[h0ughy (David)]

Originally Posted by JohnH

Hi - looks like you have the CFW8 there - if yes then the position is detected by the IR sensor beam being broken by the little white tabs. There are two by the #1 filter position. Resetting the power will cause the FW to go to that posn. And yes it looks like you have interference type filters thus red looks blue etc - ie red filter accepts red but looks blue from the scope side (will look red from the camera side).

thanks john - didnt realise it worked that way
and thanks for the tip on the 1 position - does it go clockwise or anticlockwise for the positions?