Bicycle Bell #3

Bike Bell -- NEX-5 & Minolta MD Rokkor-x 45mm f2. Click for larger.

This MD Rokkor-x 45mm f2 is visibly smaller than the MC 55mm f1.7 and the MD 50mm f1.7.  It has a 49mm filter size, instead of the 55mm of the MC versions.  Quite a bit lighter too.  The MD lenses were a start of cost reduction in terms of built quality and materials used.  They are generally smaller and lighter than the MC version.  For this reason, I like the MC version of the lenses much better.