 Carrie Bayless |
Digital Infrared I love the look of Infrared pictures and was wondering for those with experience or knowledge of producing infrared pictures what it takes to create this type of process. I'm sure it's more than a simple explanation, so just the basics would be a startful help. Can any digital camera work? Do you need specific filters? Is this a difficult process? Or can an average photographer learn it? What are some good books or resources to learning this technique? Thanks!
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W. |
Hi Carrie, "I love the look of Infrared pictures" What exactly do you mean by that? Because IR images are basically low contrast Black & White images. Any coloration – like the greenish cast you often see in military IR vids – is not inherent to the image being IR, but artificially added to enhance the apparent contrast and resolution. So please describe in some detail what YOU think IR pictures look like.
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Alan N. Marcus |
Hi Carrie, Most digital cameras are sensitive to IR radiation. You can test yours with ease. In a darkened room, use a friend for a subject, have them aim a TV remote at his/her face. Ask them to press the volume control button while you compose an image. If your camera is sensitive to IR, you will be able to see an image. Having established that your camera will “see” IR, you can experiment taking picture using a suitable IR source. You don’t need an IR filter in a darkened room as an IR filter passes IR and rejects visible light. You can use an electric heater as the light source. You need one that when plugged in an operating, has red glowing heating elements. These won’t be the wonderful IR pictures you admire but it’s a start without investing any money. You can add an IR filter which might allow you to expand your IR taking circumstances.. Incidentally, the older stile military night vision scopes uses an IR source which is an ordinary flashlight with the clear lens replaced by an IR filter. IR light from the flashlight illumined the subject, good for close range viewing. For distance viewing, some parts of the scene were hot enough to radiate IR energy. The IR radiation is made visible by the scope which is kinda like a TV camera, sensitive to IR, outputted an image on a special TV screen which is a green phosphor screen. These have all been replaced by “starlight scopes” these are different, they amplify ambient light electronically. Alan Marcus
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- Ken Smith Contact Ken Smith Ken Smith's Gallery |
Here's a great link: http://dpfwiw.com/ir.htm#sensitive I recently had my Canon Digital Rebel converted for IR. I was not ideal for IR photography with the Hoya IR filter--unless I wanted very long exposures. I'm real happy with the converted camera. Before I converted, I used an older Olympus C2100 which was more sensitive to the near IR channel. And I used the Hoya IR 72 filter. Send me an e-mail if you have other questions on IR. v/r Ken
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- Gregory LaGrange Contact Gregory LaGrange Gregory LaGrange's Gallery |
Hi Carrie, "I love the look of Infrared pictures" What exactly do you mean by that?
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