ZS66 SD - how much extension needed?

[Helen]

A quickie for those of you who have used the ZS66 for imaging. How long an extension tube do you need to get to focus without a diagonal? (with a SXVF H9)

thanks

Helen

[Reggie]

I've not tried with the sxvf H9, but with my 450d I needed a 40mm extension tube at prime focus, with the field flattener vII in it doesn't require any extension at all. HTH

[Whippy]

Helen, unless the H9 is a radically different design to my Atik 16HR, you should be able to reach focus with a 50mm extension. I use a 50mm 2" extension tube in conjunction with a WO SCT to 2" pushfit adapter with my 66.

Tony..

[Helen]

Thanks guys :salute:

Helen