Originally posted by hjoseph7 This is a hard choice. So far I have spent 2 months trying to decide on a lens. Of course I don't have deep pockets so I'm trying to make my first purchase as satisfying as possible. Too bad there is not more of a choice when it comes to WR lenses. Some of these lenses sound good on paper until you read the entire review(s) and come up with Deal-Breakers. The 16-50mm and the 50-135mm have issues with the SDM motor, plus they are big and heavy. The 17-70mm f4 sounds pretty good until you read about outrageous softness in the 50-70mm range(according to some reviews). Personally I think the pancakes are too small and look dorky on the K5, sort like those tiny mirror-less cameras with HUGE lenses. The 20-40 is a beautiful lens but for the money I think 20-60mm/20-50mm would have been better. The 18-135mm which is weather resistant seems like a nice compromise, but it has so many issues that I would probably have to re-purchase a whole set of lenses that cover that range.
Oh well there is no such thing as the perfect lens, but the 16-45(non-WR) seems to be at the top of my list because of the extra wide angle which I like. Looks like a nice walk-around lens not too big not too small although I hear it is a little noisy.
I was like you always complaining of lenses problems. I just wasted my time. You know what? There not a single lens here that is perfect. And if it is, it likely more a Zeiss costing a few thousand $, full manual than anything else.
You don't buy gear to complain about its weaknesses, you learn to use gear so you get the best out of it.
From you specifics comments:
- New version of 17-70, 16-50 & 50-135 no longer have SDM problems. (I have a new DA*50-135 version).
- 17-70 has no softness problem @70mm. I have it and it does a good job. Maybe wide open the corners are not so good. But who really care? You shouldn't put the subject in the corner anyway! And for scenery where everything is shaprt, you suposed to use f/8, not f/4 so the problem is gone ! This comment is valid for all lenses: they are all soft at corner wide open and all zoom are better at some focal than other. This is normal and if you know how to take photo, you'll have no problem at all with that.
- I don't get your comment on pancakes? Are we really having a discussion on fashion applyed to a camera? Having a camera with you, a bulky and hugly black one with you, just make you look like a tourist, and remove most of you sex appeal and elegance you could have. Admit it! Getting something bigger may help to compensate on something else, true, but it will in practice be worse for all other people looking at you except maybe fellow photographs that also have something to compensate!
- 20-40 is small because of it's small range... If you want wider range, it will be bigger, and that's the 16-50 or it will be of less quality and this is 18-55... Honestly, with so many transtandard (DA17-70, DA*16-50, DA20-40 ltd, DA16-45, sigma/tamrom 17-50 f/2.8, sigma 24-70 f/2.8, tamrom 28-75 f/2.8, sigma 18-35 f/1.8, sigma 17-70 f/2.8-4...) to choose from nothing is missing, except maybe you to decide.