28mm is actually normal on APS-c. To get to wide angle you need at
least 24mm. Now the K 30mm f2.8 is better optically than almost all of
the 28mm lenses Pentax made. There is a 28mm M/A at f2.0 and a K version
with a different optical formula. God knows what those sell for they
are pretty rare as well as being pretty fast for wide angle lenses.
Also the 30 is supposed to be optically superior to them all. The f3.5
versions in the 28mm lenses in K,M,A are also supposed to be better then
the f2.8 versions, though I've not ever handled any of them. I have
both an A 24mm f2.8 and a K as well, both sell for three or more times
more than the 28mm lenses, I bought them both when they were still
relatively inexpensive.
If you're looking for sharper, the f3.5 versions are that even wide
open, and they are about the same price as their f2.8 brethren. However
using an f3.5 manual focus wide angle lens without focusing aids makes
critical focus difficult to achieve. I say that from experience as I
have a 35mm f3.5 SMC Takumar that while beautifully made, and very
sharp, makes looking through any viewfinder very dim, and even dimmer on
those cameras actually made for them, it's really best to set
hyper-focal distance and aperture on it and shoot that way.
On 8/19/2014 5:23 PM, Eric Weir wrote:
On Aug 19, 2014, at 12:02 PM, P.J. Alling <webstertwenty...@gmail.com> wrote:
To put things in perspective, KEH.com has the Pentax A 28mm f2.8 in EX
condition right now for $99 and BGN for $79.
Is there a better—faster, sharper—Pentax wide angle lens at let’s say not more
than double this price?
------------------------------------------------------------------------------------------
Eric Weir
Decatur, GA USA
eew...@bellsouth.net
"What does it mean...that the world is so beautiful?"
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