focuser (there seems to be a thin dark rim at it's right circumference), but only a very slight error, that will not have any influence on observing. I'd leave it, as it is.

Stephan

[Hailfire101]

1 hour ago, RichM63 said:

 

Collimation

also download Als Collimation Aid from IceInSpace second from bottom in the files list. It will help you.

Rich

How do you sue this?

[RichM63]

Open your image on your PC as above then open Als Collimation and drag it over your image. Set the concentric circles to the circles on your image. Ideally start with an image big enough to see properly.

I usually start with the outer circle as it is easier to line up, then the inner, then the center, then the 'screws' if required.

The software works such that the displayed circles are always concentric and thus you will see any collimation error and can fine tune, and repeat the image taking process and check again etc.

Your above image is slightly off collimation, but for visual observing you should be OK to go.

In the thread link I posted above, scroll through the pages until you see my pink and yellow image.

Rich

[LukeSkywatcher]

Looks pretty good to me (for visual). If you do imaging (im guessing you dont) it would have to be 100%.

 

[LukeSkywatcher]

3 hours ago, RichM63 said:

I actually enjoy collimating! (there is probably a medical term for this)

Anyhow, this is a good but old thread on the subject

Collimation

also download Als Collimation Aid from IceInSpace second from bottom in the files list. It will help you.

Rich

Opticus Exactus.