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Kenko MC Protector 40.5mm Review

The Kenko MC Protector 40.5mm is a lightweight camera lens protection filter for lenses with a matching 40.5 mm thread. Its strongest case is simple everyday protection with multi-coating and minimal added weight. It is not water resistant, and the listed instructions are Japanese only.
Expert reviewed
78
Overall score
Data-driven scoring Expert reviewed Updated analysis

Why we ranked it highly

This Kenko camera filter, model 142202, is a 40.5 mm lens protector intended for compatible threaded lenses. It has an aluminium enclosure, weighs 6 g, and is specified with multi-coating. The product’s role is focused rather than broad: it is an accessory for users who want a protective filter fitted to a suitable lens without materially increasing kit weight. Its overall score of 78 reflects solid results for basic performance, usability, reliability, compatibility, and customer satisfaction. Portability is a particular strength, with a score of 94. Buyers should check lens thread size before purchase and should not assume weather protection, as the specifications state that it is not water resistant. Documentation is also a consideration because the supplied instructions are Japanese only.
90-day review Expert reviewed User feedback Data scoring

Key specs

Features & Specs

Thread Size
40.5 Millimeters
Coating Description
Multi Coating
Special Effect
Enhancing
Water Resistance Level
Not Water Resistant

Additional details

Enclosure Material
アルミニウム
Water Resistance Level
Not Water Resistant

Measurements

Item Dimensions L x W
1.59"L x 1.59"W
Photo Filter Size
40.5 Millimeters
Item Weight
6 Grams

Item details

Brand
Kenko
Manufacturer Part Number
142202
Number of Pieces
1
Model Number
142202
Manufacturer
Kenko
Item Weight
6 Grams

Scores breakdown

80 /100

Performance

72 /100

Features

82 /100

Usability

78 /100

Design

89 /100

App experience

89 /100

Display quality

89 /100

Audio quality

89 /100

Camera quality

Strengths

  • 40.5 mm thread size is clearly specified for compatible lenses.
  • Multi-coating is listed, adding a functional feature beyond a bare protective ring.
  • Very low 6 g weight makes it a practical fit for compact camera setups.
  • Usability score of 82 and setup score of 84 indicate straightforward everyday handling.
  • Customer satisfaction score of 82 is supported by a 4.2/5 average from 2,492 reviews.
  • Aluminium enclosure material is specified, and one review describes an aluminium construction positively.

Limitations

  • It is explicitly not water resistant, so it should not be treated as environmental sealing for a lens.
  • Instructions are listed as Japanese only, which may complicate use for buyers who need English documentation.
  • Durability score of 72 is more moderate than its usability and portability results.
  • The supplied information does not provide detailed warranty or support terms.
  • Compatibility depends on a lens having a 40.5 mm filter thread; it is not a universal camera accessory.
  • At 25.49, value depends on whether simple lens protection and multi-coating are priorities for the buyer.

Ideal user profiles

  • Camera owners whose lens has a 40.5 mm front filter thread.
  • Buyers seeking a lightweight protective filter for routine use and storage.
  • Photographers who prefer a multi-coated filter rather than an uncoated basic protector.
  • Users comfortable with Japanese-only supplied instructions or who do not require extensive documentation.

Use cases

  • Adding a protective filter to a compatible 40.5 mm camera lens.
  • Keeping a lightweight filter fitted during everyday camera carrying and handling.
  • Completing a compact camera or small-lens kit without adding much weight.
  • Replacing a protector on an existing 40.5 mm threaded lens.
  • Using a multi-coated protective filter where water resistance is not required.

Fit and positioning

Who this works for

Category positioning

This is a focused, lightweight protective filter rather than a specialist effect or weatherproof accessory. The specified multi-coating gives it a more considered feature set than a bare basic protector, while the 6 g weight supports use on compact lenses and travel kits. With an overall score of 78 and value score of 78, it sits as a practical mid-level option for compatible 40.5 mm lenses. The absence of water resistance and detailed support information limits its appeal for demanding outdoor use.

Best for

The Kenko MC Protector is best for photographers who have confirmed a 40.5 mm lens thread and want a low-weight protective filter for routine use. Its 82 usability score, 84 setup score, and 94 portability score support buyers who value a simple accessory that is easy to incorporate into a small camera kit. It also suits those who specifically want the listed multi-coating.

Not best for

Buyers needing protection in wet conditions should look elsewhere, because this filter is explicitly not water resistant. It is also a poor direct fit for lenses with any thread size other than 40.5 mm. Users who rely on English documentation may find the Japanese-only instructions inconvenient, while long-term buyers may want clearer warranty and support information than is provided here.

Performance analysis

How it performs in practice

Each scoring dimension is separated into a compact card so the strengths and tradeoffs are easier to compare without reading one long block.

Performance analysis

For its main task of basic lens protection, the filter earns a performance score of 80. The supplied specifications support a straightforward protective role, with a 40.5 mm thread and multi-coating. This is a solid result for an accessory designed to remain unobtrusive on a compatible lens. However, no optical test data is supplied, so claims about image impact, flare control, or transmission should remain cautious. Its lack of water resistance also sets a clear boundary on protective use.

Feature analysis

The feature score of 72 reflects a concise feature set. The key listed feature is multi-coating, paired with an aluminium enclosure and a standard 40.5 mm filter thread. These are relevant inclusions for a protective filter, but the supplied data does not identify additional sealing, specialist optical effects, or advanced accessory features. It is therefore best viewed as a focused lens-protection purchase rather than a highly configurable filter system.

Usability analysis

An 82 usability score and 84 setup score suggest that this is a simple accessory once lens fit has been confirmed. The main practical step is matching the filter to a 40.5 mm lens thread. At 6 g, it should not add meaningful handling burden to a compatible setup. The principal usability caveat is documentation: the listing identifies Japanese-only instructions, which may be less convenient for some customers.

Design

This is a compact circular filter designed around a 40.5 mm thread, with dimensions listed at approximately 1.59 by 1.59 inches. Its 78 design score aligns with an unobtrusive, practical format rather than a feature-heavy design. The 6 g weight is especially useful where lens balance and compact packing matter. No detailed information is provided on grip texture, ring depth, or clearance with lens caps and hoods.

How it compares

Within the protective-filter category, this Kenko model emphasizes low weight, simple fitment, and a listed multi-coating rather than specialist functionality. Its 6 g weight and 94 portability score are advantages for compact systems, while its 82 usability and compatibility scores indicate a convenient option when the lens uses a 40.5 mm thread. In comparison with more demanding lens-protection needs, the absence of water resistance and only moderate durability score are important trade-offs. Its value is balanced rather than exceptional, particularly because detailed warranty information is not supplied.

Ranking summary

The Kenko MC Protector 40.5mm achieves an overall score of 78 because it performs well as a simple, lightweight lens-protection accessory without claiming an unusually broad feature set. Its strongest assessed areas are portability at 94, setup at 84, usability at 82, compatibility at 82, and customer satisfaction at 82. Performance and reliability are both solid at 80, while value and design sit at 78. The ranking is held back by a 72 feature score and 72 durability score, plus the stated lack of water resistance, Japanese-only instructions, and limited warranty detail.

Buying advice

Consider this filter if your lens is clearly marked 40.5 mm and you want a lightweight, multi-coated protector for ordinary use. Its practical scores and 4.2/5 average rating indicate a generally well-received accessory, especially for compact kits. Before buying, verify the lens thread size rather than relying on camera model alone, and check that your existing cap or hood arrangement will still work if that matters. Avoid treating it as weather protection: it is not water resistant. Buyers who need English documentation or confirmed warranty terms should verify those details with the seller first.
78
Overall score

Final verdict

The Kenko MC Protector 40.5mm is a strong everyday option in the narrow category of compatible lens-protection filters. Its main strengths are its very low 6 g weight, stated multi-coating, straightforward 40.5 mm fitment, and solid usability and customer satisfaction scores. It is most compelling for photographers who need uncomplicated protection on a small compatible lens. Its main limitation is that it is not water resistant, with Japanese-only instructions and limited supplied warranty information adding further caution. Overall, it is a sensible, focused purchase rather than a rugged or feature-rich filter.
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Key topics

Kenko MC Protector 40.5mm review, Kenko 142202 review, 40.5mm lens protection filter, Kenko camera filter ranking, multi-coated lens protector, camera lens protection filter comparison, Kenko protector filter value

Frequently asked questions

Is the Kenko MC Protector 40.5mm worth buying?
It is a sensible option for owners of lenses with a 40.5 mm filter thread who want basic protection in a 6 g format. Its overall score is 78, with good usability and customer satisfaction results. The decision is less straightforward for buyers needing water resistance, extensive documentation, or clearly stated warranty coverage.
What lens size fits the Kenko 142202 protector?
The supplied specifications list a 40.5 mm thread size and a 40.5 mm photo filter size. Buyers should confirm the filter-thread marking on their lens before ordering. A different thread size will require a different filter size or an adapter, neither of which is detailed in the available product information.
Does this Kenko filter have a coating?
Yes. The product data lists multi-coating. This is one of the stated functional features and helps distinguish it from a plain protective accessory. The supplied information does not quantify optical effects or provide test data, so performance beyond the listed coating should not be assumed.
Is the Kenko MC Protector 40.5mm water resistant?
No. The specifications explicitly state that the filter is not water resistant. It may serve as a lens-mounted protector, but it should not be considered a substitute for weather sealing or protection against wet conditions. Users shooting in rain or splash-prone environments should take appropriate camera and lens precautions.
Is this Kenko camera filter easy to use?
The product receives an 82 usability score and an 84 setup score, which point to a straightforward accessory for an appropriately threaded lens. Its low 6 g weight also supports convenient daily use. However, the listed instructions are Japanese only, which is a practical limitation for some buyers.
How portable is the Kenko 40.5mm protector?
Portability is one of its strongest assessed areas, with a score of 94. The filter weighs 6 g and measures approximately 1.59 by 1.59 inches, so it adds little bulk to a compatible camera kit. This makes it particularly suitable for small lenses and travel-oriented setups.
What are the main limitations of this Kenko filter?
The key limitations are the lack of water resistance, Japanese-only instructions, and limited warranty information in the supplied data. Its durability score of 72 is also more reserved than its portability and usability scores. It is only compatible directly with 40.5 mm filter threads, so fit must be checked carefully.
How do customers rate the Kenko MC Protector filter?
The listing has a 4.2/5 average rating across 2,492 reviews, alongside a customer satisfaction score of 82. Supplied feedback includes positive comments about aluminium construction, expected quality for the price, and ease of use. Some included reviews reference other size variants, so they should not be read as model-specific performance tests.

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