No experience with the 17-70.
I’ve had the 16-50, 60-250. Both very fine lenses, no issues. I let go of both
of these when I downsized my APS-C kit.
I kept the 50-135/2.8. Alone, it is a superb lens. Together with the 1.4x
extender it is a very reasonable substitute for the 60-250.
Two thoughts. First, don’t leave the 20-40/2.8-4.0 out of your thinking. It is
a nice little lens; I bought it to use in lieu of the 16-50 because of the
smaller size. With the high-ISO performance of recent Pentax bodies, I have
stopped worrying much about the difference between Very Fast and Moderately
Fast lenses.
Second though: why a zoom? You have a good 50mm for the center of your range.
Now add the following:
21/3.2 $355 (these are todays price new at B&H)
35/2.8 macro $430
(If you don’t care for Macro, a couple other good very
inexpensive 35s out there.
70/2.4 $395
stan
> On Jan 29, 2016, at 11:27 AM, Ed Keeney <ewkph...@gmail.com> wrote:
>
> Hello all!
>
> I have the following in my bag at the moment...
>
> Pentax K-50
> SMC-DAL 18-55 3.5/5.6
> SMC-DA 50-200 4-5.6
> SMC-FA 50 1.4
>
> I find that the image quality of the 50 is outstanding when comparing
> to the other 2 lenses (primarily the 18-55). Not that the kit lens is
> bad, but the 50 is very sharp. I attribute this to the fixed aperture
> and overall better quality glass.
>
> I'm thinking of saving for a new higher quality lens (aren't we all?).
> At this point, I'm not sure which direction to take. Do I look at the
> current lineup (below) or try to find a second hand older lens.
>
> The current fixed aperture zoom lens lineup from the Ricoh site (US prices)...
>
> PENTAX DA 12-24mm f/4 ED AL [IF] $ 699.95
>
> PENTAX smc DA* 16-50mm f/2.8 ED AL [IF] SDM $1049.95
>
> PENTAX smc DA 17-70mm f/4 AL [IF] SDM $ 499.95
>
> PENTAX HD D FA 24-70mm f/2.8ED SDM WR $1299.95
>
> PENTAX smc DA* 50-135mm f/2.8 ED [IF] SDM $1049.95
>
> PENTAX smc DA* 60-250mm F4 [IF] SDM $1299.95
>
>
> To start, I am looking at the DA 17-70 to roughly cover the same range
> as the 18-55 and luckily it's the lowest priced one. B&H has it
> listed for $350, Amazon $300.
>
> Online reviews are hit and miss on this (SDM focusing issues).
>
> I'd like to get PDML thoughts, so fire away!
>
> Thanks!
> Ed
> http://www.flickr.com/photos/edkeeney/
>
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