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Old lens Minolta Rokkor 45mm/2.8 was transplanted on SONY E-mount. The original camera is Minolta Uniomat-Ⅱ Range finder produced over 50 years ago, 1960. As a matter for regret, lens shutter construction does not have Iris leaves independently, eye closing is done by shutter blade. So, it's very inconvenient for my use, removing shutter construction thoroughly and make use of an original Iris system. Deeper consideration led me some conclusion, following the original concept on iris setting, fixation of shutter cocking shaft at some adequate angular position make it possible to control iris closing rate by rotating controlling inner ring.
Consequently, this small 45mm standard lens is applicable on SONY digital format, and it will show remarkable result as a Triplet old lens.