PhotoRepublik 43mm ND 8 Filter Filter Size_40.5mm Sigma’s own proprietary OS (Optical

Sigma’s own proprietary OS (Optical Stabilizer) system enables handheld close-up photography

Even when just slightly stopped down

Frequency response: 40hz to 20kHz

The recipient of NEA and Guggenheim grants

PhotoRepublik 43mm ND 8 Filter Filter Size_40.5mm Sigma’s own proprietary OS (OpticalMade with an ultra durable machined aluminum ring the PhotoRepublik ND 8 filter can reduce up to 3 stops of light. ND filters reduce the amount of light reaching the lens to help increase exposure time, without affecting colour rendition. ND filters are usually used to slow down shutter speed in video mode to prevent rolling shutter. In still photography it is used to allow greater expression of movement than the cameras settings can normally capture,