| Linear polarizing filter | A filter which only passes light vibrating in a certain direction. Since the vibrational locus of the light allowed to pass through the filter is linear in nature, the filter is called a linear polarizing filter. This type of filter eliminates reflections from glass and water the same way as a circular polarizing filter, but it cannot be used effectively with most auto exposure and autofocus cameras as it will cause exposure errors in AE cameras equipped with TTL metering systems using half-mirrors, and will cause focusing errors in AF cameras incorporating AF rangefinding systems using half-mirrors. |
