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Following my determination this morning, I have been fighting with the difficulty to set up MC Rokkor 50/1,7 on EOS Digital. O,5mm discrepancy on flange back values was compensated by helicoid setting adjusting points as imagined. Though physical impossibility of compatibility because of flange back distances as there is, MC lens constructive design to adjust infinity position of focusing ring made it possible to set back the lens component 0,5mm posteriorly. Thanks to shining 1,7 iris position, focusing is easy when it is fully opened. However deeply the recent zoom lens was considered to obtain excellent performances, to which one can this MC Rokkor 50mm standard focal length lens can be the second?

To tell the truth, I have some hidden intention to do the same on the most excellent lens in Minolta that wears the pride of workmanship that can be world-class, MC Rokkor 50/1,4 with full metal lens element case and metal helicoid system. Probably I would come to a goal with 1,4 lens relatively easily supported by the already known information of experienced two MC lenses.

Rewiring of power supply has been undergoing all through the night just in front of my laboratory. This kind of reconstruction is inevitable for the Development Station here. Not a few Special Purpose Vehicles with Crane Outrigger were terminated in our neighborhood.

As for old Minolta MC Rokkor 50/1,7 lens modification converting on Canon EOS Digital mount, flattening of flange surface was performed to insert 100/1000 mm thickness sim between the construction. Some empty aluminum can was utilized for the purpose making holes with special circular device. Old grease was removed thoroughly to change heavier friction resistance into lighter movement of focusing ring following as later models. Microflon powder would be applied in helicoid grooves. Probably final setting of infinity position of lens element would be done today.