I am just getting the gear together to have a go at planetary imaging. I need a barlow for my Edge HD8 (f10 fl of 2032mm). My planetary camera is the ASI224MC. I am looking at 2X barlows to get over 4000mm focal length. What are the best choices currently available? The barlow will probably only be used for imaging with this scope, but might be used visually occasionally with my other scopes. Looking around on the Net i am leaning towards the Televue Powermate 2X, but are there better choices, or just as good at lower price, etc?
Opinions?
