Garbage/Trash, focus motor/ring failed in 4 months
UMDTERPS, B&H Photo
26 August 2015
Excerpt: I bought this lens for the weatherproof ability and the higher quality. I knew this lens may have a high fail rate, but I bought it anyway because I figured they fixed most of the issues because the lens has been on the market. Not the case. This lens stopped working after 4 months of light use.
Pros: Lightweight, Nice Bokeh, Rugged, Strong Construction
Excerpt: Bought new in Dec. 2008. I just had my 4th incident (2 SDMs) with this lens causing me to spend more than the cost new if I decide to have this last one fixed (I did get 1 deal on 1 SDM incident).
Summary: Bought this lens to go with my wonderful Pentax DA* 50-135. Unfortunately the lens that was delivered did not work right out of the box. The focus is stuck at infinity. When in AF the motor makes a quiet squeaking sound as it tries to change the focus but that is all.
Excerpt: The copy of the DA* 16-50mm I ordered was a huge disappointment. It front focused dramatically, and when it did manage to find focus, there was severe purple fringing. The overall image quality did not seem as good as my Pentax primes, even when neither of the above-mentioned problems reared its...
Excerpt: This is the second copy that I have bought in hopes that Pentax had cured their autofocus failures in the earlier units. I was wrong. To make matters worse, I also bought a K-5. I own two other DA* lenses and they are great! However, my new 16-50mm DA* started to fail on autofocus within 20 shots.
Excerpt: I had high hopes for this product, but they didn't come to pass. I have a K10 and wanted a fast lens for low light so I could avoid using a flash. I used the lens after installing the updated firmware, version 1.31.
Excerpt: I photograph events so the 16 to 50MM is a great range for getting the shot without moving. I sent the lens in for repair during the first year due to the zoom locking. The auto focus was average at best and now hardly works. I will send it in for another repair.