Happy National Find A Rainbow Day!!!
The recent Find A Rainbow Day!
Find A Rainbow Day ! ! !
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Monday was a day to honor rainbows: ROYGBIV to help them to remember the sequence of colors in a rainbow: red, orange, yellow, green, blue, indigo, violet. Many forms of airborne water can cause a rainbow including, rain, mist, spray, and dew.
Infrared Explained: Any visible light frequencies are reflected and refracted into any rainbow’s arc and show up as individual colors starting at the violet range all the way to red. The red spectrum is the longest ray, almost a wave as the longer spectrums have the personality of waves. Any infrared light is also being reflected and refracted but it is NOT visible to the eye. Since infrared light is subject to being absorbed as heat, the light does not show up as a lighter portion of the infrared film, rendering the infrared band appearing to be darker than the non-infrared sectors of light. Also notice “ghosting” of leaves on some of the trees. Since is is a darker value, it is showing of the branches transpiring water, therefore being cooler (the process is what gives that “cool” feel of being by plants). This was the original great asset of infrared photography’s use for military purposes in the jungles.
Photo #1 is an image overlay of the visible light photo on top of the infrared. I allowed the transparency to see both photos equally. See the below two photos for exposure information for each of the two photos..
Infrared vs. Visible Light Rainbow: Photo 2 & 3 are photos are of a rainbow in Oak Forest, Illinois, of a repeat post of the absolute original “Photo Of The Day” (now “Featured Photo”) segment that started Labor Day weekend in 2019. In the segment, I show the difference between a rainbow in an infrared photo by displaying the spectrum they use as compared to a visible light photo. Note that the spectrum is down on the near side shifted over and out of the red spectrum, as the featured rainbows show the results.
Photo #2 is taken on Kodacolor then ASA (ISO) 100 speed film processed C-41 with a tripod through a Nikon EM with a Nikon 26 mm lens, filter=polarizer, Aperture=22 f/stop, shutter-speed 1/30th second. Enlargements processed standard color process on 4×6″ silk standard color image enlargement paper.
Photo #3 is taken with the same Nikon 26 mm lens put onto a Nikon FE camera, filter=polarizer and yellow filter, Aperture=22 f/stop, shutter-speed 1/15th second, loaded with Kodak Ektachrome Infrared Color IE 135-20 Infrared Slide Film processed E-6 using Kodak Ektachrome Chemicals. Enlargement processed Type R color positive paper and R-3000 chemistry onto 3½x5″ glossy negative color image enlargement paper.
180° Rainbow: Full 180° Rainbow in Oak Forest, Illinois. Photos were taken near sunset on 10/11/2021, published same day.
Photo Set #4 taken with a Samsung Galaxy A71 with the factory Quad camera Standard-wide: 64 MP 1/1.72-inch sensor with 0.8µm pixels and 26 mm-equivalent f/1.8 PDAF lens Ultra-wide: 12 MP sensor with f/2.2 aperture lens.
Winter Sundog: A rare formation of a sundog and halo arc in winter. Photo was taken in the winter of 1982.
Photo #5 taken with a Nikon FE camera mounted on a mini-pod through a Nikon 26 mm lens, filter=NONE, Aperture=2.8 f/stop, shutter-speed 1/15th second, loaded with Fujicolor 400 Color 135 Negative Film processed with C-41 Processing Chemicals, and a Type C Print using the RA-4 enlargement paper process, onto a 4X6″ semi-gloss print.
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