- HSM (Hyper-Sonic Motor) ensures a quiet & high-speed auto focus
- A Super Multi-Coating is used to reduce the occurrence of flare & ghosting and delivers high performance across the entire focusing range
Product Description
Sigma’s 17-70mm F2.8-4.5 DC Macro HSM is the practical zoom! A large-aperture, standard zoom lens for digital cameras with an open-aperture value of F2.8 (at 17mm) and covers the most frequently used focal lengths. With an aperture fast enough to be used in many light situations, it’s close focusing for use with very small object and its outstanding optical performance make this is an ideal all-around lens for landscapes, portraits, still life studies, group sho… More >>
Sigma 17-70mm f/2.8-4 DC Macro OS HSM Lens for Pentax Mount Digital SLR Cameras
Tags: 1770mm, cameras, Digital, f/2.84, lens, Macro, Mount, Pentax, Sigma
Save your money and do not buy this (short and sweet). I returned the first one and the replacement was also a disappointment. It’s just not worth your time and money to be playing around with a bad lens (period).
Rating: 1 / 5
Tends to be a good lens, but after I bought it, I had to return it back due to front focus problems.
Rating: 1 / 5
I bought this lens to take on vacations, and as a general walk around for my Canon T1i. I wanted to be able to take landscape shots, have a little reach on the tele end, and the macro was a bonus. I’ve never purchased a non Canon lens before, but heard good things about the previous version of this lens.
First thing I noticed, the lens does not fit onto the camera with the ease that a Canon lens does. It goes on, but required significant more torque, and this worried me. What would this do to my camera body over the long haul.
The HSM focus worked, but was not nearly as silky as I experience with the kit lens. I didn’t really appreciate this until I put the kit lens back on, after shooting with the Sigma all day, and noticed how much quieter and smoother the USM was on the Canon.
And finally, the real reason I sent this lens back, is the really significant front focus issue. I noticed the images I took seemed OOF, so I did a test on a tripod with batteries lines up at an angle to the camera. Checked the shots out in DPP, and voila–the battery in front of the hot focus point was sharp and on the money. But the focus point was definitely blurry. Now granted, this was wide open, but that is where this problem is most easily detected. Even stopped down to f8, it didn’t seem sharp to me.
So back it went, and after much research, I ordered the Canon 15-85. Yep, it’s more money than the Sigma, but the 15-85 gets really good reviews, and its a Canon. And I couldn’t justify the over 1000 dollar price tag of the much touted 17-55. It’s drool worthy for sure, but my husband would not be amused! So I’m keeping my fingers crossed that I love the 15-85.
From now on, it’s Canon for me.
Rating: 1 / 5
This is probably the last time I try a sigma lens. I previously got the older non-OS 17-70, and it was not very sharp. This time, I was very excited to see if the newer product fared any better. But no, clearly this new lens, straight-out of the box, was focusing at a point in front of the intended target. This problem was made even more obvious when I immediately switched to my trusty Canon 17-55. Oh well…
Rating: 1 / 5
I bought this lens for my Nikon D5000. It works great with this camera, very fast lens (good for low light. Images have been very sharp. Macro works great..I have used the macro feature for shooting family history documents. I have been very pleased with this lens.
Rating: 5 / 5