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Old 17th May 2004, 04:08 PM   #1
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Talking Fun with my digital camera

I goofed around with my camera this weekend. I got my new Hoya R72-filter last week so I thought I'd try it out. The effect is amazing.

Picture 1
Picture 2
Picture 3
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Old 17th May 2004, 04:36 PM   #2
roibm is offline roibm  Romania
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brilliant
also, see here:
http://www.kaya-optics.com/products/experiments.shtml
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Old 17th May 2004, 07:22 PM   #3
Bricolo is offline Bricolo  France
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sweet!
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Old 17th May 2004, 07:32 PM   #4
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Quote:
Originally posted by roibm
brilliant
also, see here:
http://www.kaya-optics.com/products/experiments.shtml
And why would the background of the KAYA sign reflect so much
more IR than the text on it?
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Old 17th May 2004, 08:01 PM   #5
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I can inform all of you that my filter doesn't work like that.
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Old 17th May 2004, 09:02 PM   #6
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Quote:
Originally posted by Mikael Abdellah
I can inform all of you that my filter doesn't work like that.
Is that based on assumptions and theory only or have you
actually tested empirically?
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Old 17th May 2004, 09:42 PM   #7
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I've tested it
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Old 20th May 2004, 01:03 AM   #8
EC8010 is offline EC8010  United Kingdom
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This will all depend on the lens you use. If you use a "classic" 50mm lens, it will pass IR perfectly. If you use a modern zoom lens that requires elements that produce reduce dispersion, they do not pass IR nearly as well. This is practical experience. I successfully rehearsed a shot using a zoom lens with on a CCD body, then took the same shot with a 50mm prime lens on a 35mm body and it was overloaded by IR.
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Old 22nd May 2004, 03:40 PM   #9
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Why do red leds often look blurry in photos when the rest of the subject looks ok?
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Old 22nd May 2004, 04:16 PM   #10
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Quote:
Originally posted by Circlotron
Why do red leds often look blurry in photos when the rest of the subject looks ok?
Don't know, but I recently took some pictures and the red LED
turned out not only blurry but also purple! I understand
that purple LEDs are the latest hype, but I got it for the price
of a red LED in those pictures.
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