Optical problem TS photoline 80mm triplet.

[Perrywarburton]

Hi. So I’ve been having an issue with this scope for some time now. I have been in contact with the store I bought it off and going back and forth for some months about the quality of the optics. 
 

the seller had the scope sent to ES Reid and it came back with a Stamp of approval for the scope and the flattener (TSFLAT2) 
 

I then tested it only to find my stars where still out of shape. 
 

I then did some hard checking over my equipment and found I had some flexure. Once I sorted this the stars started to look much better but not pin point. 
 

and then I started to see why. Now can anyone tell me why my stars look like this? 
 

any help would be appreciated 

thanks. 
 

[Peter Drew]

If Es Reid passed the optics as OK then I think that is reliable.  The inference is that there is a problem (more often than not) with something in the imaging train.  Good luck with correcting it.    🙂

[almcl]

2 hours ago, Perrywarburton said:

Now can anyone tell me why my stars look like this? 
 

Is it this that concerns you:

which might be an object intruding into the light path

Or this:

which might be tracking error?

[Same old newbie alert]

43 minutes ago, almcl said:

Is it this that concerns you:

which might be an object intruding into the light path

Or this:

which might be tracking error?

Or spacing if it's on the edges