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B+W #300 51mm Push-On Lens Cap

B&H # BWLC51 Mfr # 65-069699
In Stock
Free Expedited Shipping on Orders over $49
You Pay: $5.00

The B+W Push-On Lens Cap #300 model is their 'standard' unit, and has a slightly convex front surface to prevent the inside of the cap from touching the glass of your lens when it is tucked away in a bag.  The sides are their 'standard' depth, to fit on normal lens barrels or standard-style filters, and this particular unit has a 51mm inner diameter.

B+W also makes a 'shallow' sides model, the #305 model, to fit on slim filters, and a more common snap-on cap.

It isn't an exact science due to all the variables involved, but generally a push-on cap that is 2-3mm larger than the lens' filter size fits just right.

REVIEW SNAPSHOT®

by PowerReviews
B+W#300 51mm Push-On Lens Cap
 
4.6

(based on 7 reviews)

Ratings Distribution

  • 5 Stars

     

    (4)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

    Cons

      Best Uses

          • Was this a gift?:
          • No (5)

        Reviewed by 7 customers

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        Displaying reviews 1-7

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        4.0

        w/ tape it fits Pentax DA 21

        By Pileofprints.

        from Portland, OR

        About Me Photo Enthusiast

        Pros

        • Durable

        Cons

        • Needs tape

        Best Uses

          Comments about B+W #300 51mm Push-On Lens Cap:

          For Pentax DA 21 limited users only:

          If you don't want to lose that loosely fitting metal cap or you have already lost it this cap is just slightly too big for a snug fit. However, after wrapping a layer of black electrician's tape around the lip of the lid it fits perfectly -- much better that the original lid did at a fraction of the cost that of an actual Pentax replacement cap. And it looks great, too.

          • Was this a gift?:
          • No

          Share this review

           
          5.0

          Great Cap

          By Carleigh

          from Richmond, VA

          About Me Photography Student

          Verified Buyer

          Pros

          • Durable
          • Lightweight
          • Strong Construction

          Cons

            Best Uses

              Comments about B+W #300 51mm Push-On Lens Cap:

              This cap is perfectly simple. I use it on my Pentax k1000 50 mm lens and it feels a tad loose because I'm used to very snug caps but it stays on well so no complaints. The curved surface works well as a protective feature. Great price, too!

              • Was this a gift?:
              • No

              Share this review

               
              5.0

              Simple and effective. Excellent value.

              By cj

              from Edmonton, AB, Canada

              About Me Photo Enthusiast

              Verified Buyer

              Pros

                Cons

                  Best Uses

                    Comments about B+W #300 51mm Push-On Lens Cap:

                    Fits Minolta 49mm lenses and filters perfectly. Stays on when you want it to, yet pops off no problem.

                    • Was this a gift?:
                    • No

                    Share this review

                     
                    5.0

                    [...]

                    By DC

                    from Richmond, VA

                    About Me Casual Photographer

                    Verified Buyer

                    Pros

                    • Strong Construction

                    Cons

                    • Na

                    Best Uses

                    • Any 51mm lens

                    Comments about B+W #300 51mm Push-On Lens Cap:

                    I purchased a 37mm Push-On lens cap that was specified for my FujiFilm digital camera. The cap was too small. [...]The 51mm Push-On lens cap fits perfectly. I will definitely shop B&H in the future.

                    • Was this a gift?:
                    • No

                    Share this review

                     
                    4.0

                    Nice, simple lens cap

                    By Noah Addis

                    from Philadelphia, PA

                    About Me Professional

                    Verified Buyer

                    Pros

                    • Easy To Use
                    • Lightweight

                    Cons

                    • Not Durable

                    Best Uses

                      Comments about B+W #300 51mm Push-On Lens Cap:

                      I bought this as a replacement for the cap on my Rodenstock 150 Apo Sironar S lens. It fits perfectly and is about as good as any other slip-on cap. Which is to say, it will wear out in a few years, but it will probably get lost first!

                      • Was this a gift?:
                      • No

                      Share this review

                       
                      5.0

                      You need this cap.

                      By cornelius

                      from Los Angeles, CA

                      Verified Buyer

                      Pros

                      • Comes off easily
                      • Perfect sizing
                      • Reasonably Priced
                      • Stays on the lens

                      Cons

                      • None found yet

                      Best Uses

                        Comments about B+W #300 51mm Push-On Lens Cap:

                        I wouldn't normally get excited about something as trivial as a lens cap, but this cap does exactly the things you want and not what you don't.

                        - it stays on when you want it to. It has just the right amount of grip to stay put.

                        - it comes off when you want it to. No fiddly buttons to push or things to squeeze. Just pull it off.

                        - it doesn't mess up your lens. This lens cap has a subtle arch so that it doesn't touch the lens, even when pushed. The arch seems to give it a little more strength too.

                        - it fits in your lens case. I shoot Pentax film cameras so I have beautful leather hard cases for my lenses. The lens caps with the squeezy buttons on the sides are too wide and the center pinch lens caps are too tall for the lenses to fit. These caps are perfect in both dimensions.

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                        4.0

                        It's a cap

                        By Cameron

                        from New York, NY

                        Verified Buyer

                        Comments about B+W #300 51mm Push-On Lens Cap:

                        Got it for my Canonet QL17. It's just a little too big as-is; a few layers of masking tape on the inside of the cap give it a snug fit. Beyond that, it's a black plastic cap, and works exactly as you'd expect it to.

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