REVIEW: K&F Concept 77mm 5-in-1 Magnetic Lens Filter Kit

As a photographer, I remember countless times struggling to capture the perfect light or mood, facing blown-out skies or unwanted reflections. These situations, especially when shooting landscapes or during dynamic lighting conditions, were incredibly frustrating. Not being able to properly manage the light or remove glare meant losing crucial detail or missing the intended artistic vision, significantly impacting the final image quality. Finding an efficient way to overcome these hurdles was essential for improving my craft.

K&F Concept 77mm 5-in-1 Magnetic Lens Filter Kit, Includes CPL+ ND8+ ND64+ Lens Cap+ Adapter Ring,...
  • 【A Magnetic Filter Set for Landscape Photography】The combination of 77mm ND filters and 77mm polarising filter gives photographers control exposure, eliminate reflections, and enhance color and...
  • 【1 Second Swap & Install】This magnetic lens filter kit could finish installed in less than one second compared with conventional thread filters. Avoided frozen hands in cold weather and never...
  • 【Lossless lmage Quality】Designed by double polishing technology, it helps you shoot a clear and natural color image even under a 500mm telephoto lens.

Key Considerations Before Investing in Camera Filters

Camera filters, specifically neutral density (ND) and circular polarizer (CPL) filters, are vital tools for photographers looking to gain control over light and enhance their images in challenging conditions. They help solve common problems like overly bright scenes that prevent the use of slower shutter speeds or wider apertures, and unwanted reflections that obscure detail or reduce colour saturation. The ideal candidate for lens filters is anyone serious about landscape, nature, or outdoor photography – from dedicated hobbyists to professionals – who wants to push their creative boundaries and achieve specific effects in-camera rather than relying solely on post-processing. Someone who only shoots indoors or primarily uses their camera for casual snapshots might not find a full filter kit necessary and could perhaps opt for a simple protective UV filter instead. Before buying a lens filter kit, consider the thread size of your lenses (do they match the filter size, or will you need adapter rings?), the types of filters you need (ND, CPL, graduated ND), the optical quality of the glass (to avoid sharpness loss or colour cast), the ease of use (especially when swapping filters in the field), and the overall system (traditional screw-in vs. newer magnetic systems). Durability and the quality of coatings are also important factors for longevity and performance in various weather conditions.

Bestseller No. 1
NEEWER 52mm Lens Filter Kit: UV, CPL, FLD, ND2, ND4, ND8, Lens Hood and Lens Cap Compatible with...
  • 【Complete Camera Lens Filter Kit】This lens filter set includes all the filter accessories you need for filming outdoors: ND2 ND4 ND8 neutral density filter, CPL, UV and FLD filter, collapsible...
Bestseller No. 2
NEEWER 58mm ND Filter Kit and Lens Accessories, ND2 ND4 ND8 UV FLD CPL(Circular Polarizing) Filter...
  • 【58mm Lens Filter Accessories】This NEEWER lens filter accessory kit offers 9 pieces for your choice: UV/CPL/FLD filter, ND2/ND4/ND8 filter, tulip lens hood, collapsible rubber lens hood, snap on...
Bestseller No. 3
NEEWER 58mm Lens and Filter Set: Wide Angle/2.2X Telephoto Additional Lens for 18mm-85mm APS-C Lens,...
  • 【58mm Filter Accessories】This lens kit is an essential addition to your photography toolbox with a 0.43x wide angle lens, a 2.2x telephoto lens, UV/CPL/FLD filters, a set of neutral...

Introducing the K&F Concept 77mm 5-in-1 Magnetic Lens Filter Kit

The K&F Concept 77mm 5-in-1 Magnetic Lens Filter Kit is designed to dramatically simplify the filter-changing process while providing essential tools for landscape photography. This kit promises quick, effortless filter swaps without the fuss of traditional threading, enabling photographers to react faster to changing light or creative impulses. When you purchase this kit, you receive a 77mm magnetic adapter ring, a CPL filter, an ND8 filter, an ND64 filter, a magnetic lens cap, and a waterproof pouch to keep everything organized and protected. Compared to traditional screw-in filters, the key differentiator here is the magnetic system, which offers unparalleled speed and convenience in swapping filters. While K&F Concept has offered traditional threaded filters for years, this Nano-X Series magnetic system represents a significant step forward in user-friendliness. This specific filter kit is perfect for photographers with 77mm lenses (or those willing to use step-up/step-down rings) who prioritize speed and convenience in the field and require the flexibility of both polarizing and neutral density filters. It might not be the best choice for someone who rarely uses filters or primarily needs filters outside the landscape photography realm.

Here’s a quick look at the pros and cons based on my experience and the product details:

Pros:
* Extremely fast and easy magnetic swapping system.
* Includes essential CPL, ND8, and ND64 filters for versatile landscape shooting.
* Good optical quality with multi-layer coatings for clarity and durability.
* Coatings provide resistance to water, oil, and scratches.
* Magnetic lens cap is very convenient.
* Filters can be stacked (though with potential vignetting depending on lens/stack).

Cons:
* The included pouch can feel a bit bulky depending on your camera bag setup.
* Filters can sometimes be difficult to remove when a lens hood is attached.
* May exhibit a slight colour cast, though this can often be corrected in post-processing.
* The filters are slightly larger than the lens barrel, which can interfere with some lens hoods.

Examining the Product’s Capabilities

Having used this K&F Concept magnetic filter kit for a good while now, I can confidently speak to how its features translate into real-world benefits for photography. The core of this system’s appeal lies in its innovative design, significantly changing the workflow compared to traditional filters.

The Magnetic Quick-Swap System

This is, without a doubt, the star of the show. The kit includes an adapter ring that screws onto your lens thread (in this case, 77mm). Once that ring is on, the individual filters, and even the lens cap, attach magnetically. K&F Concept claims a “1 Second Swap & Install,” and while it might take *fractionally* longer than a literal second, the speed and ease compared to screwing and unscrewing filters are phenomenal. You simply align the magnetic filter with the adapter ring or another filter on the lens, and it snaps securely into place. Removing it is just a firm pull. This is particularly useful when the light is changing rapidly, like during sunrise or sunset, or when shooting in challenging conditions like cold weather where fumbling with small threads can be painful and slow. I’ve definitely missed fewer fleeting moments thanks to the speed of this system. However, as noted in the cons, getting a grip on the edge of the filter to pull it off can be tricky if your lens hood is on, as the filter’s slightly larger diameter is flush or slightly wider than the lens barrel itself. This sometimes necessitates removing the hood first, which slightly diminishes the “quick swap” benefit in certain situations.

Included Filters: CPL, ND8, and ND64

The inclusion of three essential filters – a CPL, an ND8, and an ND64 – makes this a versatile kit right out of the box for landscape photographers.

The Circular Polarizer (CPL) filter is invaluable for managing reflections and enhancing colours. By rotating the CPL while looking through the viewfinder, you can control the level of polarization, reducing glare from water, glass, or foliage. This is fantastic for making skies a deeper, richer blue, or for seeing through the surface of water to capture details below. I’ve found the polarization effect from the K&F Concept CPL in this kit to be effective, noticeably cutting through glare and boosting contrast and saturation without making the image look unnatural, provided you rotate it to the desired effect.

The ND8 and ND64 filters are neutral density filters, meaning they reduce the amount of light entering the lens without affecting colour. The ND8 reduces light by 3 stops (1/8th the light), while the ND64 reduces light by 6 stops (1/64th the light). These are crucial for using slower shutter speeds in bright conditions to capture motion blur (like smoothing water or streaking clouds) or for using wider apertures in daylight to achieve a shallower depth of field. Having both a moderate (ND8) and a stronger (ND64) ND filter provides good flexibility. The ND8 is great for slightly longer exposures on overcast days or for adding a subtle blur to moving water. The ND64 is more suitable for brighter conditions or achieving more significant motion blur. Being able to quickly snap on the required ND filter is a huge plus compared to screw-in versions. You can also stack these ND filters (ND8 + ND64 = ND512, or 9 stops), further increasing exposure control options, although stacking multiple filters can potentially introduce vignetting on wide-angle lenses.

Excellent Optical Quality and Coatings

K&F Concept emphasizes the optical quality of these filters, using HD optical glass with double polishing technology. This is important because a filter sits directly in front of your lens elements and can degrade image quality if not made to high standards. The double polishing helps ensure the glass surfaces are extremely smooth and flat, reducing distortion and maintaining sharpness, even when using telephoto lenses. In practice, I haven’t noticed any significant loss of sharpness or detail when using these magnetic filters compared to shooting without them.

Furthermore, the 28 layers of nanometer coatings are key to both image quality and filter durability. These coatings significantly reduce reflections on the filter surface, minimizing flare and ghosting, which are common issues with filters, especially when shooting into the light. Beyond the optical benefits, these coatings make the filters anti-scratch, water repellent, oil, and dust resistant. This is incredibly practical for outdoor photography. Raindrops bead up and roll off, fingerprints wipe clean easily, and dust doesn’t cling stubbornly. This makes maintaining clean filters in the field much simpler, ensuring clearer shots.

Convenience and Portability

The kit includes a functional waterproof pouch designed to hold all four magnetic pieces (adapter ring, CPL, ND8, ND64/cap). The pouch has separate compartments, offering protection for the filters and keeping them organized. It has a zipper and a loop for attaching to a belt or camera bag strap. While the pouch does a good job protecting the filters, some might find its size a bit large, potentially taking up more space in a camera bag than desired, especially if you have limited room. The magnetic lens cap is a nice touch; it snaps onto the adapter ring or any filter magnetically attached to the lens, providing quick protection without needing to remove the filter setup. This is much more convenient than fumbling with traditional lens caps over filters.

Overall, the blend of essential filter types, high optical quality, effective coatings, and the revolutionary magnetic system makes using this K&F Concept kit a genuinely improved experience for photographers who frequently use filters. While the slight issue with lens hoods is a minor inconvenience, the sheer speed and ease of changing filters on the fly far outweigh this drawback for me.

What Other Users Are Saying

Looking around online, many photographers who have tried this magnetic filter kit are largely positive about the system. Users frequently praise the convenience and speed of the magnetic attachment, calling it a significant upgrade from traditional screw-in filters. The optical quality is often mentioned favourably, with particular satisfaction expressed regarding the effectiveness of the CPL filter in managing reflections. While the overall sentiment is positive, a few users have noted minor downsides, such as the size of the included carrying pouch and occasional difficulty removing the magnetic cover or filters when a lens hood is in place.

Final Thoughts

If you’ve ever missed a shot because you were fumbling with screwing on the right filter, or if you’re tired of fingerprints and water spots ruining your carefully composed images, you understand the need for efficient tools. Managing light and reflections is crucial for capturing compelling photographs, and failing to do so can result in flat images, blown-out highlights, or distracting glare. The K&F Concept 77mm 5-in-1 Magnetic Lens Filter Kit offers an excellent solution. Its stand-out magnetic system makes filter changes incredibly fast and easy, allowing you to adapt quickly to changing conditions. The kit provides essential filters (CPL, ND8, ND64) with good optical clarity and durable coatings, making them a reliable addition to your gear bag. For a more seamless and effective filter experience, Click here to check the product out.

Last update on 2025-07-14 / Affiliate links / Images from Amazon Product Advertising API