Minolta Macro lens distance challenge : 50mm F/2.8 -100mm F/2.8 - 200mm F/4.0. Why not using the same subject for each lens, like a 100mm 2.0 :-)

The goal of this test is to demonstrate the gain in distance between each lens focal for a same 1:1, 1:2 & 1:3 magnification from the front lens element(after that you can start using "acceptable" standard lenses).

The result is not perfectly scientific, but to the eyes, this look medimum linear :-) front the front lens to the subject, but the lenght of each lens is different, where the 100mm 2.8 got better distance from the focal plane compare to the 200mm 4.0.