Buy! Hoya 49mm RM-72 Infrared Filter
( Product Infomation Posted On Time : Mar 25, 2012 05:16:02 View Last Update Infomation At Amazon)
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.
Hoya 49mm RM-72 Infrared Filter 
- Available in most popular sizes.
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