Best Lens Filter for Zeiss Loxia 21mm f/2.8
Owning the Zeiss Loxia 21mm f/2.8 means you’ve invested in some of the finest manual-focus wide-angle glass available for the Sony E-mount system, but leaving that front element exposed is a recipe for heartbreak. The real challenge is finding a filter that doesn’t muddy the legendary Zeiss micro-contrast or introduce vignetting on such a wide…