The lens does not perform the best at 15 and 45mm. I found that shooting around 24mm provided the very best image. I only use the extremes if I absolutely have to.

• +

  Small, Good auto focus, great colors, good sharpness

• -

  Construction quality, weakest at 15 and 45

Great lens. One of the best lenses to get for the pentax q. We went to costa rica and this lens took amazing pictures of the animals and it was so sharp. Also great bokey effect as well. I had a camcorder with me as well, but this lens mades the video quality a huge difference.

I use my mirrorless camera primarily for street photography, since it is less conspicuous than a DSLR with zoom or telephoto lens. I love the size of the lens, very compact and light. The zoom is smooth and easy, and the autofocus is quick.

I purchased the lens about 7 months ago, took a few shots, worked ok,, then never used it until 4 weeks ago. After about another 10 shots in no extreme conditions whatsoever, the autofocus does not work, no matter what setting, manual focusing does not either.

This is a good lens when it works. There is a history of this lens having focusing failure for no apparent reason. Because the focus is electrical, when the focus fails the lens is unusable and is usually replaced rather than repaired. You might want to get an extended warranty if you can.

This is an amazing lens that does everything you'd want it to. It's light, fast and extremely versatile. The colours are great and the image quality is excellent. Sharp images from f/2.8 and upward.

• +

  Sharp, great FoV range

• -

  None, possibly the best lens on the system

It has a known issue of the internal focusing failing without cause, unrepairable if out of warranty, take your chances on a replacement from Pentax if under warranty. Because it is a focus-by-wire, it appears to be a failure of the circuitry, when it fails it cannot be used in any mode.

• +

  Weight, IQ

• -

  Fragile, unrepairable

If you have a Pentax Q, this is a great addition, making an equivalent 84-252 zoom lens. I'm happy with the performance, but even better... It was in a thin microfiber lens bag, and I dropped it from waist high onto a concrete floor. No detectable damage at all.

perfect for my pentax q camera arrive on time

This is a really high quality lens. I love taking this attached to my Pentax Q10 for sporting events and concerts where full size SLR's are not allowed. The photos for this review were all taken from the same location about 60 yards from the stage.