This filter is not one that I used to regularly carry in my bag, as I assumed it functioned primarily as a mix between an ND filter and a soft filter. But, given the chance to use it for a few days, I realized I was wrong! The 1/4 black diffusion filter (there's also a stronger 1/2 filter) is mostly used for its softening effect on faces, where it can reduce the appearance of wrinkles and blemishes. In that role, it works, although perhaps a bit too much for some photos. I shoot outside landscapes and architectural shots more than portraits, where the filter reduces glare and reflections. It's also good for throwing backgrounds out of focus more than the camera itself manages. The effect, at first glance, are subtle but they are visible in a side-by-side comparison. Mostly, there's a "glow" effect to shots that is quite appealing. The quality of the filter is high, and I use it now almost as a default on my primary 85mm and 105mm lenses. Nice filter.
10.09.2021