The lens profile:
SMC Pentax 45-125mm F4 and SMC Pentax-M 80-200mm F4.5
The lens profile:
SMC Pentax-m 80-200mm 4.5 (200mm)
The lens profile:
Sharpness test 200mm F4.5
The lens profile:
Sharpness test 200mm F5.6
The lens profile:
Sharpness test 200mm F7.1
The lens profile:
Sharpness test 200mm F8
The lens profile:
Dreary day bokeh
The lens profile:
High/low key
The lens profile:
Jewel of the grass
The lens profile:
Version 1 vs Version 2