61.60 CHF
Hoya R72 Infrarot Filter
72 mm, Infrared-passing filter
Hoya R72 Infrarot Filter
72 mm, Infrared-passing filter
astromodified camera = camera in which the infrared cut filter has been removed so that an extended spectrum in the infrared range can be recorded. The Hoya IR72 filter lets IR of 720nm through and filters out the visible light. This IR range is more for effect photography in daylight. The aforementioned IR cut filter lets IR of 720nm through, so that this range can still be captured at all with an
unmodified camera. The human eye can also just about perceive this wavelength: Just hold the IR72 against a light source (lamp - NOT against the sun!) and you can just about make it out.This filter is not a substitute for an astro-modified camera. I also don't know how effective the filter is when you put it on a normal camera, as these have an infrared filter.