G'day Morton,
I have had a similar experience with two TV eps. With the 27 Panoptic it turned out that my Bintel 10" was not collimated as well as I thought it was.
Once properly collimated, I could focus the 27 Pano at the very outside; just a couple of mm to spare. That's all one needs though.
The 40 mm Plossl is much too far out of focus to bother.
Mark.
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