Jostein wrote:
Why not count the last 50 years! And why not just limit the math to
K-mount
and compatible lenses?
95% or more will have an aperturering.
(Counting all point and shoots, video lenses, security cameras etc. is
ridiculous in the present context)
Very true. However, the Canon EOS lenses does not have an aperture
ring, and neither does many nikon lenses. I don't know exactly why C
and N have eliminated them, but it could be a sign in time for the
future of the K-mount.
Personally, I don't miss the aperture ring much.
Jostein
Canon introduced fully electronic aperture control with EOS, so there's
a motor in the lens setting aperture, it's part of the selling point of
the Electro-Optical System, all lens-related motors are in the lens.
Nikon introduced this as a cost-cutting measure (the first 3 G lenses
were low-end kit lenses) then expanded it to the VR line and now all of
their new lenses are this way, the last aperture-ring design that was
introduced was the 50mm f1.8 AF-D, which was really a mild electronic
and cosmetic update of the 50mm f1.8 AF-N.
-Adam