[HN Gopher] Life in Another Light, 2024 Infrared-Photography-Con...
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Life in Another Light, 2024 Infrared-Photography-Contest Winners
Author : zdw
Score : 50 points
Date : 2025-01-18 21:27 UTC (4 days ago)
(HTM) web link (www.theatlantic.com)
(TXT) w3m dump (www.theatlantic.com)
| samplatt wrote:
| These are gorgeous. Can't go past this without a heads-up for
| Greg Egan's 2014 short story _Seventh Sight_ , where the
| protagonists hack their (at the time bleeding-edge tech) eye
| implants, allowing them to be part of a vanishingly-small group
| of people that can see into the infrared and ultraviolet.
| dcminter wrote:
| I think it was in a Daedalus article that I read a passing
| reference to a technician who had had an operation for
| cataracts - the synthetic lens then allowed them to see a
| little way into the ultraviolet and thus they were able to
| calibrate a spectrometer "by eye" !
|
| Edit: Ok, I looked it up... from the Daedalus column in New
| Scientist in May 1969:
|
| _"... Daedalus recalls the story of a professor of
| spectroscopy who lost an eye-lens in an explosion. He was given
| corrective spectacles with enough UV transparency to let him
| see some way into this region of the spectrum. Accordingly, he
| could line up the departmental UV spectrometers by eye, and was
| much in demand! "_
| TeMPOraL wrote:
| Makes me think of Star Trek's Geordie LaForge, a blind engineer
| whose VISOR[0] not only gave him vision back, it extended it
| into IR, UV ranges and beyond[1].
|
| (Curiously, for a show from 1990s, the visualization of what he
| sees[2] is eerily similar to images produced by misconfigured
| diffusion models.)
|
| --
|
| [0] - Then futuristic; these days, I'm rather confident you
| could hack it up with VR glasses and enough sensors, leaving
| only the direct brain interface in the realm of sci-fi. Alas,
| the necessary suite of real sensors is still stupidly expensive
| AFAIK, way beyond a budget of a hobby project or even a product
| prototype.
|
| [1] - https://memory-alpha.fandom.com/wiki/VISOR#Capabilities
|
| [2] - There's some screencaps in the MemoryAlpha article I
| linked; can't link directly, because the site detects
| hotlinking.
| sdflhasjd wrote:
| I remember removing the IR filter from a cheap webcam and seeing
| everything in a new light (haha, pun intended) was fascinating.
| One of my black coats that didn't get hot under the sun and
| appeared more reflective and. I remember some opaque things like
| Coke being much more translucent.
|
| These winning photos are a bit boring my comparison, the ghostly
| effect of foliage in IR is cool but a bit overdone when there's
| so many and there were so many other interesting differences in
| every day objects.
|
| I'd love to do the same with my mirrorless camera but it's a
| quite destructive operation.
| MisterTea wrote:
| > I remember some opaque things like Coke being much more
| translucent.
|
| Many years ago (around 1998 or so) there was a Sony Camcorder
| which lacked or had the ability to have its IR filter removed.
| That supposedly gave it the ability to "see through" clothing
| which caused quite the uproar.
|
| I bought one of those Flir One Pro IR cameras and bought it to
| a friends party. One thing that we were surprised about was
| that it could see clear through latex balloons.
| archerx wrote:
| I had one those Sony camcorders, it's night shot was insane.
| It could see through skin as well revealing vein structure in
| a lot of detail.
| krisoft wrote:
| > One thing that we were surprised about was that it could
| see clear through latex balloons.
|
| This was something which surprised me too. Not specifically
| latex, but how many manufactured materials appear to be
| transparent in IR.
|
| The explanation I heard is that it is because dye
| manufacturers usually want to make their product keep their
| colour long even when exposed to direct sunlight. And the
| easiest way to achieve that is by selecting materials which
| are transparent in IR. If they weren't the absorbed IR energy
| would break them down faster.
|
| So people usually don't care about the IR opaqueness of their
| pigments/dyes but they care about colour fastness. And that
| is what selects for IR transparency.
| alnwlsn wrote:
| I was once involved in a project which projected Aruco
| markers in IR. So you get a slide projector, swap the bulb
| for an LED, have some slides made at the photo place, and
| you're done, right?
|
| No - slide projector slides are IR transparent on purpose,
| so that they don't absorb heat from the bulb.
| shrx wrote:
| Original article https://kolarivision.com/life-in-another-light-
| infrared-phot...
| MisterTea wrote:
| https://www.theatlantic.com/photo/2025/01/infrared-photograp...
|
| This one is something. What is making the rocks luminous, fungus?
|
| The nature scenes are spectacular.
| jazzyjackson wrote:
| I would hazard a guess the photographer got creative with a UV
| flashlight given the eerie blue glow on the stone that is not
| florescent
|
| https://www.minershop.com/pages/uvandourhobby
| krisoft wrote:
| > What is making the rocks luminous, fungus?
|
| It is the rocks themselves. Infrared luminescence is the name
| of the effect. It is a bit like fluorescence except that the
| emission occurs in the infrared rather than the visible part of
| the spectrum.
|
| https://pubs.usgs.gov/bul/1052c/report.pdf
| rebalh wrote:
| omg these are so beautiful. I am a photography enthusiast and I
| didn't knew there was something called infrared photography. I
| don't quite get the name, how is done?
| jazzyjackson wrote:
| With the use of a sensor or film sensitive to infrared light,
| and optionally the use of deep red/orange lens filter to block
| out all the other wavelengths.
|
| Rollei still manufacturers infrared 35mm film, I think it used
| to be used for aerial surveying, because green foliage is also
| reflecting lots of infrared
|
| For digital cameras a lot of sensors are already sensitive but
| it's undesirable because it shows up as false colors, red hot
| things will appear pink or purple, so digital cameras have
| internal infrared filters. Go on eBay and search infrared
| converted camera, lots to choose from, iirc it's a pretty
| simple surgery if you're the type to take things apart and put
| them back together
|
| Here's a nice guide for more https://phlogger.co.uk/how-to-
| shoot-colour-infrared-film-by-...
| CharlesW wrote:
| https://en.wikipedia.org/wiki/Infrared_photography
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