Pentax-A SMC 28mm f/2.8 F2.8

Eric Weir eeweir at
Tue Jul 13 21:32:26 EDT 2010

On Jul 13, 2010, at 6:30 PM, Adam Maas wrote:

> On Tue, Jul 13, 2010 at 5:09 PM, Eric Weir <eeweir at> wrote:
>> On Jul 13, 2010, at 3:41 PM, J.C. O'Connell wrote:
>>> you may want to consider the K28/3.5 version, its
>>> reputation is better than both m or a versions.
>> . . . .
>> I'm a bit unclear about K as a lens series versus K as a type of lens mount. Until this thread I assumed all -- or almost all -- Pentax lenses were K lenses. I gather now they are distinct classifications. However, as a reference to a lens series, I think I have yet to encounter a K lens.
> A brief history of Pentax K mount.
> . . . .
> Pentax lens lines:

Thanks for the informative history, Adam. However, I don't see where in the evolution of Pentax lenses I would find "the K28/3.5 version" recommended by J.C. Contrary to what I'd just begun assuming, there seems to be no K series of lenses.

Eric Weir
Decatur, GA  USA
eeweir at

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