I'm having a hard time understanding these specs of these two Nikon (Z-mount) lenses (or rather, reconciling them).
One of them is the Z-mount 105mm macro: https://imaging.nikon.com/imaging/lineup/lens/z-mount/z_mc105mmf28_vr_s/. It shows a minimum focusing distance of 0.29m with a 1x maximum reproduction ratio.
The other one is the 24-120mm zoom: https://imaging.nikon.com/imaging/lineup/lens/z-mount/z_24-120mmf4s/, with maximum reproduction ratio of 0.39x and minimum focusing distance 0.35m at all zoom positions (the .com site does not say this, but the Canadian one does)
How can that be? At the same focal distance, the projected image of an object at the same distance will be the same size (the actual physical size of the projected image on the sensor, regardless of how many pixels that corresponds to). If the MFD of the 24-120mm is 0.35m (close to the MFD of the 105mm macro lens), then at a focal distance of 105 x 0.35 / 0.29 = 126.7mm, the reproduction ratio would be 1x (the 0.35/0.29 factor accounts for the larger distance to the subject, following the pinhole camera model).
So, ok, the maximum 120mm on the zoom lens means that it will not quite get to 1x, but to 120/126.7 = 0.94x instead .... Certainly not as low as 0.39x
I assume that the pinhole model becomes less and less accurate as we deal with subjects that are closer to the lens, and the discrepancy between pinhole model and the reality may be different for prime lenses optical design vs. zoom lenses optical design (which would then explain discrepancies in specs related to minimum distances). Could this account for this 1x vs. 0.39x discrepancy?
Am I missing something else? (is it an error on the Canadian website tech specs, and the minimum focusing distance gets larger on the tele side of the zoom range?)