Hi Ken,
thanks for the quick response...
Yes I am aware that SBIG no longer sell their spectrographs, I wasn't aware however that they were only usable for the ST series cameras.... It wouldn't be so much of an issue however as I own an ST10.
I would also be interested to learn more about the MG80 & FC125.
In the interim, I'll read Richard's website.
Thanks once again.
best
~c