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Hello,
Gee, the “other half” must be one very happy person to have such gifts lavished upon them!
In terms of the Tamron lens, I understand that in the 35mm film days of old, Tamron used to make generic lenses and then one purchased a specific “Adaptall Mount” that mated the generic Tamron lens with the specific brand of your camera, be it Pentax, Canon, Nikon, Olympus, Minolta, etc.
However, that was in the days when there was relatively little electrical communication between camera and lens, so these “Adaptall Mounts” had mainly mechanical interfaces.
With the new breed of DSLR’s, I think compatibility is more of an issue as they are fully electrical and so if the Tamron lens does physically fit, it may not actually work as the camera may not recognise it.
In my case, I had a swag of lenses from Pentax 35mm film days and they were all compatible with my Pentax *ist DS DSLR although I had to manually set the exposure settings (aperture and shutter speed) as well as manually focus.
I would also be careful, because on the older lenses, a lug or tab was usually mounted on the lens so that the camera body could engage it. A modern DSLR may not take kindly to having this tab or lug poking into its body, especially when the mirror flips up.
Cheers
Dennis
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