Originally posted by ytterbium I apologize for a slight off topic, but since we now have 18-55 WR and 16-50 WR, by discontinuing the lens in the middle Pentax should go even further and make that position WR as well, to make it more competitive.
Otherwise, with camera like k-7 you're having serious downgrade if you're not willing to push the limits and get 16-50. Basically it is voiding the K-7 WR itself, since you're removing one of the most important seals (lens/mount - a big, exposed hole).
Otherwise one may be getting something like tamron 17-50/2.8 for that price.
I used to have the DA* 50-135 but I sold it feeling unsure about it's future as SDM failure may be it's demise, it had no warranty as I bought it from another user.
Now for the DA* 16-50, it comes to even larger problems. More SDM failures reported on this lens, huge de-centering problem that plagues this lens. Sure it's WR but I am not going to gamble it's future, especially with only 1 year warranty for these premium DA* lenses, one year for their top lenses.
This is the reason why I am most probably going to buy a Tamron 70-200 f/2.8 over the DA* 50-135, regardless of it's poorer AF and no weather-seals. As long as it's AF is guaranteed to last and a bonus is it's also full frame compatible without any problems. A shame for Pentax for not being able to make these premium line-up of DA*'s the quality that it should be, especially for a first party lens maker.
Also it's the main reason why I am avoiding the DA* 16-50. Sure I am not taking advantage of the K-7's WR, but believe it or not I have never taken it out in the rain before. I believe that I am not limiting my K-7 in any way at all. The FA Limiteds are not weather sealed, the DA Limiteds are not weather sealed for example. I'm quite sure that there are a lot of people who limit themselves to primes almost entirely.
Due to the K-x and K-m, I am guessing Pentax are planning to make more non-weathersealed bodies in the future so I don't entirely think Pentax is trying to get rid of non-WR lenses just replace them with WR ones. Whatever they're doing, I just hope it's not some hidden illusion for this price-rise that's getting closer to Canikon prices.
Last edited by LeDave; 12-05-2009 at 06:39 AM.