_DSC4188-Iris-UV2 - a photo on Flickriver

_DSC4188-Iris-UV2

            Iris. UV light found by subtraction.

I took a full spectrum picture and I took another picture with a UV filter in place. I subtracted them and amplified the difference. 

I think the blue is UV light. The red might be a little infrared getting filtered. Green is different UV?

Wind or motion between the two photos shows up as a strong outline or mis-registration.

Lens was a Nikon AF-S DX 35mm @ ƒ/3.2 or so.

Taken on: May 6, 2018

Tags:

ultraviolet

filter

subtract

infrared « less

Groups appears in: • Experiments [try the random link] • Digital Infrared

Camera: Sony NEX-5C, f/1.0, 1/1600 sec, ISO 200 (more info) (hide info)

Camera:	Sony NEX-5C
Lens:	----
Aperture:	f/1.0
Exposure Time:	0.001 sec (1/1600)
ISO:	200
Exposure Bias:	-0.3 EV
Flash:	Off, Did not fire
Exposure Program:	Shutter speed priority AE
Exposure Mode:	Auto
Metering Mode:	Multi-segment
White Balance:	Manual
Color Space:	Uncalibrated
Software:	Adobe Photoshop CS6 (Macintosh)
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