Carlton,
I have and use the Baader Hyperion x2.25 Barlow for Solar imaging.
Mounted with it's 1.25" nosepiece in the BF and a T thread adaptor for the camera body.
This seems to give around x2.2 magnification.
The manual doesn't mention anything about "direct" connect.
I'd try and see. Measure the FOV with and without....
https://www.baader-planetarium.com/e...om_mark_iv.pdf