I use Kase magnetic filters. But regardless of the manufacturer, I would never work without magnetic filters again. The gain in comfort is enormous, especially outdoors and in changing conditions.
I also use a fairly large pouch to store my filters. This allows me to grab the filters easily even when wearing thick gloves. In winter, I would otherwise have to take my gloves off far too often, which is inconvenient and simply annoying.
One important tip I would like to share: Many, in fact very many photographers always use polarizing filters at maximum strength. This often results in slightly kitschy colors, but more importantly, reflections are completely removed. This affects leaves, water surfaces, and reflections in general. The image quickly looks flat and less natural, often even worse than without a filter.
I therefore recommend using polarizing filters at only about 50 to 60 percent of their maximum effect. That is when truly good polarizer images are created. A polarizing filter does not have to be used at maximum strength all the time. Here too, less is more.
I also like to use ND filters a lot. If I don’t have one with me, I simulate the effect digitally by using a series of images that are then combined. This works surprisingly well. It does not always look exactly the same as using a real ND filter, but the result is by no means bad. Many people are not aware that ND filters can also be simulated digitally using multiple exposures.
What I also use are mist filters. While these can theoretically be simulated in post-processing, in my experience this works only very poorly. A trained eye can immediately tell whether a real mist filter was used or if the effect was added later in post-processing.
I use magnets nowadays, but since I already have a bunch of polarizers in different sizes, I take just one of the right size if I use a minimal kit. The magnetic kit is more for the ND filters, which I only have in that kit.
You can adapt any screw-in filter, regardless of the manufacturer, to Megeten filters using a Kase adapter. I would find it far too fiddly to use screws. What's the problem with magnetism? Many people use it without any problems.
