On 2/8/2012 2:52 PM, Toralf Lund wrote:
On 2/8/12 5:33, Bob Sullivan wrote:
Where I've experienced problems with the A series plastic aperture
ring is the A28/2.8 lens.
The A50's have never caused me any problems, and they are so much more
functional then the K's or M's.
Well, the A50/1.7 is the only lens I have had such problems with. The
M version somehow seems slightly more well built...
Only, because it is.
- Toralf
Regards, Bob S.
On Tue, Feb 7, 2012 at 6:37 PM, Darren Addy<[email protected]>
wrote:
On Tue, Feb 7, 2012 at 6:25 PM, Bob Sullivan<[email protected]>
wrote:
I agree. There is not much difference in Pentax 50mm lens performance
from the K50/1.4 thru M50/1.4, A50/1.4, and FA50/1.4. Same for the
K50/1.7 thru M50/1.7, A50/1.7, and F50/1.7. I expect the same applies
to the F50/1.4 and FA50/1.7, but I've never used those particular
lenses (or even held copies of them). Regards, Bob S.
If relatively similar optically then one must look beyond the optics
when making a choice.
Shallower DOF. Build quality (the A50 f1.7 is notorious for aperture
ring problems due to plastic internal tab construction that is
apparently not a problem on its siblings lenses. Tactile preferences.
etc.
I've settled on the A50 f1.4 for the most bang-for-the-buck and
ease-of-use. I keep a K55 f1.8 around just because it is so cheap
(some people seem to prefer the 55 to the 50, but I don't think I'm
one of them). I've got the equiv in SMC Takumars, mostly for my
Spotmatics.
Darren Addy
Kearney, Nebraska
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