K&F Concept 6.1 in Magnetic Lens Filter Mount Adapter with 67mm

In this review the K&F Concept 6.1 in magnetic lens filter mount adapter is assessed for smartphone photographers who need fast exposure control in bright light. The single biggest reason to buy is the built-in 67mm variable ND2-32 filter, which gives precise control over exposure and motion blur without attaching bulky rigs. The adapter is designed to fit iPhone 12 through 16 series (including Pro models) and promises a secure magnetic system that makes swapping filters and accessories quick while keeping a low profile for run-and-gun shooting.

Key Features

• Universal Compatibility: Designed to fit iPhone models from 12 to 16 series, including Pro versions, so most recent iPhones can use it without modification.
• Variable ND Filter: The 67mm variable neutral density filter covers ND2 to ND32, allowing gradual reduction in light for filming or slower shutter speeds in daylight.
• Magnetic Design: Strong magnets enable quick mounting and removal of the filter and allow magnetic accessories to be attached to both sides for extra versatility.
• Seamless Edge Seal: The adapter uses an edge seal and L-shaped anti-slip pads to prevent light leaks and keep the phone stable during use.
• Soft-Touch Finish: Liquid silicone coating on both sides resists fingerprints and gives a comfortable, secure grip while handling the adapter.
• Accessory Friendly: The magnetic system accepts ring lights and other magnetic mounts, expanding how the adapter can be used on location.

Who It's For

The adapter is aimed at mobile photographers and videographers who shoot outdoors and need quick, reliable exposure control without carrying DSLR filters. It is particularly useful for content creators who want smoother motion or shallower depth effects in daylight using only their phone.

Photographers who need guaranteed fit on every phone should be cautious: compatibility with every future phone model is not certain, and a few users reported fit or magnet strength issues with newer or nonstandard cases. Studio shooters who require precision glass and filter mounts designed for interchangeable-lens cameras should look to full-size filter systems instead.

Pros & Cons

Pros

• Built-in 67mm variable ND2-32 gives flexible exposure control for photo and video.
• Magnetic attachment makes mounting and swapping fast and convenient on compatible phones.
• Soft-touch liquid silicone finish reduces fingerprints and improves handling comfort.
• Seamless edge seal and anti-slip pads help reduce light leaks and stabilize the phone while shooting.

Cons

• Magnet strength and fit received mixed feedback from users, so fit may vary by phone model and case thickness.
• Not a replacement for full-size camera filters when absolute optical precision is required.

Specifications

Product	K&F Concept magnetic lens filter mount adapter
Compatible phones	iPhone 12 to 16 series, including Pro models
Adapter size	6.1 in magnetic lens filter mount adapter
Filter thread	67mm variable ND
ND range	ND2 to ND32
Finish	Liquid silicone soft-touch coating
Anti-slip	L-shaped anti-slip pads and seamless edge seal

Our Verdict

The K&F Concept 6.1 in magnetic mount adapter is a practical, value-minded choice for mobile creators who need on-the-go exposure control and accessory flexibility. Its 67mm variable ND and magnetic system streamline outdoor shooting with recent iPhones, though buyers should confirm fit for their exact model. Overall it offers useful functionality for most smartphone shooters without adding bulk.

Frequently Asked Questions

Will this fit my iPhone model?
The adapter is made for iPhone 12 through 16 series including Pro models; check fit with any protective case as thickness can affect attachment.

What light reduction does the filter provide?
The included 67mm variable ND filter adjusts from ND2 to ND32 for gradual light reduction and smoother motion control in bright conditions.

Can I attach other accessories?
Yes, the magnetic design allows attaching magnetic mounts, ring lights, and other compatible accessories to either side.