Hoya 49mm RM-90 Infrared Glass Filter

SKU: HY49RM90

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Hoya 49 Infra-Red Filter Specifications

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About Hoya 49 Infra-Red Filter

Used for photography with infrared films.

R72 passes only infrared rays above 720nm.

RM90 passes only that above 900nm.

Often used in crime detection, medical photography, detection of distribution of vegetation, etc.