WOW!?! Everyone ELSE must be so far removed from the days when they shot film WITHOUT a Zoom lens that they just don't remember
what's what about some of the basics of photography ...
Determination will be easiest if whatever you took pictures of was somewhere nearby to where you currently are AND can simply attach the various lenses to the camera and look through to see how the image in the camera looks compared to the "prints" you have...
Posting pics would probably help ...
Regardless, because there is
some overlap in the focal lengths due to the Zoom lenses you acquired, there will be some uncertainty, but since there are only three lenses, once you sort out some aspects of the images, you may-or-should be able to recall which lens was probably used since you didn't have an assistant changing the lenses who then handing the camera to you ...
Based on the background in the images, YOU can readily determine which one was used for which image BECAUSE the background will appear to
fall away at different rates ...
With items in the background of the pics taken with a Wide Angle lens appearing to be comparatively smaller than objects the background on the "normal" 50mm lens ...
The overlap of the 28mm-70mm with the 50mm lens complicates this a little ... so YOU will have to try to recall how much fiddling you were doing with the lens's Zoom capability ...
Pics taken with the telephoto Zoom lens will generally have a compressed background and/or shallower depth of field.
If you are asking WHERE in a Zoom's range the picture was taken ... again, retracing your steps is the key ...
BTW. You can use your recently acquired Minolta-mount lenses with ANY mirroless camera body.
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