The Kaiser 50mm Push-On Lens Cap is designed to fit any camera, enlarger lens, binocular, tele-, micro-, or spotting scope lens. It is for lenses having a front or rear ring with an outside diameter of 50mm. The cap should fit snuggly but not so tight that it is hard to remove.
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Key Features
- Designed for 50mm Outer Diameter
- Push-On Design
- Protects Front Element of Lens
- Spare or Replacement Item
The Kaiser 50mm Push-On Lens Cap is designed to fit any camera, enlarger lens, binocular, tele-, micro-, or spotting scope lens. It is for lenses having a front or rear ring with an outside diameter of 50mm. The cap should fit snuggly but not so tight that it is hard to remove.
More DetailsIn Stock
Kaiser Push-On Lens Cap Overview
Kaiser Push-On Lens Cap Specs
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Packaging Info
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Kaiser Push-On Lens Cap Reviews
51mm Lens Cap
By George
Rated 5 out of 5
Date: 2026-02-26
I ordered it for a new scope I had gotten, and this size is hard to find. It fits the objective lenses as it should and looks to be of good material. I am very happy with the cap.
Binoculars caps
By John
Rated 5 out of 5
Date: 2025-08-11
Perfect fit and delivered in a timely manner.
See any errors on this page?
Will this push-on cap fit my Minolta MD Rokkor-x ...
Will this push-on cap fit my Minolta MD Rokkor-x 50 mm 1.7?
A 50mm lens does not typically refer to the filter threads and or lens diameter. This lens happens to take a 49mm filter but that is the inner diameter of the lens. Your lens is probably anywhere from 51-54mm. Most people buy 2 or 3 different sizes and return the ones that don't fit.
Date published: 2020-06-25
Will this fit on a Nikon 50mm lens?
Will this fit on a Nikon 50mm lens?
No, 50mm is the focal length and not the outer dimension of the front of the lens. You will need to measure the outer diameter of the front of your lens to determine a push on cap size.
Date published: 2020-09-08
Will this fit a pentagon 50 mm 1.8 mc lens?
Will this fit a pentagon 50 mm 1.8 mc lens?
The front diameter of your lens is 60mm, so the Kaiser 60mm Push-On Lens Cap, BH # KALC60 would be more suitable.
https://bhpho.to/3nzuMlU
Date published: 2021-09-14
Does anyone happen to know whether this Kaiser ...
Does anyone happen to know whether this Kaiser 85mm Push-On Lens Cap will work well as a lens cap for the Tiffen 82mm variable ND filter?
Kaiser makes a 82mm Tiffen 82mm variable ND filter version for use with 82mm filters.
Date published: 2019-06-13
Will this cap fit a Sony RX100M7?
Will this cap fit a Sony RX100M7?
No
Date published: 2020-09-01
question
How well this Kaiser push on cap fits on a B+W CPL Slim MRC filter 77mm. Any other suggestions besides the original B+W (Schneider) push onThank you
I really like these lens covers, as an alternative to push-on caps:OP/TECH USA Hood Hat, SmallB&H # OPHHS35B Mfr # 8001112This will be the correct size for a 77mm.
Date published: 2022-05-01
Can you please verify if this cap will fit on a ...
Can you please verify if this cap will fit on a 80mm hasselblad lenses?
If the focal length is 80mm, it doesn't mean the cap/filter size is 80mm. It depends on which version of 80mm lens it is. Typically a push on lens cap should be about 2-3mm larger than that of the filter size. For example is the lens has a 77mm filter thread, a 80mm push on cap should work. The older Hassy lenses took Bay 60 filters, that would be about 60mm in diameter , so a 63mm push on cap would probably work.
Date published: 2019-09-25
Will it fit OK with a step up ring? I'm planning ...
Will it fit OK with a step up ring? I'm planning to use these with some lenses that have step-up rings to 82mm.
Yes - I use these85mm caps on 82mm step up rings and also on a few lenses with 82mm filter threads.
Date published: 2021-12-02