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Hoya 52mm R-72 Infrared Filter
|Photo Filter Thread Size||52 Millimeters|
|Photo Filter Effect Type||Infrared|
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The Hoya R72 Infrared filter is specifically designed for infrared photography with digital cameras and infrared film. Infrared light starts in the high-red area of the visible spectrum at around 750nm and goes up beyond 1000nm. This light is not visible to the naked eye. Looking through the R72 filter it looks almost opaque because the filter is only passing light from the very high red edge of the visible spectrum and infrared light. Infrared photography yields very interesting, sometimes stunning, and creative result as object in a scene reflect infrared light differently than normal light. Due to the nature of infrared light, filter factor and exposure compensation vary widely from visible light and depends largely on lighting conditions.
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I have used this filter with an unmodified Canon EOS 5D Mark II digital SLR camera and a Canon EF 50mm f/1.8 lens (the original version from the 1980s, not the all-plastic one made now, which may or may not take the same size filters). The camera's auto-focus capability works perfectly with the filter in place. In direct sunlight, I have found that with the camera on a tripod, an exposure of about 15 seconds at f/5.6, ISO 400 produces a good image. After that, what to do is a matter of creative judgment; the picture obviously won't be in natural colors (that's the whole point of shooting in IR), so you can adjust white balance however you like. I often exchange the red and blue channels, as well. Sometimes I reduce the end result to grayscale, sometimes not.
Now, one may ask at this point, if we are photographing infrared light, what is all this talk of red and blue and white? The answer is that the camera's sensor, though designed primarily to pick up visible light, is also somewhat sensitive to IR. However, the camera cannot distinguish between IR and visible light. The IR that it senses, it records (incorrectly) as shades of visible light (mostly red). This is what we see in digital IR photography. We are seeing, in colors we can see, an image made from light that we cannot see directly.
IR photography is a lot of fun and at times it provides a strange sense of discovery. It is strange and sometimes thrilling to see our familiar world in such an unfamiliar way. The Hoya R72 filter is a good choice for IR work.
You will also have to post process your pictures, as they come out looking nothing like the images you see online. With Photoshop and a little patience, you can easily learn to do this.
Or do what I did-download the free Gimp 2.8 image manipulation program.
A word on IR conversion. I've not done this but there are places that will do it for you. It's not cheap, but it allows you to make short, even hand held exposures. And, you should consider what you might do with that camera when the thrill wears off... You might consider buying a conversion camera from someone who has recently lost interest! I'm happy with the filter and I'm guessing so will you be.
Here is a picture I took with my Hoya 52mm filter ordered from Amazon.com:
I've been using B+W filters mainly for years now, but this Hoya does seem very well made. It screws on smoothly.
Top reviews from other countries
As my camera won't focus due to the image being too dark, it's been a case of framing the photo with the camera on a tripod, manually focussing, then carefully attaching the filter and taking the shot.
You need to read up on the web about how to process the images for best results, but the filter is definitely very good, and allows some sharp pictures. Do a search on "Infrared" on photography forums like Talk Photography.
Another forum member reported that they tried a cheaper filter and had major issues with uneven exposure across the frame, but when they bought the Hoya filter this completely resolved the issue.
I've always tended to use Hoya filters and as ever, this one doesn't disappoint.
The photo, when taken, is completely red. With editing in Lightroom or similar programs, it completely transforms the image!
Would recommend as it's great to play around with!
Some of my example images are below
But once you can expose and focus correctly, the results are quite pleasing!