Tiffen 52mm 81A Filter

Product descriptionThe Tiffen 81A Light Balancing Filter helps to decrease the color temperature by 200K in order to warm the image slightly in order to match the color quality of illumination When using an 81A filter, you will be able to attain 3200K balance when the prevailing light source is 3400K The warming effect of this filter requires a 03-stop increase in exposure for normal resultsThis filter is made using colorcore technology, a process that involves laminating the filter substrate between 2 pieces of optical glass, grinding flat to a tolerance of 110, 000th of an inch, and then mounting to precision metal ringsLight balancing filter decreases color temperature and provides a warming effectSubtracts 200K in order to attain 3200K color balance from 3400K illuminationFilter factor of 13 requires a 03-stop increase in exposureFilter Properties At A glanceFront
Threads: YesAccepts Snap In
Lens cap: YesFilter Ring
Depth (Less Threads):
5mmcoating: Un-coatedFilter
Factor: 03 - StopsAmazoncomUseful with daylight-corrected film in cool-light conditions