[anthony2302749]

Evening all

Acquired a new Barlow for my planetary imaging endeavours. Decided on the Baader Q-Barlow 1.25” 1.3x/2.25x because of its modularity and that the Barlow element can be screwed directly into an eyepiece of in my case a T-Piece.

In practice, the Barlow Element is screwed directly into the T-Piece, the IR filter is screwed onto M42 side. The whole assembly is screw on to the ASI224MC which makes for a neat compact package.

I have estimated the assembled parts gives me a F/Ratio of 18 which is close to the 5 times rule which I have read about.

I got to test it out to night, so in practice it works a treat, here is an image of Aristoteles.

Cheers
Anthony