Wallet-friendly magnetic Filters from K&F Concept

Apr 27, 2021

Paul Monaghan

Creative photographer based in Scotland, Sigma UK Ambassador.

Wallet-friendly magnetic Filters from K&F Concept

Apr 27, 2021

Paul Monaghan

Creative photographer based in Scotland, Sigma UK Ambassador.

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K&F Concept has just released a new magnetic filter kit that you can get for as little as $110.

The Kit comes with a magnetic adapter ring, UV filter, CPL filter, and 10stop ND.  That all fit nicely into the included case that can hold four 82mm filters.

The pouch also has a velcro belt loop on the back to attach to other bags, belts, or even your tripod, as well as a D ring for hanging or attaching onto things.

As I was looking for a nice compact kit to complement my Sigma dp3q and dp0, I opted for the 58mm versions.

Using the kit couldn’t be simpler. You screw the Magnetic Adaptor ring onto your lens and then place the magnetic filters on top. Snap! The filter is now securely in place.

Removing the filter is just as simple as popping it off. I was concerned about the filters falling, but even when I was jumping around with the camera, the filters stayed firmly in place.

One of the nice things about this kit is that you can attach the UV filter to the lens in two ways:  1. Using the magnetic adaptor ring and 2. screwing it onto the lens. This lets you keep the Magnetic adaptor ring on one lens and the UV on a second. Allowing you to switch filters between lenses quickly.

Testing

While I couldn’t go far due to COVID-19 restrictions, I’m lucky to have the Lugie Water two minutes from my home. This image was taken with the CPL and 10Stop ND on my Sigma dp3Q.


And here are some crops without a filter, with the UV, then CPL, and finally the all three.

As you can see, even when attaching all three filters, the sharpness is still fine. The UV filter seems not to affect image quality here, while the CPL and ND add a little bit of color cast.

Here’s a photo of the combo used for the above shot, and as you can see, stacking the filters makes it protrude quite a bit, which could lead to vignetting on some cameras. A way around this would be to buy a larger version and use a step-up ring.

Luckily though it wasn’t an Issue on the Sigma dp3q, I then tested it on my 14mm  dp0, which I was sure would be affected.

Using the magnetic adaptor ring, CPL and 10stop gave no vignetting on the Sigma dp0.  So as you can imagine, I’m a happy man and found a great little kit to use on both cameras.

Conclusion

Starting at $110 for three filters, a magnetic adaptor with a nice pouch to carry them all in.  It’s easy to recommend the K&F Concept Magnetic Filter kit to anyone looking for such a solution.
I personally can’t wait to put these to good use with my dp Quattros, and with lockdown easing in Scotland, I can start to plan some trips.

The K&F Concept Magnetic Filter Kit is available from 49 to 82mm sizes at $110 to $149.

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Paul Monaghan

Paul Monaghan

Creative photographer based in Scotland, Sigma UK Ambassador.

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