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Product Description
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.
Customer Reviews
Most Helpful Customer Reviews
19 of 20 people found the following review helpful
Amazon Verified Purchase
I use this filter with my Nikon D60 and it does a super job on IR pics. If you are new to IR photography, this is the filter for you! FYI, I shoot it in bright daylight using the same 90 degree rule you would use with a polarizer. Generally, I set the camera on manual, close down the aperture to about F22, set the white balance to auto, set the shutter speed to 30 seconds ( yes, 30 seconds, so you need a tripod ), ISO to 1600, pre-focus with the IR lens off, lock the focus, then take the pic. At 30 seconds, you're going to want a less breezy day, but the long exposure gives you those wispy, eerie, clouds. You're going to get a REALLY red image, but that's ok, you can tweak it in PS or iPhoto or even the viewnx program that comes with the D60. You can manipulate the hues and saturations, contrasts and tints in these programs to get your desired effect. I don't think you really need a more expensive IR filter when this one works just fine..........
11 of 11 people found the following review helpful
Amazon Verified Purchase
This filter blocks nearly all visible light. Consequently, it looks opaque and black to the naked eye, though if you hold it up to a strong light source, you will be able to see a dull, deep red image through it. The R72 is one of the most common filters used in infrared (IR) photography. If you get really serious about shooting in IR, you may want to look into having your camera modified to remove its built-in IR-blocking filter, but even with that filter in place, some cameras can be used for IR photography, given a suitably long exposure. (Incidentally, what we are talking about here is "near-infrared" light, which, although invisible to our eyes, behaves very much like normal light in the way it reflects off objects. This is not the same as seeing heat as light, which involves a deeper portion of the IR spectrum.)
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.
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.
6 of 6 people found the following review helpful
Amazon Verified Purchase
This works very well on my Nikon D40 and kit lens. I can almost hand-hold this but it does require about a 1/2 second shutter on a clear sunny day so a tripod is preferred. After taking a picture you will need to do some post processing with software like Gimp and a RAW editor. There are plenty of good free ones out there. Take your pictures in RAW mode and after you download them to your computer in your RAW editor set the white balance to a green item in the picture. Then swap the red and blue channels. This will allow for a blue sky with all the flora appearing a ghostly white color. For more instructions Google for "IR workflow".
Here is a picture I took with my Hoya 52mm filter ordered from Amazon.com:
[...]
Here is a picture I took with my Hoya 52mm filter ordered from Amazon.com:
[...]
Most Recent Customer Reviews
its ok
it takes time to get the right settings, but out would flawlessly. of course it isn't going to be as good add a modified camera for ir shots, but it does a decent job if you don't... Read more
Published 19 days ago by Nathan E. Wilkinson
Product is fine, as advertised...i am the problem ;-)
Received a Hoya 52mm RM-72 infrared filter, as advertised, at a great price. Now if I could just figure out how to get decent pictures on my 5D MK II, I'd be all set. ;-)
Published 6 months ago by Hampton
Cheap solution
I just got interested in infrared photography. (I'm an amateur.) I did some online research and got a book. Read more
Published 13 months ago by Alex Vrenios
Quick Review
Image quality does suffer a little, but that is the price you pay for this kind of a filter. If you want high quality IR photos at high resolutions, then you should convert your... Read more
Published 17 months ago by NJD
Sensitive material, but high quality
I'm impressed by the quality of photos that i'm getting with this on my D40, however, the filter itself seems very...touchy. Read more
Published on March 24, 2010 by Aaron Chancey
Really Cool
I took me a little while to figure out how to use this, but once you get it down it is a lot of fun. I would recommend using a tripod and using a longer shutter speed. Read more
Published on November 16, 2009 by Pharmer Craig
Inexpensive IR photography option for a beginner
Recently purchased this filter for my Nikon D60. After reading the reviews here and other places, I was not quite sure if this filter would work well for IR photography with my... Read more
Published on October 9, 2009 by Don Cerebros
Infrared Filter
If you want to be a little more creative with your photography, you should consider getting an infrared filter for your digital camera. Read more
Published on September 12, 2009 by M. Smith
INFRARED FILTER
I bought this filter because it was manufactured by a very reputed company. I am sorry to say that the quality is not what it should be. Read more
Published on June 27, 2009 by PRITPAL SINGH
darkness
it takes some time to figure out exposure, and aperture settings but, with a digital camera, you can master it in a day or so.
Gives beautiful photos too
Gives beautiful photos too
Published on June 9, 2009 by stephen g
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