SBIG - Internal Filter Wheel for the ST-402ME with custom RGB+C color filters

An internal filter wheel with custom RGB+C color filters is available for RGB or LRGB color imaging with the ST-402ME.  This
filter wheel uses the same custom designed high quality dichroic filters that we developed for the ST-7/8/9/10 "E" and "ME"
cameras.   The filters are designed specifically to yield a proper balance of both OIII and H-alpha emission line intensity from
planetary nebula while at the same time giving an accurate while balance from continuum light from solar type stars in the same
field.