I have had a few PM's asking me why I am selling the flattener in favour of the William Optics FF IV.
The Orion flattener does not allow me to use my 2" IDAS LPS filter (or any other filter for that matter) as there is nowhere to screw it. The WO flattener apparently has a filter thread on the focuser end.
Since listing this for sale I have thought of another option. I could keep this flattener - as it does work quite well - and sell my IDAS LPS filter and get an
Astronomik CLS clip filter instead. Might actually work out cheaper in the long run??
Anyway, for the moment, this is still for sale.