A recent patent from Olympus shows off an interesting technology that could remove the need for screw-on polarizing filters entirely. Patent Publication No. 2015–41793 (translated), filed in August of 2013, details a sensor with two separate layers: one that measures light and color as a traditional sensor does and a second electronic layer, on top, which captures polarization information. Overhead view of the dual-layer sensor This information could presumably be used to replicate the effects of a...
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