Originally posted by stevebrot Same optical design (based on pre-WWII Zeiss Biotar) as the 44-2, but with different body, k-mount, automatic diaphragm, fewer aperture blades, and multicoating. You can confirm the build year by the first two digits of the serial number. Use it on your K-5 IIs in the same manner as any other non-A -contact k-mount lense (M mode, green button metering).
Steve
Thank you Steve, yes the serial code starts with 93, I've noticed that
from the images the seller provided. Not sure about the number of blades (can't see it in the pics)
but there should be 6 blades. I know that the resolution is a bit lower than the 44K-7 but
I think it would be pretty good still.
I'm going to get this lens.
cheers,
sebastian