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Pentax Rear Lens Cap B (Bayonet)

SKU: PXRLCB MFR: 31006
$12.60
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Key Features

  • Safeguard your valuable Pentax lenses with this durable rear lens cap.
  • Provides a snug, reliable fit to protect your lens from scratches and dust.
  • Easy to attach and remove, making lens changes quick and hassle-free.
  • High-quality material ensures long-lasting protection for your Pentax lens.
  • Specifically designed for Pentax bayonet mount lenses, a perfect fit every time.
  • An affordable lens cap solution to keep your Pentax lenses in top condition.
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Special Order?Estimated to Ship: 08/21/2025
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Questions & Answers

Shopper : Is this a genuine spare part?WALTER S : It is identical to the rear lens cap that came on my new Pentax 55-300.IVAN P : Yes.BRIAN Y : Yes, I believe it is. I bought one last year and it looks the same as the OEM part that came with other lenses that I bought brand-new from Pentax.
Shopper : Why Did You Choose This?PETER M : Correct original brand for my Pentax lenses.EMANUEL S : Replacement for previous lens cap.Dennis S : Replace caps that came w/ DA 35mm and DA 50mm.ROBERT S : A spare is always handy.RUSSELL C : The original equipment Pentax rear lens cap fits K-mount lenses better than other brands, IMHO.JOHN B : To have an extra cap for switching lenses.karen A : It's made for my cameraLisa L B : I like the quality of Pentax OEM lens caps.

Reviews about this item

Review Summary

2022-10-30T15:27:06

Rated 4 out of 5

Found It!

A necessity to protect the rear element of my Pentax lens. Hard to find but Adorama had it.

EMANUEL S.

2022-08-10T09:31:52

Rated 5 out of 5

Much better.

Worth the investment for a cap that doesn?t fall off like the pop on caps that come with the ?Plastic fantastic? DA 50mm and DA 35mm lenses. Great lenses but the lens mount cap is suitable for shipping only.

DENNIS S.

2022-04-10T09:09:28

Rated 3 out of 5

Pentx Lens cap

Great Lens cap for my cameria.

brian s.

2022-02-09T07:57:45

Rated 5 out of 5

Lens Cap

As ordered. Good service

JAMES C.

2021-12-22T07:18:05

Rated 5 out of 5

Good match

Perfect match for my 18?55 lens.

Chen S.

2021-11-11T07:10:59

Rated 5 out of 5

It was a lens cap

Not much to say, it was just a lens cap. Wasn't broken, and fit my camera.

ANTHONY P.

2021-02-16T08:47:06

Rated 5 out of 5

75mm Lens Cap - Perfect Fit

Perfect fit for my Pentax 75mm lens that I lost.

KELSEY S.

2020-11-24T07:41:14

Rated 5 out of 5

52 mm Pentax lens cap

This is the best 52 mm Pentax lens cap I have ever seen. It is truly amazing. I measured the lens diameter, which was 52 mm, and then checked with several reddit groups to make sure that 52 mm was what everyone else was getting. Then I ordered it, and it came a few days later, and it was 52 mm!!! I was totally blown away. And it has these spring things that you press and they make it stay on the lens! Wow!! Now that's a feature I wasn't counting on and they threw it in for no extra charge! Oh thank you Adorama!!

DENNIS J.

2020-08-17T16:22:33

Rated 5 out of 5

Can not rate, what you have not received!

I am sure it would be very remarkable if I could receive my order of July 29th, instead of a Canon 79mm lens hood! I still have not received an exchange or response about it from any one whom can read! I guess it may being sent from India!

DOYLE P.

2020-07-26T12:15:26

Rated 5 out of 5

lens covers

excellent product

Melissa A.

2019-07-09T08:40:10

Rated 5 out of 5

#1 Cap

Great cap. Does the job + then some. Awesome squeezing action included.

Isabelle R.

2019-05-13T09:08:25

Rated 5 out of 5

Lens cap review

High quality original Pentax part.

Peter K.

2018-10-30T16:45:31

Rated 5 out of 5

Great Cap!

This is absolutely the finest replacement front lens cap I have ever seen. I couldn't be happier with it.

NORRIS H.

2018-04-09T08:49:29

Rated 5 out of 5

Typical OEM quality

This lens cap is a genuine Pentax cap, therefore, it is of excellent quality.

WILLIAM P.

2017-08-16T21:59:09

Rated 5 out of 5

gr8 replacement lens cap

fits perfectly! exactly like the original, in no danger of falling off.

roo P.

2017-05-03T09:48:55

Rated 5 out of 5

Happy

The lens cap fits perfectly. So glad I could find it.

Carolyn R.

2017-04-25T09:49:29

Rated 4 out of 5

Fits perfectly

I lost my original lens cap for my Pentax K-70 and this was a nice replacement. It fits really nice.

Bobbi L.

2016-09-12T12:38:48

Rated 5 out of 5

Lens Cap - Fits, Works Good

This Lens cap fits perfectly, looks just like the original. I even fooled my friends into thinking I didn't lose the lens cap on my trip down to Argentina afterall. Ha ha. We had a real big laugh over that one.

Craig T.

2016-07-07T10:02:40

Rated 5 out of 5

Perfect replacement

What can I say, it's a lens cap :)

BRAD S.

2016-06-28T10:07:04

Rated 5 out of 5

Pentax Rear Lens Caps fit Pentax lenses better than other brands.

Quick on. Quick off. No hunting for alignment. Satisfyingly positive feedback. Save time when changing lenses. The only other one I would consider is one that is made of soft plastic and slides on without twisting. But still Pentax brand Rear Lens Caps work best. I replace the Rear Lens Caps that come with non-Pentax lenses with Pentax Rear Lens Caps.

JOHN F.

2016-05-30T10:16:31

Rated 5 out of 5

Fits perfect

Fits perfect.

sue h.

2016-04-06T11:19:39

Rated 5 out of 5

It's a lens cap..

But a very nice one at that, fits well, and has the logo we Pentaxians are proud of.

Ken W.

2016-01-28T07:47:54

Rated 5 out of 5

Best lens cap

Center-pinch lens cap works easiest and best for those that use and leave on a rubber hood.

Bear S.

2015-08-05T21:00:00

Rated 5 out of 5

cut the light!

This item is a battery-saving necessity for an older Pentax (e.g. K-1000) which has no on-off switch for the light meter. Of course, it also protects the front lens element from the slings and arrows of outrageous fortune. In the case of this item, it is as good as it gets - a nice example of the virtue of form following function.

STEPHEN S.

2014-04-14T21:00:00

Rated 5 out of 5

Genuine Quality

this was to replace one that fell of a ski chair lift - I was happy to get a genuine one because they are sturdy and work well

DAVID D.

2014-03-05T19:00:00

Rated 5 out of 5

Fit perfectly on lens

I had broken my original lens cap on one of my lenses. This cap fit well and Adorama shipped it very quickly

Jeff

2013-01-16T19:00:00

Rated 3 out of 5

Pentax 49mm Front Lens Cap

Of all the Pentax lens cap types that I have, this is the poorest quality cap I own. But, its a lens cap and it does the job.

ESIII

2012-05-13T21:00:00

Rated 5 out of 5

nice

it's really pentax lense cup. nice!

vicky

Designed For Use With:

  • Pentax Lenses

Need Help?

For any questions about compatibility with this product, call us at 800-223-2500 or you can email us any time.

About Pentax LC

FEATURED REVIEWS

Much better.

By DENNIS S.

Worth the investment for a cap that doesn?t fall off like the pop on caps that come with the ?Plastic fantastic? DA 50mm and DA 35mm lenses. Great lenses but the lens mount cap is suitable for shipping only.

Lens Cap

By JAMES C.

As ordered. Good service

For photographers seeking to safeguard their valuable Pentax lenses, the Rear Lens Cap B (Bayonet) is an essential accessory. This high-quality, original Pentax part is designed to protect the rear element of your lens from dust, scratches, and other potential damage when not in use. It's a hard-to-find item that Adorama proudly carries, offering you peace of mind and extended lens life. The cap's bayonet design ensures a secure fit, providing optimal protection for your lens. Whether you're a professional photographer or a hobbyist, maintaining your equipment with the Pentax Rear Lens Cap B (Bayonet) is a smart investment in your craft.

Pentax LC Features

  • High-quality, original Pentax rear lens cap for optimal lens protection
  • Designed to safeguard the rear element of Pentax lenses from dust and scratches
  • Secure bayonet design for a snug fit on your lens
  • Essential photography accessory for professional and hobbyist photographers
  • Contributes to extended lens life by preventing potential damage

Key Features

  • Safeguard your valuable Pentax lenses with this durable rear lens cap.
  • Provides a snug, reliable fit to protect your lens from scratches and dust.
  • Easy to attach and remove, making lens changes quick and hassle-free.
  • High-quality material ensures long-lasting protection for your Pentax lens.
  • Specifically designed for Pentax bayonet mount lenses, a perfect fit every time.
  • An affordable lens cap solution to keep your Pentax lenses in top condition.