I believe if you check, you'll find the number of aperture blades
different on the M and the K versions of this lens, with the K
having six.
[EMAIL PROTECTED] wrote:
>
> Not quite, JCO. The 120/2.8 SMC has 5 elements in 4 groups; the M, 5
> elements in 5 groups. Both used eight-bladed diaphgrams. I don't know about
> the screwmount.
--
Shel Belinkoff
mailto:[EMAIL PROTECTED]
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