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

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

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

B&H # BWLC51 MFR # 65-069699
B+W #300 51mm Push-On Lens Cap

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  • 1Description

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.

Table of Contents
  • 1Description
Type Front
Size 51 mm
Attachment Method Slip-On
Material Not Specified by Manufacturer
Packaging Infoeusstzqc
Package Weight 0.04 lb
Box Dimensions (LxWxH) 4.3 x 3.5 x 0.3"
#300 51mm Push-On Lens Cap is rated 4.6 out of 5 by 10.
Rated 5 out of 5 by from You need this 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.
Date published: 2011-02-14
Rated 4 out of 5 by from w/ tape it fits Pentax DA 21 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.
Date published: 2012-08-10
Rated 5 out of 5 by from Great 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!
Date published: 2012-04-19
Rated 4 out of 5 by from Nice, simple 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!
Date published: 2011-07-04
Rated 5 out of 5 by from Perfect I have a Zhumell Monocular with a 48mm lens. It did not come with a lens cap. I don't like using it without one when I put it away. I thought I would try this and am so happy I did. It fits perfectly. SO happy I found It here.
Date published: 2015-10-22
Rated 4 out of 5 by from It's a 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.
Date published: 2011-02-14
Rated 5 out of 5 by from ... 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.
Date published: 2011-08-16
Rated 4 out of 5 by from Nice replacement cap The product arrived promptly. The cap was purchased as a replacement lens cap for my Fuji FinePix s1000. It fits snugly, and seems to do the job.
Date published: 2016-12-26
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