Mark Jones Posted July 23, 2019 Share Posted July 23, 2019 https://www.youtube.com/watch?v=reeLH_UYh7U https://sunscreenr.com/ watching above links it appears the prototype had a electronic viewfinder?but the final product is plugged into a mini usb socket on the phone and uses phone screen as viewfinder. Link to comment
dabateman Posted July 23, 2019 Share Posted July 23, 2019 But if you use reflective sunscreen?This seems like a market ploy. Link to comment
Andy Perrin Posted July 23, 2019 Share Posted July 23, 2019 I saw that ages ago but I have an iPhone so never bought one. They look like fun, though. Link to comment
Andrea B. Posted July 23, 2019 Share Posted July 23, 2019 Well we are one step closer to not having to buy those $7000 UV-Nikkors !!! The easy part is the UV-pass filter and the simple lens, but I wonder where they found a UV-sensitive sensor for the little device? Link to comment
Andy Perrin Posted July 23, 2019 Share Posted July 23, 2019 Hah, they don't say what wavelengths are being imaged, there's no false color, and probably the resolution isn't that hot. You know the Raspberry Pi hack that we had a thread on a few days ago? That would do it for something like this. But there is definitely an attractive quality to having a UV point-and-shoot! Link to comment
Mark Jones Posted July 23, 2019 Author Share Posted July 23, 2019 the shark tank episode they were on , I think said it was $45 to make them when they had the integrated viewfinder screen, probabaly cheaper now that they are using the smartphone screen.all they needed to do was find a cheap mono webcamera who's hot filter was easily removed with a simple lens that transmits uva, I can't find any info on thier kickstarter though besides the one comment that they got ripped off and the one youtube video review which looks suspiciously planted. Link to comment
enricosavazzi Posted July 26, 2019 Share Posted July 26, 2019 It does look like a rather ordinary converted webcam. Image quality of the samples on the website is wildly varying, so possibly shot with different cameras. UV focus shift is evident in some samples. A few years ago I started a thread about a converted GoPro action camera and a few movie/video legacy lenses. It provided the same or better image quality than some of these samples, but still limited to wavelengths around 380 nm:https://www.ultravioletphotography.com/content/index.php/topic/1357-gopro-hero-4-for-uv-photographyvideo Link to comment
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