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Hoya 58mm Infrared R72 Filter
Thread size (mm): 58
Effect / type: Infrared
Multi-coating: Standard
Only passes light at 720nm (high-red) and above. Gives more predictable results than filter that only pass Infrared light above 850 or 900nm
The Hoya 58mm R72 Infrared Filter is a specialized filter used for infrared photography with digital cameras and specialized infrared film. This nearly opaque filter blocks all visible light up to 720nm, enabling recording of subject matter and scenes that are not visible under normal conditions. Due to the nature of infrared photography, the filter factor for this filter is highly variable and depends largely on the ISO sensitivity in use and lighting conditions.