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Key Features
- K-Mount Lens/APS-C Format
- 25.5-105mm (35mm Equivalent)
- Aperture Range: f/2.8 to f/22
- Two FLD Elements, One SLD Element
Mixing a useful zoom range with a sophisticated design, the Pentax K-mount Sigma 17-70mm f/2.8-4 DC Macro HSM is a Contemporary-series lens, also characterized by its compact, lightweight profile. The bright f/2.8-4 maximum aperture range pairs with the wide-angle to short-telephoto zoom range to create an ideal travel and everyday lens. The optical design uses a series of low dispersion and aspherical elements to control color fringing and distortion in order to realize high clarity and sharpness. A Super Multi-Layer Coating has also been applied to suppress flare and surface reflections for improved contrast in bright conditions. Also, this zoom sports a high 1:2.8 maximum magnification and 8.7" minimum focusing distance to suit working with close-up subjects.
More DetailsSee any errors on this page? Let us know
question
Hi does the filter mounting thread rotate? If if doesn't it will be graet for a polarising filter
No it does not. You may use a circular polarizer on this lens without any issue.
Date published: 2018-08-28
question
How well this lens will perform on the Pentax K3?
This lens will perform wonderfully on the Pentax K3 camera. The lens is fully compatible with it.
Date published: 2018-08-28
question
What does the OS setting do. I thought that OS was not available on the Pentax lens, but the switch is prominently there, unless the switch has no function. Also, I have an AF switch on the camera (Pentax K-x) and there is an AF switch on the lens. Do they both have to be on to have auto focus? What happens if one of the switches is on manual focus and the other is on auto focus, will this cause damage?
The Sigma 17-70mm f/2.8-4 DC Macro HSM Lens For Pentax does not have OS. Nor would there be an OS button on the lens. The images on our site are for illustrative purposes only, and it appears we are using a photo of one of the Nikon or Canon mount lenses for all of the other mounts (hence the OS in the photo). We apologize for any confusion this might cause. As for the AF switches, both the switch on the camera and lens would need to be switched to AF in order for AF to function. If one of the switches is on M, then autofocus will not function.
Date published: 2019-08-05
question
Will this lens work on the Pentax K-200?
The Sigma 17-70mm f/2.8 lens for Pentax is fully compatible with the Pentax K200D.
Date published: 2018-08-28
question
Buenas noches, este lente le sirve a una Canon 750D??
Puede usar este objetivo en una cmara EF-S como la Canon 750D. Necesitars este adaptador. Vello Pentax K Lente a Canon EF-S-Mount Adaptador de lente para cmara B & H # VELACEFPK. Sin embargo, esto no es ideal ya que no puede ajustar la apertura (que ser la parada ms lenta) y el enfoque es solo manual. Le recomendamos que obtenga la lente Sigma 17-70mm f / 2.8-4 DC Macro OS HSM para Canon B & H # SI1770284DCC en su lugar.
Date published: 2018-08-28
question
Does this lens work on a Pentax K1?
This lens can work on a Pentax K1, but since the lens is for an APS-C format Pentax DSLR, you will lose resolution and the image will crop on the K1.
Date published: 2018-08-28
question
If I buy this lens now does it have the new firmware on it? I heard there was a problem with the lens and the Pentax image stabilizations system. I read a firmware update was necessary for this lens.
The firmware update David D. is referring to is not for the camera, but for the Sigma lens itself. A compatibility problem was discovered earlier this year by members of the 'Pentax Forums' website wherein the focal length setting on the lens was not being delivered to the camera correctly, causing image stabilization errors with the camera's built-in camera shake feature. The result was images being more blurry when shake reduction was turned on (instead of less blurry). Sigma addressed the issue immediately upon being made aware of the problem -- to their great credit -- and corrected the problem via a firmware update (again, for the lens, not the camera). This firmware update needed for some versions of this lens can either be done by Sigma or via the Sigma USB Lens Dock they have available.B&H were made aware of the problem at the same time (Jan. 2015) via the 'Ask B&H Photo' section of the 'Pentax Forums' website by yours truly, but they were unable -- or unwilling -- to contribute anything to fixing the stock they had/have on-hand. Whether or not the current stock of Sigma 17-70mm lenses for Pentax that B&H currently has on-hand already have the updated firmware is a question only they can answer.
Date published: 2020-06-22
question
Hi, This lens is compatible with Sony NEX 7 ? Thanks Tommy
This lens will be compatible with a Sony NEX-7 only with the use of an adapter for Alpha mount to NEX E-mount: http://bhpho.to/1bKe4G1
Date published: 2018-08-28