Skywatcher f4 coma corrector issue

[Craig a]

5 minutes ago, vlaiv said:

Some things in the image will have this problem as they emit in IR part of spectrum (stars, clusters and galaxies)

That’s what I didn’t want to hear as I got the 533 to image the smaller galaxies out there, I think I’m just going to have to try without the filter the next clear night, a bit of colour distortion is better than having the image ruined by them rings 

[vlaiv]

7 minutes ago, Craig a said:

That’s what I didn’t want to hear as I got the 533 to image the smaller galaxies out there, I think I’m just going to have to try without the filter the next clear night, a bit of colour distortion is better than having the image ruined by them rings 

I think that you can easily fit 1.25" UV/IR cut filter with T2/1.25" adapter. That should not mess up your distance to CC.

You might even have one come with camera?

You still have T2 thread and 2" nose piece available for connection.

[Craig a]

16 minutes ago, vlaiv said:

I think that you can easily fit 1.25" UV/IR cut filter with T2/1.25" adapter. That should not mess up your distance to CC.

You might even have one come with camera?

You still have T2 thread and 2" nose piece available for connection.

That’s a great idea, I have a baader neodymium filter that might do the job and not cut as much of the spectrum out as a lp filter would I shall check if the 533 accepts a filter there 

[Craig a]

Well I never! I didn’t even realise the cam came with the adapter that fits inside one of the spacers to accept a 1.25 filter here is what I’ve got now 

[Craig a]

Right now I know that I will sell the 2 inch uv/ir filter and buy the 1.25 inch one, until then I will try the neodymium filter and see how that works out.

thanks so much for your help vliav