The attached image was taken with a modified Sony A6300 that has been converted to a mono sensor with no CFA and no UV-IR cut filter making it B&W only with full spectrum IR. And for this shot, I used a Red filter in which the IR light, which also passes through the red filter, produces this result. The dandelion is completely yellow in visible light and I cannot see the black squiggles that are so prominent in IR light. I was not expecting to see this result.
Hit the download button and then click on the image again to blow it up so you can see what I am seeing.
What is happening are the things we see in black, although they are close to the same yellow color, do not reflect IR light and show up as black.
Very nice. Would love to see it in IR when it goes to seed.
kpmac wrote:
Very nice. Would love to see it in IR when it goes to seed.
I will seek one out when one goes to seed.
Thank you
There is a new section devoted to IR camera photography, you can subscribe to it under your profile.
"mono sensor with no CFA and no UV-IR cut filter making it B&W only with full spectrum IR. " ?????? What's a CFA Filter!! That's a new one on me...
So, my education continues, thank you Jim: "to convert the color image sensor of a generic digital camera to a monochrome sensor, we must remove the bayer filter layer(= Color Filter Array=CFA) on the image sensor. This is called “Debayering”." To be technical "A Bayer filter mosaic is a color filter array (CFA) for arranging RGB color filters on a square grid of photosensors. Its particular arrangement of color filters is used in most single-chip digital image sensors used in digital cameras, camcorders, and scanners to create a color image. " Named after Mr Bayer of Kodak the originators of digital photography... who's ol boy management said, "but we make film."
http://www.centralds.net/cam/?p=8561
dpullum wrote:
There is a new section devoted to IR camera photography, you can subscribe to it under your profile.
"mono sensor with no CFA and no UV-IR cut filter making it B&W only with full spectrum IR. " ?????? What's a CFA Filter!! That's a new one on me...
So, my education continues, thank you Jim: "to convert the color image sensor of a generic digital camera to a monochrome sensor, we must remove the bayer filter layer(= Color Filter Array=CFA) on the image sensor. This is called “Debayering”." To be technical "A Bayer filter mosaic is a color filter array (CFA) for arranging RGB color filters on a square grid of photosensors. Its particular arrangement of color filters is used in most single-chip digital image sensors used in digital cameras, camcorders, and scanners to create a color image. " Named after Mr Bayer of Kodak the originators of digital photography... who's ol boy management said, "but we make film."
http://www.centralds.net/cam/?p=8561There is a new section devoted to IR camera photog... (
show quote)
You got it correct about the CFA. It is a different experience shooting a camera without the CFA. Reminds me of my Tri-X film days, only better. I can use all manner of colored filters and IR filters, with the same effects. If I want a yellow filter effect, I can use a cut UV-IR filter to remove the IR light, plus a yellow filter, and I get the same text book effect that a yellow filter produces.
But an added benefit is that I may elect to use a legacy lens that is subject to CA problems. But by using a filter that limits what light reaches the sensor, no CA distortion shows up.
This camera has turned out to be such a fun camera to play with. So this, and another modified camera that still has the CFA, but this time modified to full spectrum IR so I can use color.
Thank you for pointing out the IR forum. I hadn't noticed that it had been added.
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