B+W Filter 49mm Circ. Pol. Overview
Highly efficient standard circular polarizing filter for all cameras with beam splitters in the light paths of their TTL exposure meter and with autofocus lenses. Circular polarization has the same pictorial effect as linear polarization, but allows for proper exposure metering and/or autofocus distance settings. This filter is specially designed to be used with auto-exposure and auto-focus SLR, digital, and video cameras. It does not influence the metering systems of these cameras. Filter factor is 2.3 to 2.8.
Highly efficient standard circular polarizing filter for all cameras with beam splitters in the light paths of their TTL exposure meter and with autofocus lenses. Circular polarization has the same pictorial effect as linear polarization, but allows for proper exposure metering and/or autofocus distance settings. This filter is specially designed to be used with auto-exposure and auto-focus SLR, digital, and video cameras. It does not influence the metering systems of these cameras. Filter factor is 2.3 to 2.8.
