focal length

I I would like to know if I can use a Q-extender on my TMB 105/6.2 to bring the focal ratio to f/8 so I can just use the scope for visuals------- the Q-extender is used on a Tak. 106N to change the ratio from f/6 to f/8.Thanks

Brent

Brent,

I doubt you could use the Extender Q on any other scope other than a Takahashi, mainly trying to find any adaptors to configure the Extender Q to your scope. Originally it was designed for the FSQ-106 then it became an accessory for the TOA-130. I have read reviews from owners of FS-128 and FS-152 that they have successfully used the Extender Q on these scopes.

Why not look at the excellent Televue Powermates (X2.5, X2, X4 and X5)they acheive the same thing the Extender Q does.