Attaching 2" filters to SCT for imaging

[gasdoc]

Hi all,

Anyone know of a cost-effective way to insert a 2" filter into the imaging train between a Nexstar 6" SCT and a DSLR?

Apologies for another newbie ask but I'm confused which bits to get in the UK after watching this on youtube

 

Seen this:

https://www.harrisontelescopes.co.uk/acatalog/celesctron-sct-adapter.html#SID=24

 

But not sure that's just a different version of what I already have (https://www.celestron.com/products/t-adapter-for-schmidt-cassegrain-telescopes)

 

And then not sure what other but I need to attach the filter?

 

Any guidance much appreciated

 

BW

 

Paul