My 15mm does feature the 4 feet mark and the front lens diameter is 69 mm
(measured with a caliper). It's a K SMC PENTAX 1:3.5/15, sn 5068171.
Fabio
Fabio, is it possible to get a more precise measure? 68,6 and 69,8
seems to pertain to the two different types and your 69mm measure
lies about
As we are talking about the 15mm, and some Takumar and (few) K lenses
(not A) have an aspherical element, the japanese Pentax Lenses Study
Group seems to give a way to distinguish the aspherical lens fron the
non-asp.
The feet indication on the ASP would be 7, 4, 2, 1.5
The feet indication on
Andre Langevin [EMAIL PROTECTED] wrote:
As we are talking about the 15mm, and some Takumar and (few) K lenses
(not A) have an aspherical element, the japanese Pentax Lenses Study
Group seems to give a way to distinguish the aspherical lens fron the
non-asp.
Andre Langevin wrote:
As we are talking about the 15mm, and some Takumar and (few) K lenses
(not A) have an aspherical element, the japanese Pentax Lenses Study
Group seems to give a way to distinguish the aspherical lens fron the
non-asp.
The feet indication on the ASP would be 7, 4, 2,
http://www.ucatv.ne.jp/~tweety/Report/Comparison15mm/Comparison15mm.htm
Notice that both shots were taken with the lens wide open! (Obviously
because the exposure time was so long.)
There's definitely a difference, but they both seem like damn fine
lenses.
Mark Roberts
Indeed. I had the same
This message was apparently lost, so I'm posting it again.
Andre Langevin wrote:
As we are talking about the 15mm, and some Takumar and (few) K lenses
(not A) have an aspherical element, the japanese Pentax Lenses Study
Group seems to give a way to distinguish the aspherical lens fron the
Dario wrote:
Interesting to me, Andre. You were sure such a topic will have raised my
ears, weren't you?
I was checking your ears and as predicted...
But don't you already know this group?
You can also notice different name lettering on lenses. smc (lower case)
followed by wider PENTAX is
7 matches
Mail list logo
