I can screw on my SCT 2" diagonal on it, but you are limited to the diameter hole already in it for the light to go through. I am lucky with my 12" SCT as i can unscrew this and install the Lumicon GEG which gives me "all" the light. So yes you can attach the 2" visual back but you will not gain much by doing that except standardising your accessories, like a 2" diagonal then slip in the 2" camera adapter (like what i did at duckadang - all images through the c8 were done this way) if nothing else it makes you feel better
