Greg,
I appreciate what you have written. That makes a lot of sense, and of course, one must account for glass thickness in calculating BF.
But on the Moravian site they simply state that the distance from the CCD to the surface of the camera is 29mm. There is no mention of glass. Then in the next image they add what seems to be the low profile t-adapter that is 7.5mm from the bottom flush end of the adapter to the top with female threads. Again, no mention of glass...yet, this adds up to 33.5mm. This isn't confusing (or wrong!)?
Peter
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