The Hoya 72mm 81B Hoya Multi-Coated (HMC) Glass filter controls the bluish coloration that affects daylight film. It can also remove excessive blue from the effects of electronic flash.
An 81B filter will replace even more yellow than an 81A and bring skin tones back to a more appealing level. An 81B can also be used with electronic flash to reduce the amount of "blue" generated by the flash. The 81 series (81A, B, C, D and EF) allows you to choose how much warmth you wish to replace in the image.
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