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Panasonic LUMIX G 20mm f/1.7 II ASPH. Lens (Black)

You Pay: $427.99
Product Highlights
  • Micro Four Thirds System
  • Fast f/1.7 Maximum Aperture
  • Aperture Range: f/1.7-16
  • 20mm Focal Length (35mm Equiv: 40mm)
  • 2 Aspherical Elements
  • 7 Rounded Diaphragm Blades
  • Multi-Coated Elements
  • Minimum Focusing Distance: 7.87"
  • Durable Metal Mount and Body
  • 46mm Filter Diameter

The black LUMIX G 20mm f/1.7 II ASPH. Lens from Panasonic is an extremely compact, pancake-style prime lens in the Micro Four Thirds system. It is compatible with Panasonic LUMIX G digital cameras. The lens has a 35mm equivalent focal length of 40mm and a fast f/1.7 maximum aperture that offers great low-light performance. The 7-blade rounded aperture produces pleasing bokeh in the out-of-focus regions of images.

Two aspherical elements minimize both distortion and chromatic aberration. The lens supports the Contrast AF system for high precision auto focusing. Multi-coated elements minimize ghosting and flare to further enhance image quality, and minimum focusing distance is 7.87". The 20mm f/1.7 II features a durable metal mount and body, as well as a 46mm filter diameter.

Compact, pancake-style prime lens in the Micro Four Thirds system, designed for Panasonic LUMIX G digital cameras
Features a 35mm equivalent focal length of 40mm and a fast f/1.7 maximum aperture that offers great low-light performance
The 7-blade rounded aperture diaphragm creates pleasing bokeh in out-of-focus areas
Dual aspherical elements reduce distortion and chromatic aberration
Supports the Contrast AF system for highly precise autofocus. Continuous Auto Focus (AFC) does not work for still image capture but is usable when recording video
Multi-coated elements minimize ghosting and flare
Has a minimum focusing distance of 7.87"
Sturdy metal mount and body
Accepts 46mm filters
Performance
Focal Length 20mm
Comparable 35mm Focal Length: 40 mm
Aperture Maximum: f/1.7
Minimum: f/16
Camera Mount Type Micro Four Thirds
Format Compatibility Micro Four Thirds
Angle of View 57°
Minimum Focus Distance 7.87" (20 cm)
Magnification 0.13x
Maximum Reproduction Ratio 1:8
Elements/Groups 7/5
Diaphragm Blades 7
Features
Image Stabilization No
Autofocus Yes
Physical
Filter Thread Front:46 mm
Dimensions (DxL) Approx. 2.48 x 1.00" (63 x 25.5 mm)
Weight 3.07 oz (87 g)
Panasonic LUMIX G 20mm f/1.7 II ASPH. Lens (Black)
  • Front Lens Cap
  • Rear Lens Cap
  • Lens Storage Bag
  • Limited 1-Year Warranty (U.S.A. and Puerto Rico)
  • REVIEW SNAPSHOT®

    by PowerReviews
    PanasonicLUMIX G 20mm f/1.7 II ASPH. Lens (Black)
     
    4.5

    (based on 27 reviews)

    Ratings Distribution

    • 5 Stars

       

      (18)

    • 4 Stars

       

      (5)

    • 3 Stars

       

      (3)

    • 2 Stars

       

      (1)

    • 1 Stars

       

      (0)

    92%

    of respondents would recommend this to a friend.

    Pros

    • Lightweight (22)
    • Fast / accurate auto-focus (13)
    • Nice bokeh (11)
    • Easily interchangeable (10)
    • Consistent output (9)

    Cons

      Best Uses

      • Low light (19)
      • Night photography (12)
      • Landscape/scenery (10)
      • Weddings (8)
      • Video (7)
        • Reviewer Profile:
        • Photo enthusiast (13), Semi-pro photographer (6), Pro photographer (4)
        • Was this a gift?:
        • No (25)

      Most Liked Positive Review

       

      Outstanding Moderate Wide-Angle Lens

      This is a first class lens for MFT users. I already own the fine Olympus 17mm F1.8 lens, and needed a second lens in this range for my wife's E-P5. In a back...Read complete review

      This is a first class lens for MFT users. I already own the fine Olympus 17mm F1.8 lens, and needed a second lens in this range for my wife's E-P5. In a back to back comparison using my E-M1 (tripod and self-timer), the Lumix lens is noticeably sharper throughout the range of f-stops, when viewed at 100% on screen. No "chatter" during focusing was noticed on either body. Perhaps the Lumix is a bit slower at focusing, but not significantly so.

      Pancake size is appreciated by my wife. Slightly tighter field of view on the Lumix should be considered by all, and its lack of a focusing scale may be an issue for some advanced photographers.

      VS

      Most Liked Negative Review

       

      Slow focus

      This is a great lens for indoor photography. Nice small lens, good field of view, excellent construction and image quality is sharp. Unfortunately this lens focuses very slow. The Olympus Zuiko lenses...Read complete review

      This is a great lens for indoor photography. Nice small lens, good field of view, excellent construction and image quality is sharp. Unfortunately this lens focuses very slow. The Olympus Zuiko lenses all have blazing fast and silent focus. Not so with Panasonic. Something about the design, it hunt for focus with every shot. Even if you focus and lock in on the subject. If you refocus again it will bring it out of focus and lock in again. This is not a good lens if there is a lot of action as could occur with many indoor event photography. It is usable, but the 17mm Zuiko is probably a much better lens. I may sell this one to get that.

      Reviewed by 27 customers

      Sort by

      Displaying reviews 1-20

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      (3 of 3 customers found this review helpful)

       
      3.0

      Slow focus

      By summer solstice

      from Pittsburgh, PA

      About Me Photo Enthusiast

      Verified Reviewer

      Pros

      • Durable
      • Easily Interchangeable
      • Lightweight
      • Nice Bokeh
      • Rugged

      Cons

      • Slow Focus

      Best Uses

      • Indoors/Low Light
      • Night Photography

      Comments about LUMIX G 20mm f/1.7 II ASPH. Lens (Black):

      This is a great lens for indoor photography. Nice small lens, good field of view, excellent construction and image quality is sharp. Unfortunately this lens focuses very slow. The Olympus Zuiko lenses all have blazing fast and silent focus. Not so with Panasonic. Something about the design, it hunt for focus with every shot. Even if you focus and lock in on the subject. If you refocus again it will bring it out of focus and lock in again. This is not a good lens if there is a lot of action as could occur with many indoor event photography. It is usable, but the 17mm Zuiko is probably a much better lens. I may sell this one to get that.

      • Was this a gift?:
      • No

      Share this review

       
      5.0

      Quality Purchase

      By Thebestbobthateverbobbed

      from New Jersey

      About Me Semi-pro Photographer

      Verified Buyer

      Pros

      • Consistent Output
      • Durable
      • Easily Interchangeable
      • Lightweight
      • Nice Bokeh

      Cons

        Best Uses

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

        Comments about LUMIX G 20mm f/1.7 II ASPH. Lens (Black):

        I bought this lens as one of my start out lenses for my Panasonic GH4. For the price, I found this lens to be a perfect fast prime lens to start out with until I have the money to buy more expensive lenses. It is unbelievably tiny, very fast, and a solid focal length.

        • Was this a gift?:
        • No

        Share this review

         
        5.0

        BRIGHT and CRISP

        By Ed

        from St. Louis, MO

        About Me Pro Photographer

        Verified Buyer

        Pros

        • Lightweight
        • Nice Bokeh

        Cons

          Best Uses

          • Indoors/Low Light

          Comments about LUMIX G 20mm f/1.7 II ASPH. Lens (Silver):

          Connected to the GX7, this is fantastic street camera, fast and bright. Great in low light. I am new to the 4/3 format and loving the compact size of the pancake lenses.

          • Was this a gift?:
          • No

          Share this review

           
          5.0

          As great as the reviews say it is

          By MistahVega

          from Gainesville, GA

          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
            • Night Photography
            • Video
            • Weddings/Events

            Comments about LUMIX G 20mm f/1.7 II ASPH. Lens (Black):

            As great as the reviews say it is, good price for great MFT lens. Improvement over version 1.

            • Was this a gift?:
            • No

            Share this review

            (3 of 3 customers found this review helpful)

             
            3.0

            Good but a tiny bit soft in the corners

            By Luca

            from Mountain View, CA

            About Me Photo Enthusiast

            Verified Reviewer

            Pros

            • Lightweight
            • Strong Construction

            Cons

            • Corner Sharpness

            Best Uses

            • Indoors/Low Light
            • Night Photography

            Comments about LUMIX G 20mm f/1.7 II ASPH. Lens (Black):

            This lens is light and quite bright. However, it is a tiny bit soft in the corners for my taste. Compared with Four-Third lenses 14-54 and 50mm fixed, this lens is somewhat less sharp in the corners. It is quite sharp in the center, even full open. So it is a great lens for portraiture, but not quite for low-light landscape photography.

            • Was this a gift?:
            • No

            Share this review

             
            4.0

            an excellent fast pancake

            By Mark from NYC

            from New York, NY

            About Me Semi-pro Photographer

            Verified Buyer

            Pros

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

            Cons

              Best Uses

              • Indoors/Low Light
              • Night Photography
              • Video

              Comments about LUMIX G 20mm f/1.7 II ASPH. Lens (Black):

              I use the lens for video with GH4, and I would not mind having the option of image stabilization. Since it is functionally 40mm (2x crop on MFT)it is very useful everyday lens. Very light and small, and you can get very nice shallow depth of field at f 1.7

              • Was this a gift?:
              • No

              Share this review

               
              4.0

              fantastic lens, good value.

              By swede

              from Northern Minnesota

              About Me Photo Enthusiast

              Verified Buyer

              Pros

                Cons

                  Best Uses

                    Comments about LUMIX G 20mm f/1.7 II ASPH. Lens (Black):

                    I bought this lens to use on my omd em-5, specifically for travelling/tourism, replacing my 12-50mm kit lens.
                    This lens is sharp and compresses well. I used mostly primes back with my D-SLRs and am happy to be back at it with this lens/body combo.

                    not 5 stars due to it's slightly slow auto-focus. I found a few situations where it hunted a bit and is not too quick in it's search.

                    • Was this a gift?:
                    • No

                    Share this review

                    (3 of 3 customers found this review helpful)

                     
                    2.0

                    small with decent optics, but AF is slow

                    By Jacob

                    from OK

                    About Me Photo Enthusiast

                    Verified Reviewer

                    Pros

                    • Lightweight

                    Cons

                    • Noisy
                    • Slow Focus

                    Best Uses

                    • Landscape/Scenery

                    Comments about LUMIX G 20mm f/1.7 II ASPH. Lens (Black):

                    Optically, this lens is okay, but not really much different than other m43 prime lens with a similar focal length. However, this lens is very small (not that the others are large).

                    By current standards, the autofocus on this lens is extremely slow, not unlike a macro lens. If you can live with slow AF this lens is okay. This lens is also noisy during operation.

                    For general use where focus speed matters, the Olympus 17mm f1.8 and 25mm f1.8 lenses (I own both) are much better lenses.

                    • Was this a gift?:
                    • No

                    Share this review

                    (0 of 3 customers found this review helpful)

                     
                    5.0

                    Small and fast

                    By DRB

                    from IL

                    About Me Photo Enthusiast

                    Verified Buyer

                    Pros

                    • Fast / accurate auto-focus
                    • Lightweight

                    Cons

                      Best Uses

                      • Indoors/Low Light

                      Comments about LUMIX G 20mm f/1.7 II ASPH. Lens (Black):

                      Nice small and fast lens.

                      • Was this a gift?:
                      • No

                      Share this review

                       
                      5.0

                      Must have lens

                      By Stillwater

                      from Portland, OR

                      About Me Photo Enthusiast

                      Verified Buyer

                      Pros

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

                      Cons

                        Best Uses

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

                        Comments about LUMIX G 20mm f/1.7 II ASPH. Lens (Black):

                        This is a great lens for indoor shooting. Perfect for candid shots of friends and family in or out of doors. Fast enough for action shots and very, very clear. Another great thing is that it is so small and light. Perfect and a must have.

                        • Was this a gift?:
                        • No

                        Share this review

                        (2 of 2 customers found this review helpful)

                         
                        5.0

                        Outstanding Moderate Wide-Angle Lens

                        By Duffer

                        from Michigan

                        About Me Semi-pro Photographer

                        Verified Buyer

                        Pros

                        • Compact Size
                        • Sharp images

                        Cons

                        • No lens hood available

                        Best Uses

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

                        Comments about LUMIX G 20mm f/1.7 II ASPH. Lens (Black):

                        This is a first class lens for MFT users. I already own the fine Olympus 17mm F1.8 lens, and needed a second lens in this range for my wife's E-P5. In a back to back comparison using my E-M1 (tripod and self-timer), the Lumix lens is noticeably sharper throughout the range of f-stops, when viewed at 100% on screen. No "chatter" during focusing was noticed on either body. Perhaps the Lumix is a bit slower at focusing, but not significantly so.

                        Pancake size is appreciated by my wife. Slightly tighter field of view on the Lumix should be considered by all, and its lack of a focusing scale may be an issue for some advanced photographers.

                        • Was this a gift?:
                        • No

                        Share this review

                         
                        5.0

                        Small with great IQ,

                        By Pete

                        from Iowa city

                        Comments about LUMIX G 20mm f/1.7 II ASPH. Lens (Black):

                        Bought for my pana gm1. Perfect match. Very good all around and low light.

                        Share this review

                         
                        5.0

                        Excellent M43 Fast Prime

                        By ExMachina

                        from Falls Church, Va

                        About Me Photo Enthusiast

                        Verified Buyer

                        Pros

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

                        Cons

                          Best Uses

                          • Indoors/Low Light
                          • Night Photography
                          • Video

                          Comments about LUMIX G 20mm f/1.7 II ASPH. Lens (Black):

                          Picked this up at a steep discount when I bought by Lumix GX7 and am really glad I did. The lens seems very sharp with very little distortion. I'm super-please with it, and now understand why so many rave about this lens.

                          • Was this a gift?:
                          • No

                          Share this review

                          (2 of 4 customers found this review helpful)

                           
                          5.0

                          Nice lens for narrow depth of field

                          By Landy

                          from Plano, TX

                          About Me Casual Photographer

                          Verified Buyer

                          Pros

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

                          Cons

                            Best Uses

                            • Indoors/Low Light

                            Comments about LUMIX G 20mm f/1.7 II ASPH. Lens (Black):

                            This is a really nice lens for narrow depth of field which is why I bought it. The f stop goes down to 1.7. Better than the original lens kit I purchased for my Lumix GH2. An added benefit turned out to be that it is very light and small so it is great for whipping out the camera for those quick shots. So, not as cumbersome as the longer 14-140 lens. The downside is of course, it has no zoom. But to get a shallow depth of field for a 4 thirds camera like the Lumix that would have zoom capabilities one would spend $[$]instead of the $[$]that I paid (best price I could find, actually. Thanks B&H!). If you are looking for a zoom lens with a low f stop of .95 for a 4 thirds camera look at this lens at B&H PHOTO: Voigtlander Nokton 25mm f/0.95 Lens for Micro Four Thirds CamerasIt gets AMAZING reviews. .95 f stop is insane! It will be bigger and bulkier than the one I got but it seems like for the price it can't be beat. If I had a grand in the budget I would definitely have gotten the Voigtlander Nokton. I'm very happy with my purchase, though. Shallow depth of field is good for me at this moment for taking pics of my son around the house where I don't want the background in focus. I just have to walk a little closer to the subject because of the lack of zoom. Still, for me it isn't a big deal.It's also great in low light situations!

                            • Was this a gift?:
                            • No

                            Share this review

                            (0 of 2 customers found this review helpful)

                             
                            3.0

                            fatally flawed for dark night photos

                            By ny ny

                            from ny ny

                            Pros

                            • Fast / accurate auto-focus
                            • Lightweight

                            Cons

                            • Poor in Low Light

                            Best Uses

                              Comments about LUMIX G 20mm f/1.7 II ASPH. Lens (Silver):

                              Recently bought a GM1. In many ways the 20mm f1.7 is the perfect lens for it. It keeps the size small and is a very flexible focal length. In most situations, the lens performs really well. However, in very low light, the 20mm f1.7 has a terrible flaw. Black areas of the photo will often show terrible bands/stripes. The issue is thoroughly discussed in many micro 4/3rds forums and can happen with many micro 4/3rds cameras. It doesn't always happen, it may depend on what kind of lighting is around. If you don't shoot in very low light, you may never notice it, but if you do, you'll eventually find many of your dark photos basically ruined by totally unacceptable banding.

                              Share this review

                              (1 of 1 customers found this review helpful)

                               
                              5.0

                              great lens

                              By gulka

                              from LA

                              About Me Pro Photographer

                              Verified Buyer

                              Pros

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

                              Cons

                              • Weak Casing

                              Best Uses

                              • Video

                              Comments about LUMIX G 20mm f/1.7 II ASPH. Lens (Black):

                              This is fantastic lens, and the price from B&H was a steal... I am joking, paid around[$]$...great lens for Panasonic GH3, super sharp, super fast, small....

                              • Was this a gift?:
                              • No

                              Share this review

                               
                              5.0

                              Sharp bright little lens

                              By Joe

                              from Madison WI

                              About Me Photo Enthusiast

                              Verified Buyer

                              Pros

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

                              Cons

                                Best Uses

                                • Indoors/Low Light
                                • Weddings/Events

                                Comments about LUMIX G 20mm f/1.7 II ASPH. Lens (Black):

                                I haven't had this lens for long, but so far it's been working great on my E-P3. The camera/lens combo thing is a tidy little package that has done great in poor to marginal to excellent lighting.

                                • Was this a gift?:
                                • No

                                Share this review

                                (1 of 1 customers found this review helpful)

                                 
                                5.0

                                Essential Lens

                                By Red Cape Studio

                                from Los Angeles

                                About Me Photo Enthusiast

                                Verified Buyer

                                Pros

                                • Consistent Output
                                • Easily Interchangeable
                                • Lightweight
                                • Nice Bokeh

                                Cons

                                  Best Uses

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

                                  Comments about LUMIX G 20mm f/1.7 II ASPH. Lens (Black):

                                  This was the first m43 lens I bought (version 1) to use with my GH2 and recently bought version II to go with my GX7. It is my most used lens and turns out to be an excellent all around lens. It is remarkably small and lightweight, has excellent optical properties and the focal length works for a wide range of subject matter. It is wide and fast enough to shoot indoors and works equally well outdoors where its rendering quality is marvelous. I am consistently surprised and happy with the results even after three years.

                                  • Was this a gift?:
                                  • No

                                  Share this review

                                   
                                  4.0

                                  excellent everyday carry lens.

                                  By Feels Naked Without a Camera.

                                  from Vancouver, British Columbia.

                                  About Me Photography Student

                                  Verified Buyer

                                  Pros

                                  • Lightweight
                                  • Rugged
                                  • Strong Construction

                                  Cons

                                    Best Uses

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

                                    Comments about LUMIX G 20mm f/1.7 II ASPH. Lens (Black):

                                    Just tried it out at a company Christmas party with the GX1. Quite unobtrusive less overstated as than my former DSLR with it's standard prime.

                                    • Was this a gift?:
                                    • No

                                    Share this review

                                    (0 of 1 customers found this review helpful)

                                     
                                    5.0

                                    Good as the older 20mm + made of metal.

                                    By CLEVELANDJOHN

                                    from Cleveland Ohio

                                    About Me Semi-pro Photographer

                                    Pros

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

                                    Cons

                                      Best Uses

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

                                      Comments about LUMIX G 20mm f/1.7 II ASPH. Lens (Silver):

                                      I have had 2 of the order 20mm in the past and they were great. After getting the new GX7 I realized I missed the 20mm so sold the kit lens ( very good lens ) in favor of the smaller silver 20mm. It matches the camera it makes the camera smaller and It will fit the leather case thats on my wish list.

                                      • Was this a gift?:
                                      • No

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