
A slow shutter speed creates streaks of motion blur – but a new filter aims to help photographers (and videographers) get shots with a mixture of sharpness and blur. The PolarPro CineFlow Motion filter, announced on January 13, adds motion-like blur while still keeping part of the image sharp.
The oddly shaped curved glass of the CineFlow creates “motion” blur, while subjects within the non-streak axis portion of the filter will remain sharp. That allows photographers to create the look of motion blur on a moving subject while still keeping some of the shot sharp with a fast shutter speed.