Old standard lenses on SONY E-mount

I noticed that was the case, tens of modified standard lenses are prepared for SONY E-mount after deserting all the camera equipment I had been piling for half a century. My son has the same hobby habit as myself and he gave me some of the second handed SONY E-mount camera bodies one by one, Nex-3, Alpha 64oo, Alpha 7-3 and Alpha 9 as a matter of fact, this is the reason why I am keeping E-mount lenses now even after I had determined to retire from camera and photo hobby a year ago. As I had modified several Minolta lenses including Zoom ones into Canon EOS mount with 44.00mm flange back distance. Minolta SLR flunge back is 43.50, so Physical discrepancy exists as the lack of 0.50mm distance to establish the definite infinity focusing. Most of the people in the field define that any Minolta SLR lens have no way to modify to adapt another flange connection those exceed 43.50mm. Some engineer who have experienced to disassembling Minolta lenses should know the critical fact and truth that every Minolta SLR lens has tolerance to establish infinity position and this adjusting mechanical construction covers 0.50mm distance leading to establish infinity on Canon EOS mount with 44.00mm flunge back. So, tens of Minolta SLR lenses had been modified into adaptation with 44.00mm flunge back, just before the period the period of time, no prevailing of Mirror-less models. Consequently, over 20 of modified Minolta SLR lenses were left unsold behind. Now, K&F Concept EOS/NEX lens mount adapter make it possible to apply them on Sony Alpha 9 by chance, it was a good Gospel for me as a matter of fact. Standard fixed focus length lenses of 12 pieces in total here are almost from old range finder cameras connecting with Sony E-mount flange base.