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Sigma 18-250mm f/3.5-6.3 DC OS HSM Autofocus Zoom Lens For Pentax Cameras

B&H # SI1825035CP Mfr # 880-109
No Longer Available
Product Highlights
  • For Pentax Cameras

The Sigma 18-250mm F3.5-6.3 DC OS HSM Autofocus Zoom Lens utilizes an anti-shake compensation function, with a 13.8 times zoom ratio. This lens's Hybrid Optical Stabilizer provides not only an anti-shake function for the camera body, but also compensates for image shaking in the view finder as the Optical Stabilizer is built in to the lens.

Four special low dispersion glass elements and three aspherical lens elements, results in excellent image quality throughout the entire zoom range. With a minimum focusing distance of 17.7" at all focal lengths and a maximum magnification of 1:3.4 reproduction ratio, this wide-range zoom is great for close-up photography as well as for telephoto shooting.

Note! This lens is only for APS-C / DX sensors (not full frame).

Optical Stabilizer
Low Dispersion Glass
Super Multi-layer Coating
Inner Focusing System
Magnification of 1:3.4 For Close-up Photography
Petal-type Lens Hood
Performance
Focal Length 18 - 250mm
Aperture Maximum: f/3.5 - 6.3
Minimum: f/22
Camera Mount Type Pentax K
Format Compatibility Pentax Digital (APS-C)
Angle of View 69.3° - 5.7°
Minimum Focus Distance 1.48' (45 cm)
Magnification 0.29x
Maximum Reproduction Ratio 1:3
Elements/Groups 18/14
Diaphragm Blades 7
Features
Image Stabilization Yes
Autofocus Yes
Tripod Collar No
Environmental
Physical
Filter Thread 72 mm
Dimensions (DxL) Approx. 3.1 x 4.0" (7.87 x 10.16 cm)
Weight 1.39 lb (630 g)
Sigma 18-250mm f/3.5-6.3 DC OS HSM Autofocus Zoom Lens For Pentax Cameras
  • Petal-Style Lens Hood
  • Front Lens Cap
  • Rear Lens Cap
  • 1-Year Worldwide Warranty + 3-Year Extended USA Warranty
  • REVIEW SNAPSHOT®

    by PowerReviews
    Sigma18-250mm f/3.5-6.3 DC OS HSM Autofocus Zoom Lens For Pentax Cameras
     
    4.5

    (based on 16 reviews)

    Ratings Distribution

    • 5 Stars

       

      (9)

    • 4 Stars

       

      (6)

    • 3 Stars

       

      (1)

    • 2 Stars

       

      (0)

    • 1 Stars

       

      (0)

    100%

    of respondents would recommend this to a friend.

    Pros

    • Strong construction (9)
    • Fast / accurate auto-focus (7)
    • Consistent output (6)
    • Rugged (6)
    • Durable (5)

    Cons

    • Heavy / bulky (3)
    • Poor in low light (3)

    Best Uses

    • Landscape/scenery (10)
    • Wildlife photos (10)
    • Sports/action (5)
    • Macro photography (3)
    • Travel (3)
      • Was this a gift?:
      • No (10)
      • Reviewer Profile:
      • Photo enthusiast (10), Semi-pro photographer (3)

    Most Liked Positive Review

     

    Great All round lens

    I mostly use the lens as a general zoom lens, for on holiday, outdoors etc.

    The one of the best things about the lens is the OS. The Pentax K7 has...Read complete review

    I mostly use the lens as a general zoom lens, for on holiday, outdoors etc.

    The one of the best things about the lens is the OS. The Pentax K7 has inbuilt image stabilisation, however i find at telephoto lengths (over 150mm) the lens stabilisaion is better by approx 2 stops and really allows you to hand hold at 250mm.

    Only real negative is the lens's width and weight, at 660g it is abit on the weighty side however it is still fairly balanced on the body.

    Vignetting is there at 18-35mm unless you stop down but detail and resolution appears to be quite substantial. Photo's seem to have a decent amount of pop between 35mm and 120mm.

    Pincushion is well controlled.

    HSM focus in this lens is not fast and is roughly equivilent to pentax and their DA* 16-50mm F2.8 Lens wide angle and wide open. The focussing hunts (a little) at the telephoto end indoors dimly lit, due to an aperture of F6.3 and The K7 AF assist light helps substantially. If you own a K10 or K20d the AF will stuggle indoors if it is dimly lit.

    VS

    Most Liked Negative Review

     

    Might not be a good match to K2000(K-M)

    Bought this lens after I saw results from my friend's Canon camera in hope to ease myself from changing lenses. However, I find the images coming out quite blurry even when the VR was...Read complete review

    Bought this lens after I saw results from my friend's Canon camera in hope to ease myself from changing lenses. However, I find the images coming out quite blurry even when the VR was on. Comparing with my 18-55mm kit lens and 70-300mm Tamron zoom, I'm rather disappointed. The images also tends to be a little dull. Used it to shoot an indoor family gathering with external flash, it struggled to focus and many images came out blurry. At 1.4lbs, it's heavier than my 70-300mm lens, thus, might be hard to hold steady if you are a petite lady like me.

    Reviewed by 16 customers

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    Displaying reviews 1-16

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    5.0

    OH YA BABY!

    By T-Money

    from Roy, UT

    About Me Photo Enthusiast

    Verified Buyer

    Pros

    • Consistent Output
    • Durable
    • Fast / accurate auto-focus
    • Rugged
    • Strong Construction

    Cons

    • Poor in Low Light

    Best Uses

    • Indoors/Low Light
    • Landscape/Scenery
    • Macro Photography
    • Sports/Action
    • Weddings/Events
    • Wildlife Photos

    Comments about Sigma 18-250mm f/3.5-6.3 DC OS HSM Autofocus Zoom Lens For Pentax Cameras:

    I am an amateur photographer; meaning I don't make my living by my photography. I have sold many of my pictures and I have been in photography for 20 plus years. I love it! I did a lot of research before I made this purchase, and I can tell you it was worth it! The Sigma 18-250 lens is fantastic if you are looking for an all around do everything lens. Works really well if you find your self in a situation where you don't have time to switch out lenses. Product is very well made and it is made in Japan, not China. Zoom is a little stiff, but I am sure this will get better as it gets used, it already has a little. I shoot with a Pentax K-5 and I noticed that all my pictures were somewhat blurred. The Sigma lens has an Optical Stabilization control and my Pentax has the shake reduction in the body and I found out that the two of them do not play well with each other. No biggie I just turn one of them off and wham; crystal clear pictures! I have also noticed that the colors in my pictures are a tad brighter (healthy looking) and have really good depth to them. The prime lenses are great, but I think everyone should have one of these in their bag! Great lens, and B&H is great to work with as well.

    • Was this a gift?:
    • No

    Share this review

    (0 of 1 customers found this review helpful)

     
    5.0

    Great walk around lens.

    By Dancing Frog

    from Coos Bay, OR

    About Me Photo Enthusiast

    Verified Buyer

    Pros

    • Consistent Output
    • Durable
    • Easily Interchangeable
    • Nice Bokeh
    • Rugged
    • Strong Construction

    Cons

      Best Uses

      • Indoors/Low Light
      • Landscape/Scenery
      • Sports/Action
      • Wildlife Photos

      Comments about Sigma 18-250mm f/3.5-6.3 DC OS HSM Autofocus Zoom Lens For Pentax Cameras:

      The 2nd days I got it in my hands, I headed for a local flower gardend. The best way I know how to check sharpness and color. Got home and downloaded and wow.

      • Was this a gift?:
      • Yes

      Share this review

      (0 of 1 customers found this review helpful)

       
      5.0

      The best purchase I have done

      By DA Archgraphics

      from Guttenberg, NJ

      About Me Semi-pro Photographer

      Verified Buyer

      Pros

      • Consistent Output
      • Fast / accurate auto-focus
      • Rugged
      • Strong Construction

      Cons

        Best Uses

        • Landscape/Scenery
        • Sports/Action
        • Wildlife Photos

        Comments about Sigma 18-250mm f/3.5-6.3 DC OS HSM Autofocus Zoom Lens For Pentax Cameras:

        With this lens I can have all the range capacity that I usually need, without changing from my old 18-55 to the 50-200 that I bought a couple of years ago.

        • Was this a gift?:
        • No

        Share this review

        (1 of 1 customers found this review helpful)

         
        4.0

        Nice Lens

        By Petmis

        from Halifax, NS

        About Me Photo Enthusiast

        Verified Buyer

        Pros

        • Convenient
        • Great Range
        • Price
        • Strong Construction

        Cons

        • Heavy
        • IQ past 100 mm is soft

        Best Uses

        • Street photography
        • Wildlife Photos

        Comments about Sigma 18-250mm f/3.5-6.3 DC OS HSM Autofocus Zoom Lens For Pentax Cameras:

        Lens is really nice for the focal range. It's soft past the 100mm mark but the convenience of the range more than makes up for that. The IQ up to 100mm is as good or better than my kit lens for sure.It's quite a heavy lens so I wouldn't recomend carrying it around your neck but I have a good shoulder strap so I don't really notice it.Bokeh is decent for a lens that runs f3.5 to 6.3.My biggest complaint would be that the lock button only locks it in place at 18mm, it doesn't lock at any other point so it doesn't help against lens creep though I haven't yet noticed any. I've also noticed a tiny bit of front focusing.

        • Was this a gift?:
        • No

        Share this review

        (1 of 1 customers found this review helpful)

         
        5.0

        Good, all around useful lens

        By Noise

        from Chiangmai, Thailand

        About Me Photo Enthusiast

        Verified Buyer

        Pros

        • Consistent Output
        • Durable
        • Improves camera CG
        • Rugged
        • Strong Construction

        Cons

        • No alignment mark

        Best Uses

        • Landscape/Scenery

        Comments about Sigma 18-250mm f/3.5-6.3 DC OS HSM Autofocus Zoom Lens For Pentax Cameras:

        Using a Pentax K10D for 4 years now and got really tired of carrying 2 lenses to cover the 18mm to 200mm range. Frequently didn't have the time to change lenses and still get the shot. Couldn't find a Pentax 18-200mm telephoto so looked at the other makes.

        Settled on the Sigma 18-250mm for the extra 50mm of range. Glad I did. That extra "capability" has been very useful so far in just these first 2 months.

        I photograph landscapes, village scenes, people, etc., outdoors, mostly. I am getting good, sharp shots at all ranges with clear colors. It compliments the cameras capabilities very nicely.

        I find the internal image stabilization much more effective than the camera's. But some of that may be because I also find what I consider the "good" heft to the lens (heavier than I expected) ads to my ability to hold the camera steady. It moved the center of gravity a little forward to where my two handed grip is steadier.

        I got some surprisingly good hand held close ups of insects when unexpected opportunities arose.

        The slightly slower auto-focus turned out to be a non-problem after the first few shots and I got used to it.

        Works well with a fill flash outside. Have not used it in doors with or without a flash yet.

        It has turned out to be exactly what I hoped for; I got my money's worth.

        • Was this a gift?:
        • No

        Share this review

         
        4.0

        good product

        By mike

        from new jersey

        About Me Photo Enthusiast

        Verified Buyer

        Pros

        • Fast / accurate auto-focus
        • Rugged

        Cons

        • Poor in Low Light

        Best Uses

        • Landscape/Scenery
        • Wildlife Photos

        Comments about Sigma 18-250mm f/3.5-6.3 DC OS HSM Autofocus Zoom Lens For Pentax Cameras:

        good photos
        fast focus

        • Was this a gift?:
        • Yes

        Share this review

        (1 of 1 customers found this review helpful)

         
        5.0

        Very flexible Lens

        By KAno

        from Adelaide, Australia.

        About Me Photo Enthusiast

        Verified Buyer

        Pros

        • Durable
        • Fast / accurate auto-focus
        • Strong Construction

        Cons

        • Heavy
        • Poor in Low Light

        Best Uses

        • Weddings/Events
        • Wildlife Photos

        Comments about Sigma 18-250mm f/3.5-6.3 DC OS HSM Autofocus Zoom Lens For Pentax Cameras:

        Great all round lens.
        Great for my Pentax KX

        • Was this a gift?:
        • No

        Share this review

        (3 of 3 customers found this review helpful)

         
        4.0

        Perfect vacation lenses

        By Maui Jim

        from Centerville, OH

        About Me Casual Photographer

        Verified Buyer

        Pros

          Cons

            Best Uses

              Comments about Sigma 18-250mm f/3.5-6.3 DC OS HSM Autofocus Zoom Lens For Pentax Cameras:

              At first I thought it was too big but once I attached it to my Pentax Kr all my fears disappeared. Good balance and easy to handle, I am very satisfied with my purchase and have taken so great pictures.

              • Was this a gift?:
              • No

              Share this review

              (2 of 2 customers found this review helpful)

               
              4.0

              all around lens

              By ck

              from San Jose,ca

              About Me Casual Photographer

              Verified Buyer

              Pros

              • Consistent Output
              • Strong Construction

              Cons

                Best Uses

                • Landscape/Scenery
                • Macro Photography
                • Wildlife Photos

                Comments about Sigma 18-250mm f/3.5-6.3 DC OS HSM Autofocus Zoom Lens For Pentax Cameras:

                The image is better than expected. Not bad for a superzoom lens. Combined with kr's high iso ability, very useful lens in almost all kinds of circumstance. Even at aperture f6.3, with usable iso3200 , I can still get quality image under average lighting environment.

                • Was this a gift?:
                • No

                Share this review

                (2 of 2 customers found this review helpful)

                 
                4.0

                Great All Around Lens

                By Tony

                from Evanston, IL

                About Me Photo Enthusiast

                Verified Buyer

                Pros

                • Easily Interchangeable
                • Fast / accurate auto-focus
                • Flexible
                • Nice Bokeh
                • Strong Construction

                Cons

                  Best Uses

                  • Landscape/Scenery
                  • Sports/Action
                  • Vacation
                  • Wildlife Photos

                  Comments about Sigma 18-250mm f/3.5-6.3 DC OS HSM Autofocus Zoom Lens For Pentax Cameras:

                  Lens is relatively light and easy to use. Lens optical stabilizer system works well and is easy to engage and synch with Pentax body mounted OSM by simply turning the Pentax OSM off. Focuses quickly in relatively low light and pictures are very pleasing across the entire zoom and aperture range. There may be lenses that zoom further, focus sharper or deliver better color saturation, but none does it all like this lens! You put it on and never have to take it off. Great for travel, delivers a zoom reach that rivals the point and shoots with the image quality and flexibility of a DSLR. Love it!

                  • Was this a gift?:
                  • No

                  Share this review

                  (2 of 2 customers found this review helpful)

                   
                  5.0

                  Good Investment

                  By Verigam

                  from Tennessee

                  About Me Semi-pro Photographer

                  Verified Buyer

                  Pros

                  • Compact and well made
                  • Easily Interchangeable
                  • Fast / accurate auto-focus

                  Cons

                    Best Uses

                    • Landscape/Scenery
                    • Macro Photography
                    • Sports/Action
                    • Wildlife Photos

                    Comments about Sigma 18-250mm f/3.5-6.3 DC OS HSM Autofocus Zoom Lens For Pentax Cameras:

                    Excellent clarity with good built in features. While the lens could be a little faster, it works in most situations and the price is also excellent. Highly recommended.

                    • Was this a gift?:
                    • No

                    Share this review

                    (1 of 2 customers found this review helpful)

                     
                    5.0

                    Great All Around Lens

                    By EZ

                    from NJ

                    About Me Photo Enthusiast

                    Verified Buyer

                    Pros

                    • Consistent Output
                    • Fast / accurate auto-focus
                    • Rugged
                    • Strong Construction

                    Cons

                      Best Uses

                      • Landscape/Scenery

                      Comments about Sigma 18-250mm f/3.5-6.3 DC OS HSM Autofocus Zoom Lens For Pentax Cameras:

                      Bought this lens for a trip to Tuscany and it performed flawlessly...

                      • Was this a gift?:
                      • No

                      Share this review

                      (3 of 3 customers found this review helpful)

                       
                      5.0

                      Fantastic By Super Zoom Standards

                      By Parallax

                      from SD

                      About Me Photo Enthusiast

                      Pros

                      • Easy to Use
                      • Great Picture Quality

                      Cons

                      • Bulky

                      Best Uses

                      • Landscape/Scenery
                      • Travel
                      • Wildlife Photos

                      Comments about Sigma 18-250mm f/3.5-6.3 DC OS HSM Autofocus Zoom Lens For Pentax Cameras:

                      My primary lens is a Pentax FA 31Ltd. I won't say that I can't tell a difference in image quality, but the difference is surprisingly little. I gave it 5 stars based on what I would expect from a zoom lens and the image quality is really quite impressive for a super zoom; better than anything else of this type that I've seen. It is a good, solid, well made lens and I couldn't be happier with it.

                      Share this review

                      (0 of 6 customers found this review helpful)

                       
                      3.0

                      Might not be a good match to K2000(K-M)

                      By NSL

                      from TX

                      About Me Semi-pro Photographer

                      Pros

                      • Built in shake reduction
                      • Compact
                      • Zoom range

                      Cons

                      • Bulky
                      • Dull image
                      • Hard to focus
                      • Sharpness
                      • Struggles in low light

                      Best Uses

                      • Family Photos
                      • Travel

                      Comments about Sigma 18-250mm f/3.5-6.3 DC OS HSM Autofocus Zoom Lens For Pentax Cameras:

                      Bought this lens after I saw results from my friend's Canon camera in hope to ease myself from changing lenses. However, I find the images coming out quite blurry even when the VR was on. Comparing with my 18-55mm kit lens and 70-300mm Tamron zoom, I'm rather disappointed. The images also tends to be a little dull. Used it to shoot an indoor family gathering with external flash, it struggled to focus and many images came out blurry. At 1.4lbs, it's heavier than my 70-300mm lens, thus, might be hard to hold steady if you are a petite lady like me.

                      Share this review

                      (1 of 1 customers found this review helpful)

                       
                      4.0

                      Great all around lens

                      By Nick

                      from Montreal, Canada

                      About Me Photo Enthusiast

                      Verified Buyer

                      Pros

                      • Durable
                      • Easy to Use
                      • Great Picture Quality

                      Cons

                      • Bulky

                      Best Uses

                      • Family Photos
                      • Travel

                      Comments about Sigma 18-250mm f/3.5-6.3 DC OS HSM Autofocus Zoom Lens For Pentax Cameras:

                      - Silent lens
                      - Great in-lens stabilization
                      - Great results
                      - Great vacation lens.
                      - a bit heavy.

                      Share this review

                      (9 of 9 customers found this review helpful)

                       
                      5.0

                      Great All round lens

                      By Manny

                      from Perth, WA, Australia

                      Verified Buyer

                      Pros

                      • Decent Image Quality
                      • Optical Image Stabilisati
                      • Wide Range Zoom

                      Cons

                      • SIZE
                      • Weight

                      Best Uses

                      • General Walk-About Lens
                      • Outdoor photography

                      Comments about Sigma 18-250mm f/3.5-6.3 DC OS HSM Autofocus Zoom Lens For Pentax Cameras:

                      I mostly use the lens as a general zoom lens, for on holiday, outdoors etc.

                      The one of the best things about the lens is the OS. The Pentax K7 has inbuilt image stabilisation, however i find at telephoto lengths (over 150mm) the lens stabilisaion is better by approx 2 stops and really allows you to hand hold at 250mm.

                      Only real negative is the lens's width and weight, at 660g it is abit on the weighty side however it is still fairly balanced on the body.

                      Vignetting is there at 18-35mm unless you stop down but detail and resolution appears to be quite substantial. Photo's seem to have a decent amount of pop between 35mm and 120mm.

                      Pincushion is well controlled.

                      HSM focus in this lens is not fast and is roughly equivilent to pentax and their DA* 16-50mm F2.8 Lens wide angle and wide open. The focussing hunts (a little) at the telephoto end indoors dimly lit, due to an aperture of F6.3 and The K7 AF assist light helps substantially. If you own a K10 or K20d the AF will stuggle indoors if it is dimly lit.

                      Share this review

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