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Infrared Beach
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| [Notas - Normas] Nota do Artista |
Mono Infrared was developed in the 1930s for aerial survey and scientific photography. Today, it is popular among creative and imaginative photographers. Like an opera appreciation, some photographers simply despise it. It's either you like it or you don't like it
The wavelength of light is measure in units of nanometers (nm). Light shorter in wavelength than about 400nm is called ultra violet, light longer in wavelength than 700nm is called infrared. With naked eyes, people can see the narrow visible light from 400 (violet) to 700 (red) nm. If they want to see beyond 700nm (up to 900), people need help from Infrared Photography.
Infrared on a digital camera is a challenge. Most digital cameras' sensors are infrared sensitive so they are usually equipped with the infrared blocking glass (called hot mirror), making IR photography difficult if not impossible. Older digital cameras like Olympus C-2020Z, Nikon Coolpix 995 and D1, Canon Pro70 and Minolta Dimage 7 (most of which are discontinued) are capable of decent IR capability because their hot mirrors have higher IR sensitivities.
Some camera owners have removed the hot mirror from their camera's sensor or replaced it with an IR filter. It's a huge and potentially damaging sacrifice because firstly it automatically voids your camera warranty, secondly it can permanently damage your camera and its sensor, and thirdly you will be stuck with full-time IR photography.
Interesting enough, some digital cameras are somewhat acceptable for IR photography (but with very long exposure.) Here is now to test your camera.
Set your camera in program mode at ISO 100
1. Point an IR remote control (TV, VCR, whatever) into the lens from no more than 12" away.
2. Press and hold any button on the remote control
Make sure that your remote doesn't have a blinking LED
3. Look for the IR beam in the viewfinder and take a snapshot of it.
If you don't see the beam, your camera can't do IR. If the beam is dim, you can still capture IR images with an R72 IR lens filter. The Hoya R72 Filter ( B+W 092 Equivalent) is one of the most popular IR filters. It has a 50% cutoff at 720 nm (hence 72 in R72). It usually takes 5 to 6-stop adjustment on modified IR or IR sensitive cameras. On my Canon 20D, with ISO 100 under full sun at f/2.8, my shutter speed has to be at least 20 seconds or longer.
With a Hoya R72 filter, the image comes out magenta or reddish pink. You have to convert it to B&W or desaturate it.
This is a picture of Sea of Cortez taken in Puerto Peñasco. The color has NOT been been altered in Photoshop. I used a Hoya R72 Infrared filter and the shutter speed of 60 seconds. To get an IR false color scheme, I utilized a camera's custom white balance (on the green color) while the filter is attached to the lens.
Photoshop: Level, Unsharp Mask, Cropping |
evildrako, joeydrops, chiping59, thor68, simonfranco, suhailah marcou esta nota como útil
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stunning effect, guess I'm shopping for a used ir lens now
jaco
Hi Nap , has conseguido un efecto muy original. Bravo. Me gustó mucho...
Un slaudo
- mansua
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(2113) - [2006-08-22 10:41]
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Excelente resultado el infrarrojo.
Felicitaciones.
Saludos.
Hi Nap,
Great photo, i love the colors of the infrared.
Very long and usuful note :)
Very well done my friend
Greetings
Hichem
very interesting photo with IR filter Nap :)
thanks for the informative note, i got an IR filter some time ago, but never got round to try it yet...:)
Great "Infrared Effect"!Unusual way take unusual photo.I like the combination of dark sea and the sunny beach. Well done!
Regards,
chiping
execelent shot!
great effects and quite intresting note
=)
TFS
Suhialah
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(283)
fabulous