· 6 min read
Why Circular Polarizers Exist: Polarized Light and Through-the-Lens Metering
How beam-splitter meters and autofocus sensors misread linearly polarized light, and what a quarter-wave plate changes optically and for exposure.
· 6 min read
How beam-splitter meters and autofocus sensors misread linearly polarized light, and what a quarter-wave plate changes optically and for exposure.
· 7 min read
How a polarizer darkens blue sky and suppresses reflections off water and glass by physics rather than colour, and how it differs from a contrast filter.