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Hi Peter,
If what your manual suggests, then f.l. ~ 30mm is equivalent to 50mm on 35mm format. One can only assume that the f.l. markings on the camera lens are true and not adjusted as 35mm equivalent. As I said last time, 70mm seems rather high. Check it out again - one eye against the view-finder window, the other eye peeping around the camera. The live-view is of no use.
Beyond that Peter, I think it becomes rather academic, and you should tell your wife anything that seems reasonable. I'm sure she'll be happy with that. ;-)
Just remember, 1:1 is when the image size on the sensor is the same size as the object seems to your eye. For this to happen, not disregarding all that I and others have said, the optical magnification which you would report is the f.l. of your scope divided by the focal length of the camera lens when the image it produces on the detector, (which is what you see through the view-finder) has the apparent same size as when you view the object with the naked eye.
Robert
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