I have recently purchased a 106 FSQED with the reducer QE that gives me an f ratio of f3.6. I have a few questions to think about prior to its arrival. As we all know Takahashi diagrams are not very informative and I am wondering about distances and vignetting.
1. Will the above reducer illuminate an 11002 sensor without vignetting? Or will I need the more expensive reducer which is 4"? I am not planning an immediate change over of camera but will eventually want to use a large format camera on the scope given its credentials.
2. Do I install the reducer straight onto the focusor and then the rotator in the reducer metal back distance?
Yes perhaps. Not sure Paul. It may also go on the end of the focuser but it may have been because I was using the CAA. I am pretty sure the thread on the end of the focuser is the same as the thread on the end of the CAA. Best check on Tak Uncensored Yahoo Group. These sorts of questions come up all the time.