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Pentax smc DA 50mm f/1.8 Lens

B&H # PE5018DA MFR # 22177
In Stock
Order in the next 00:00:00 hours to ship Today

Product Highlights

  • Very Fast f/1.8 Maximum Aperture
  • Excellent Low-Light Lens
  • Pleasing Bokeh (Out-of-Focus Areas)
  • SP Coating Repels Dust, Water, Grease
  • For APS-C Digital K-Mount Cameras
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Price: $246.95

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The smc DA 50mm f/1.8 Lens from Pentax is a fast f/1.8 lens for cameras with a Pentax K mount. Mounted to a camera with an APS-C sensor, this lens gives an angle of view equivalent to a 76.5mm telephoto lens--ideal for portraits. The wide f/1.8 aperture makes this an essential lens for working in low light, and it also delivers beautiful bokeh (the out-of-focus portion of a photograph). This lightweight (4.3 oz) lens is very compact--just 1.5" (3.8 cm) long. The addition of Pentax Super Protect (SP) coating to the lens helps prevent dust, water, grease and other substances from attaching themselves to a lens and degrading image quality.

Very fast f/1.8 maximum aperture is ideal for low light situations and produces pleasing bokeh in the out-of-focus areas of a photograph
76.5mm telephoto equivalent in APS-C format
The lens is treated with the Pentax's original SP (Super Protect) coating, which repels dust, water, grease, and other substances that may adhere to the surface of the lens. The protective coating promotes trouble-free use in all kinds of shooting situations.
Performance
Focal Length 50mm
Comparable APS-C Focal Length: 76.5 mm
Aperture Maximum: f/1.8
Minimum: f/22
Camera Mount Type Pentax K
Format Compatibility Pentax Digital (APS-C)
Angle of View 31.5°
Minimum Focus Distance 1.48' (45.11 cm)
Magnification 0.15x
Elements/Groups 6/5
Diaphragm Blades 7
Features
Image Stabilization No
Autofocus Yes
Tripod Collar No
Physical
Filter Thread Front:52 mm
Dimensions (DxL) Approx. 2.5 x 1.5" (6.35 x 3.81 cm)
Weight 4.3 oz (122 g)
Pentax smc DA 50mm f/1.8 Lens
  • Front and Rear Lens Caps
  • 1-Year Limited Warranty
  • REVIEW SNAPSHOT®

    by PowerReviews
    Pentaxsmc DA 50mm f/1.8 Lens
     
    4.6

    (based on 97 reviews)

    Ratings Distribution

    • 5 Stars

       

      (67)

    • 4 Stars

       

      (26)

    • 3 Stars

       

      (4)

    • 2 Stars

       

      (0)

    • 1 Stars

       

      (0)

    96%

    of respondents would recommend this to a friend.

    Pros

    • Lightweight (78)
    • Fast / accurate auto-focus (66)
    • Nice bokeh (65)
    • Consistent output (49)
    • Easily interchangeable (44)

    Cons

    • Weak casing (11)
    • Plastic mount (6)
    • Slow focus (3)

    Best Uses

    • Low light (66)
    • Landscape/scenery (40)
    • Night photography (34)
    • Weddings (34)
    • Sports/action (12)
      • Reviewer Profile:
      • Photo enthusiast (46), Semi-pro photographer (16), Casual photographer (14), Pro photographer (6), Photography student (5)
      • Was this a gift?:
      • No (83)

    Most Liked Positive Review

     

    Great budget prime

    Bought this as the first prime lens for my new Pentax K-5 system. The first thing that struck me when I used it was how noisy the auto focus was. Guess years of...Read complete review

    Bought this as the first prime lens for my new Pentax K-5 system. The first thing that struck me when I used it was how noisy the auto focus was. Guess years of Canon USM has spoiled me. After that auditory shock though, it was all uphill. The focusing is spot on on my K-5, and it is sharp from wide-open as far as I can tell. The Bokeh is nice too - much better than the Canon EF 50 F/1.8. But then that lens is half the price!I like the build and the design of the lens... solid plastic and compact. The plastic mount doesn't bother me... but yeah for $ + one could expect a metal mount.But we are paying for the Pentax clarity and contrast...both of which are there in loads. I think the bigger decision for potential buyers should be this against the trusty Pentax FA 50 F/1.4. You can get used copies of the same for the cost of a new 50 F/1.8. I decided for the new 1.8 because I believe that technology becomes better with time. Why buy old when one can buy new? ;) So far - haven't been disappointed.

    VS

    Most Liked Negative Review

     

    Plastic Fantastic

    It is noticably soft wide open, so don't buy it for the speed. It's decent when stopped down to f2.8; by f5.6 it's as sharp as anything. Auto focus is VERY loud but...Read complete review

    It is noticably soft wide open, so don't buy it for the speed. It's decent when stopped down to f2.8; by f5.6 it's as sharp as anything. Auto focus is VERY loud but quick.

    The lens mount is plastic so I doubt it would stand up to heavy use. I honestly don't have a problem with the rest of the plastic. Structurally it seems sturdy enough, and plastic is probably more thermally stable than metal anyway. The mount though, should be a little tougher, in my opinion.

    This one was included with the K-3 by B&H, so I'm grateful to have it and it will see some use, but overall it isn't as good as other normal primes. I'd say it's worth having in the bag just because it weighs next to nothing.

    Reviewed by 97 customers

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    Displaying reviews 1-20

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    5.0

    All the Pentax items I have purchased are great.

    By Tony

    from I live in Tallahassee, Florida

    About Me Photo Enthusiast

    Verified Buyer

    Pros

    • Durable
    • Easily Interchangeable
    • Fast / accurate auto-focus
    • Lightweight
    • Rugged
    • Strong Construction

    Cons

      Best Uses

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

      Comments about Pentax smc DA 50mm f/1.8 Lens:

      It was meant to be a part of the Pentax K-50 family and it is. Although I wish I could have afforded the f/1.4 lens, this lens works fine and is well made and a perfect addition to the Pentax K-50 family of DSLR cameras. Highly recommend it. Am waiting for the 50-200mm lens and feel certain it will live up to the rest of the Pentax K-50 family of lenses and accessories. No complaints. Highly recommend it.

      • Was this a gift?:
      • No

      Share this review

      (1 of 1 customers found this review helpful)

       
      5.0

      Great clarity and low-light performance

      By Matthew

      from San Francisco Bay Area, California

      About Me Photography Student

      Verified Buyer

      Pros

      • Consistent Output
      • Fast / accurate auto-focus
      • Lightweight
      • Nice Bokeh

      Cons

        Best Uses

        • Indoors/Low Light
        • Night Photography
        • Portrait
        • Weddings/Events

        Comments about Pentax smc DA 50mm f/1.8 Lens:

        I think, given the price, this is an exceptional lens and it's quickly becoming my favorite even for things where I might have another lens better suited to the task.
        Noisy as all of the screw-drive lenses, but I expected it.
        For the amount I spent, I couldn't be more pleased.

        • Was this a gift?:
        • No

        Share this review

         
        5.0

        FAST!!

        By TR

        from Tucson, AZ

        About Me Photo Enthusiast

        Verified Buyer

        Pros

        • Consistent Output
        • Durable
        • Easily Interchangeable
        • Fast / accurate auto-focus
        • Lightweight

        Cons

          Best Uses

          • Indoors/Low Light
          • Landscape/Scenery

          Comments about Pentax smc DA 50mm f/1.8 Lens:

          I use the lens for stop action in my animal photos. Pets, horses, etc.

          The lens is fast and high quality.

          • Was this a gift?:
          • No

          Share this review

           
          5.0

          Great value

          By Mark

          from NJ

          Comments about Pentax smc DA 50mm f/1.8 Lens:

          Really pleased. For the price and results you can't beat it!

          Share this review

           
          5.0

          Very pleased

          By Kristi

          from Hinesville

          Comments about Pentax smc DA 50mm f/1.8 Lens:

          I am pleasantly surprised with how necessary this lense was needed. Shipping was amazingly quick

          Share this review

           
          4.0

          Great Image Quality

          By Digby

          from Manhattan, NY

          About Me Semi-pro Photographer

          Verified Buyer

          Pros

          • Consistent Output
          • Easily Interchangeable
          • Fast / accurate auto-focus
          • Lightweight
          • Nice Bokeh

          Cons

          • Maybe A Weak Mount

          Best Uses

          • Indoors/Low Light

          Comments about Pentax smc DA 50mm f/1.8 Lens:

          I love what this lens produces. Great resolve given the format, pleasing Bokeh, very lightweight, manual focus is nice and smooth (which it should be of course). As others have mentioned, and I'm not yet sure if it's a gripe, but the bayonet mount is a composite material (read not metal), and I'm not sure how it'll do in the long run. Only time will tell there, but my skepticism grants four stars only.

          • Was this a gift?:
          • No

          Share this review

          (1 of 1 customers found this review helpful)

           
          5.0

          Nifty Fifty is a Winnner

          By Ray

          from Western PA

          About Me Semi-pro Photographer

          Verified Buyer

          Pros

          • Crisp Images
          • Fast / accurate auto-focus
          • Great depth of field
          • Lightweight
          • Nice Bokeh

          Cons

          • Weak Casing

          Best Uses

          • Newborn Photographer

          Comments about Pentax smc DA 50mm f/1.8 Lens:

          I am a newborn and maternity photographer. On my first photo shoot with this lens, it never left my camera body. I love the crisp, sharp images it produces and the incredible bokeh.

          • Was this a gift?:
          • No

          Share this review

          (2 of 2 customers found this review helpful)

           
          5.0

          Great Value

          By zgulsby

          from Delaplane, VA

          About Me Photo Enthusiast

          Verified Reviewer

          Pros

          • Consistent Output
          • Fast / accurate auto-focus
          • Lightweight
          • Nice Bokeh

          Cons

          • Loud Autofocus

          Best Uses

          • Indoors/Low Light
          • Landscape/Scenery

          Comments about Pentax smc DA 50mm f/1.8 Lens:

          This is the first lens I used with my K-3. I was entirely prepared to sell it off for the DA* 55, but I've been so pleasantly surprised by the output that I'm absolutely keeping it.

          I understand why some would complain about the somewhat loud AF and the plastic casing, but neither of those aspects are concerning to me.

          • Was this a gift?:
          • No

          Share this review

           
          5.0

          A budget portrait lens

          By KW

          from OH

          About Me Casual Photographer

          Verified Buyer

          Pros

          • Easily Interchangeable
          • Fast / accurate auto-focus
          • Lightweight
          • Nice Bokeh

          Cons

            Best Uses

            • Night Photography
            • Outdoors Portrait

            Comments about Pentax smc DA 50mm f/1.8 Lens:

            If you don't care about the plastic mount, it's a perfect outdoor portrait lens for non-professionals. Good sharpness and bokeh. Sometimes hunts in low light.

            • Was this a gift?:
            • No

            Share this review

             
            5.0

            Awesome!

            By Geetea

            from Phoenix, AZ

            About Me Casual Photographer

            Verified Buyer

            Pros

            • Durable
            • Fast / accurate auto-focus
            • Lightweight
            • Nice Bokeh
            • Rugged

            Cons

            • plastic mount

            Best Uses

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

            Comments about Pentax smc DA 50mm f/1.8 Lens:

            Lightweight, plastic, but with a quality feel. Excellent sharpness!

            • Was this a gift?:
            • No

            Share this review

             
            5.0

            A nice lens, great addition to my K5-2S

            By Dave

            from Charlottesville, Virginia

            About Me Photo Enthusiast

            Verified Buyer

            Pros

            • Easily Interchangeable
            • Fast / accurate auto-focus
            • Lightweight
            • Rugged
            • Strong Construction

            Cons

              Best Uses

              • Indoors/Low Light
              • Landscape/Scenery
              • Night Photography
              • Sports/Action

              Comments about Pentax smc DA 50mm f/1.8 Lens:

              On a Pentax K5-2S. I like the lens. Not too heavy, focuses well.

              • Was this a gift?:
              • No

              Share this review

               
              5.0

              Great lense

              By snowmonkey

              from utah

              Comments about Pentax smc DA 50mm f/1.8 Lens:

              This is my first DSLR lens. I am not a pro at all, I am just starting out. For me this lens is awesome and takes great pictures. I have no regrets to buying this lens.

              Share this review

              (1 of 2 customers found this review helpful)

               
              4.0

              Interesting but not impressive!

              By meyti

              from Denver, Co

              About Me Photo Enthusiast

              Verified Buyer

              Pros

              • Fast / accurate auto-focus
              • Lightweight

              Cons

                Best Uses

                • Indoors/Low Light

                Comments about Pentax smc DA 50mm f/1.8 Lens:

                This lens will improve your photography capacity in a low light environment. But don't get too excited. If you like portrait photography, then I would say this is a good choice. but if you want to shoot in a room, you would not have much space to cover a large area.
                Overall, with the price you pay for this lens, I evaluate it as a good choice. It is small and and light.

                • Was this a gift?:
                • No

                Share this review

                 
                5.0

                smc DA 50mm f/1.8 Lens by Pentax

                By Dave

                from PA

                About Me Photo Enthusiast

                Verified Buyer

                Pros

                • Consistent Output
                • Durable
                • Easily Interchangeable
                • Fast / accurate auto-focus
                • Lightweight
                • Nice Bokeh
                • Rugged
                • Strong Construction

                Cons

                  Best Uses

                  • Indoors/Low Light
                  • Landscape/Scenery

                  Comments about Pentax smc DA 50mm f/1.8 Lens:

                  The Pentax 50mm lens is used for taking pictures for sketches drawings.
                  I like it because there is no distortion and everything looks normal.
                  The drive motor on the lens is a little noisy but it doesn't matter for what it's being used for.

                  • Was this a gift?:
                  • No

                  Share this review

                   
                  5.0

                  good lenses

                  By flash

                  from richmond,va

                  About Me Casual Photographer

                  Verified Buyer

                  Pros

                  • Lightweight
                  • Nice Bokeh

                  Cons

                    Best Uses

                    • Indoors/Low Light
                    • Sports/Action

                    Comments about Pentax smc DA 50mm f/1.8 Lens:

                    I use for indoor Sport,karate.

                    • Was this a gift?:
                    • No

                    Share this review

                    (1 of 1 customers found this review helpful)

                     
                    5.0

                    Sharp, lightweight prime, Versatile.

                    By nbriz

                    from Kansas City, MO

                    About Me Photo Enthusiast

                    Verified Buyer

                    Pros

                    • Fast / accurate auto-focus
                    • Lightweight
                    • Nice Bokeh

                    Cons

                    • Plastic construction

                    Best Uses

                    • Indoors/Low Light
                    • Night Photography
                    • Street photography
                    • Weddings/Events

                    Comments about Pentax smc DA 50mm f/1.8 Lens:

                    Great lightweight, low light, sharp prime. Perfect for portraits, street shots, indoor shots. Definitely recommend it for Pentax users.

                    • Was this a gift?:
                    • No

                    Share this review

                     
                    5.0

                    excellent for the money

                    By reeser

                    from ct

                    About Me Photo Enthusiast

                    Verified Buyer

                    Pros

                    • Consistent Output
                    • Fast / accurate auto-focus
                    • Lightweight
                    • Nice Bokeh

                    Cons

                      Best Uses

                      • Indoors/Low Light
                      • Weddings/Events

                      Comments about Pentax smc DA 50mm f/1.8 Lens:

                      Good performance for the $. Build quality (plastic mount) seems to be adequate.

                      • Was this a gift?:
                      • No

                      Share this review

                       
                      5.0

                      great suprise

                      By burntwood

                      from ohio

                      About Me Photo Enthusiast

                      Pros

                      • Consistent Output
                      • Fast / accurate auto-focus
                      • Lightweight
                      • Nice Bokeh

                      Cons

                      • Needs Better Mount

                      Best Uses

                      • Indoors/Low Light
                      • Landscape/Scenery
                      • Night Photography
                      • Weddings/Events

                      Comments about Pentax smc DA 50mm f/1.8 Lens:

                      i couldn't believe the photo quality of this lenseespecially at the cost point. it would be almost impossible to find one better. but i'm sure the k-5IIs has a little to do with it. very happy.

                      • Was this a gift?:
                      • No

                      Share this review

                      (1 of 1 customers found this review helpful)

                       
                      5.0

                      High IQ and great value

                      By wojtek

                      from Portland, OR

                      About Me Photo Enthusiast

                      Verified Buyer

                      Pros

                      • Consistent Output
                      • Fast / accurate auto-focus
                      • Lightweight
                      • Nice Bokeh

                      Cons

                      • Weak Casing

                      Best Uses

                      • Indoors/Low Light
                      • Landscape/Scenery
                      • Night Photography

                      Comments about Pentax smc DA 50mm f/1.8 Lens:

                      Really nice, fast prime, with high IQ and great value, especially when bought in bundled (I got mine with K5IIs). Soft wide open, but really sharp across the frame at f/5.6, focus is noisy but that's about only con i can find.

                      • Was this a gift?:
                      • No

                      Share this review

                      (1 of 1 customers found this review helpful)

                       
                      5.0

                      This is a Great Lens

                      By Wayne the shutter bug

                      from Smithfield, RI

                      About Me Photo Enthusiast

                      Verified Buyer

                      Pros

                      • Consistent Output
                      • Durable
                      • Easily Interchangeable
                      • Fast / accurate auto-focus
                      • Lightweight
                      • Strong Construction

                      Cons

                        Best Uses

                        • Indoors/Low Light
                        • Landscape/Scenery

                        Comments about Pentax smc DA 50mm f/1.8 Lens:

                        I have used this lens indoors and outdoors with and without flash and with varying depths of fields. The lens handles it all.

                        • Was this a gift?:
                        • No

                        Share this review

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