Which Takahashi 0.73X reducer matches the FSQ-106EDX III, the scope with the CAA (Camera Angle Adjuster) and not the Captain's ("Capstan"?) wheel rotator?
And does it require an adapter to mate with the CAA??
Takahashi USA has an (annoyingly!) confusing array of System Charts listed, and I'm not sure which one(s) are relevant. (At least they're in English!) These are at www.takahashiamerica.com and click on System Charts at left.
The link for "FSQ-106EDX Visual/Imaging System Chart (TX)" downloads a file named FSQ106EDX I-V System Chart.pdf which appears to be the correct one. It shows Reducer QE which appears to fit into the hole in the CAA, with threads that screw onto the outside of the CAA with no adapter required. It was my understanding that this is how the reducer attaches, and that it was redesigned to fit into the CAA to compensate for the 25mm of back focus lost due to the CAA. (I have the 1.6X extender, and it fits in this way, but an adapter is required.)
The "FSQ-106EDX2 Visual/Imaging System Chart (TX)" includes a CAA, but the pictured Reducer looks different and requires an adapter. I don't think is what i need for the EDX III. (I have always been confused by the various 106-EDX I, II, III, IV. I am pretty sure I have the III, and I think the IV is a newer version with tweaked optics. Do the I and II actually exist, or are they mythical beasts??)
Bottom line questions:
- Are there TWO DIFFERENT 0.73X Reducer QE models, and if so, how do I tell them apart??
- Which one do I want for the FSQ 106-EDX III (with CAA), and how does it attach to the scope?
I am hoping that some knowledgeable Takahashers can set me straight. Thanks!