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This item is eligible for return within 30 days of receipt
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Availability:
Only 1 left in stock, order soon!
Arrives
Jun 27 – Jul 11
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Style: Pentax
Set: US Version
Features
- Designed specifically for APS-C sized sensors and the Pentax K-mount cameras.
- Internal focusing and zooming allows for more usability and functionality
- Minimum Focusing Distance 28 cm/ 11.0 in
- The 18-35mm is ideal for landscapes, portraits, still life, snap shots, casual, and close-ups
Description
First wide-angle to standard zoom lens to achieve a large aperture of 1.8
Brand: Sigma
Focal Length Description: 18-35 millimeters
Lens Type: Wide Angle
Compatible Mountings: Pentax K
Camera Lens Description: 35 millimetres
Focal Length Description: 18-35 millimeters
Lens: Wide Angle
Compatible Camera Mount: Pentax K
Maximum Focal Length: 35 Millimeters
Minimum Focal Length: 18 Millimeters
Lens Design: Zoom
Focus Type: Auto Focus
Lens Fixed Focal Length: 35 Millimeters
Lens Coating Description: Super Multi-Layer Coating
Zoom Ratio: 1.941
Image stabilization: no image stabilization
Real Angle Of View: 76.5 Degrees
Maximum Aperture: 1.8 Millimeters
Minimum Aperture: 16
Number of Diaphragm Blades: 9
Compatible Camera Models: Pentax K-mount cameras
Lens Mount: Nikon F
Brand: Sigma
Camera Lens: 35 millimetres
Model Name: 210306
UPC: 017441102552 085126210618
Manufacturer Part Number: 210109
Global Trade Identification Number: 18
Model Number: 210109
Item Weight: 810 Grams
Item Type Name: Digital-slr-camera-lenses.
Manufacturer: Sigma Corporation of America
Built-In Media: lens
Warranty Description: 4 Years
Has Self-Timer: No
Exposure Control Type: Automatic
Color: Black
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Jun 27 – Jul 11
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Style: Pentax
Set: US Version
Yes, it's big but if you want it for it can do there's no way around it that I know of. I did not want the f/1.8 just for its light gathering capability (although it doesn't hurt to have it) but more for the narrow depth of field it allows. For "environmental" portraits (i.e. not just a head shot but also including a good deal of the background for context) with that "full frame" look I don't think that there's a more versatile lens for APS-C cameras. Add in the fact that it's just about as sharp (if not sharper) than similar prime lenses and you've got a winner. Update: I forgot to mention that the build of the lens is great. I have some other EX DG Sigma lenses which were well built but this is a notch above those. The materials look like high quality, both the focus and zoom rings move smoothly and without any wobble.
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Reviewed in the United States on August 4, 2014 by N. S.
Style: Pentax
Set: US Version
Killer lens in ever way. I have absolutely zero complaints. I know 3rd party lenses often take heat for being cheaply made but this is truly a solid product. I knocked my tripod extended to 6 feet off the top of my SUV while shooting a few months ago and my camera and this lens took a tumble with it. After the fall from about 14 feet up onto solid pavement my camera's sensor cracked but this lens only suffered gashes on the front lip. I can no longer put filters on it but considering that fall I would absolutely say this product is well made. Oh, and did I mention that sharpness?
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Reviewed in the United States on January 27, 2016 by Amazon Customer
Style: Pentax
Set: US Version
I have had this lens for 6 months now and feel I can give a useful review. The first thing is this is a large and heavy lens. I carried it on a k3ii at the state fair for a full day and was always aware that it was there. This is not a lens that I can "forget" is there. Only my 60-250 f4 is larger and heavier. One thing that helps though is that it does not extend when zoomed. Some have complained that the lens cap is difficult to put on and does not stay on well; I find it takes a little more attention when installing but is not that difficult and stays on as well as any other I have. The lens shade is a nice small diameter, unlike the monster on the 12-24 f4, which makes it nicer when in the backpack and not on the camera. Focus is a real issue with this lens and many have given up on it for that reason, though some seem to get a reasonably good one out of the box. Mine was OK at all focal lengths except 35mm which I fixed with a -5 setting at that length with the dock. Now it focuses as well as any lens I have. Sharpness is very good but at 35mm my FA 35 f2 is just as sharp except wide open. I have used this lens indoors without a flash but you must remember that at large f-stops the depth of field is VERY shallow and focus must be spot on to get sharp results. Focus is fast and quiet and it does not hunt. There is some flair under certain conditions but this must be expected with 17 lens elements and so much glass.The build quality is equal to any Pentax lens I have. With the limited zoom range and size and weight that cannot be ignored I consider this lens somewhat of a niche lens; too limited to be a do all walk around lens but uniquely useful for certain applications and I am very glad to own it.
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Reviewed in the United States on September 3, 2016 by me
Style: Pentax
Set: US Version
I read a lot of glowing review of this lens, including on the (Amazon affiliate) dpreview.com and DXOmark. Everybody praised the fantastic performance ... 3 fast primes in one package. Well, this has been my dream since I take photos ... to have truly stunning image quality over a reasonable zoom range so no lens change is needed. So LBA kicked in, and I got this lens. At first, I couldn't believe how soft it is at f1.8. Didn't seem to match the razor sharpness everyone was talking about?! Until ... well ... until I realized that practically no image was in focus! Since my Pentax K3 has a very useful focus fine adjustment, I thought "no problem, lets fix it". A few hours later I gave up: This lens mis-focuses in a way I have never ever experienced before, not even with the most crappy third party lens from 20 years ago! The only way to describe it is "Focus Lottery"! No reproducable front or back focus ... the focus point is all over the place. Essentially random. Is this maybe Sigma's idea of an "art lens"? :) Since all my other lenses focus better than ever on my new K3, I can positively say its not the camera. After some more reading on the web, I realized I am not alone. There seems to be a number of other users with similar problems, since the lens was launched well over a year ago (I bought it in May 2015). Shame on Sigma that this is still not fixed! Thanks to Amazon for a hazzle free return policy! PS: yes, I also read (and can confirm) that it focuses well with life view. Well, this is not an option for me, as I don't use an SLR to be limited to life view. And yes, IF the lens focuses correctly, it exhibits stunning image quality. Actually better than some of my Pentax limited lenses! Shame I cannot use this and have to return to my old trusty Tammy 17-50 2.8 as a walkabout zoom.
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Reviewed in the United States on May 23, 2015 by amazon customer
Style: Pentax
Set: US Version
I had a 50mm prime f1.4 lens, and a 17-55mm f2.8 lens stolen out of my car. I loved (and needed) them both, and was not looking forward to the cost of replacing them... I was hesitant that this lens would replace them both, but I actually like it BETTER due to the flexibility it has. I don't miss either of my old lenses at all now that I have this.
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Reviewed in the United States on December 9, 2016 by Joelrunner
Style: Pentax
Set: US Version
Absolutely superb lens, highest quality wide angle zoom available for Pentax. Super, super sharp. Good zoom range and great low-light capability.
Reviewed in the United States on October 13, 2014 by Schuyler Matthews
Style: Pentax
Set: US Version
I thought after few years, Sigma would have fixed the Auto Focus issues with this lens (I use a Pentax K5II). Going back to seller today.
Reviewed in the United States on December 26, 2015 by Rock Chalk
Style: Pentax
Set: US Version
The sigma 18-35mm is both sharp and frustrating to use. The autofocus is not reliable. But after making adjustments with the USB dock I could get it working well except when shooting objects at infinity with the focal length set to 35mm. I use the Pentax k3 which has a fine adjustment for autofocus. I have managed to more or less get it working at all focal lengths except 35mm (when the object is very far away). This lens is unbelievably sharp for a zoom lens. I have 35mm 2.4, 40mm 2.8, and 50mm 1.4 prime lenses, and it is as sharp or sharper than all these primes. It is amazing in low light too, and sharp at f-1.8. If only the autofocus was more reliable! Live view is always sharp, and that is why it is so frustrating. l will keep adjusting the autofocus to see if I can get it working at all focal lengths. I will update this review in due time.
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Reviewed in the United States on August 20, 2015 by FastK5