MD 100 Macro

The performance of Minolta MD Macro-Rokkor 100/4 was tested at Kyoto the day before yesterday, excellent resolution of texture was proved as I had expected. In spite of a marvelous performance, most of the photographers must have deserted because old Minolta lenses of shorter flange-back value, 43,5mm than Canon EOS and 46,5mm Nikon Digital bodies in addition to SONY alpha 44,5mm. There should be no idea to adopt 43,5mm flange back MD lenses onto longer FB  digital body, so our common sense on this point leads us to a miserable conclusion.
Though this 0,5mm shorter flange back value than EOS mount standard might be some decisive flaw not to be controlled, so not a few MINT conditioned MD Rokkor lenses appear at an incredibly cheap price in the junk market, 1/10 to 1/20. It would be unwilling phenomena for the factory lens designing engineers once who had  been at the forefront, because they must have made desperate efforts to produce Minolta MD Rokkor lenses 30 to 40 years ago. The technology to correct most of the aberrations were established at that time already and now the way to obtain the best answer for lens designing is known instantly by computerized calculation how ever complicated and difficult formula might be. So, recent lens tastes are the almost the same between lens makers, because the answers are the same obtained by computer analysis. The difference of the way of expressing were found in silver salt period apparently, this is why I prefer older lenses than modern ones. 100mm/4 Macro Rokkor is one of my most favorite one among Minolta lenses while silver salt film period.