Katherine:
When reducing the image train diameter to 42mm, will there be significant image vignetting? The image chip is about 44mm diag. and I am using an F4 refractor which will probably make matters worse.
You mention attaching the camera w/ tilter to the back of the EFW, Do you sell a 54mm male to male adapter? As both camera and EFW have female fittings. I don't know why ZWO didn't make a male threaded output on the camera similar to most of the other cameras ZWO makes.
thanks
Ray