Thanks for the feedback I ended up buying one but unfortunately there is not enough inwards travel on my 80ed focuser for it to come to focus. I need to be able to screw the adapter directly on too a T-ring somehow. Note?:what focusing I did achieve in th 80 f/7 showed a fair amount of vignetting. Will report further when I try it on the 120 f/5.
If all else fails I'll have one for when I do end up getting a Vixen 200 vcml f/9
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