Somewhere in Georgia
Sigma SD1M + 35mm F1.4 DG HSM Art + 1/200 @ f/8, ISO 100
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Hi Robert,Hi Darr,
Did you add a soft glow to this shot of the Cabin "Somewhere In Georgia" or is that out of the camera. It's pretty.
The technical answer to your question for Darlene is "No".Great darr for sharing the IR shooting. Is it possible to have color IR photo? TAM NGUYEN
Thank you Tam (and Ted).Great darr for sharing the IR shooting. Is it possible to have color IR photo?
Darr, please allow me to clarify some statements.Thank you Tam (and Ted).
Even with an IR filter attached to the lens, all 3 layers respond, including the "blue" top layer. And the X3F file itself remains a 3-channel color image.IR photography with the SD1M is black and white.
All of the false-color images above came from a standard SD1M (dust-cover removed) with an IR filter on the lens. No post-processing at all except that I sharpened one of them. I've also had some fun by starting with a monochrome image then playing with individual RGB curves so that tint hues become dependent on pixel luminosity.The false-color Ted refers to cannot be obtained with the SD1M unless the user can manipulate it in via post-processing somehow.
Darr, Is that the kind of modification where the Bayer-pattern CFA is permanently replaced by a single color filter?The false-color IR photography seen on the web was produced by cameras that probably were modified at the sensor level, which the Foveon cannot be (I inquired at LifePixel).
Tam, the lowest I have is 680nm. Your 590nm will allow visible wavelengths to reach the sensor - more so than your 720nm. To guess what would happen you need to see the manufacturer's data for the filter - specifically the spectral transmission curve.Thanks Ted and Darr for valued explanation. I am wondering if we use IR590 instead of IR720, SD1m will produce some yellow/blue color as bayer sensor?
Tam,Thanks Ted and Darr for valued explanation. I am wondering if we use IR590 instead of IR720, SD1m will produce some yellow/blue color as bayer sensor?