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Interesting. I would've liked to see the result of 1600 iso at 30s too - just for comparison. On a note about light pollution, the mention of sodium street lam
by e12e 9y ago
Interesting. I would've liked to see the result of 1600 iso at 30s too - just for comparison.
On a note about light pollution, the mention of sodium street lamps immediately made me think of filters - stars are suns, so should have wide spectra - why not just filter out the orange bit? Apparently I'm not the first with the idea (obviously):
http://www.nezumi.demon.co.uk/nonad/spectra.htm http://www.nezumi.demon.co.uk/nonad/spectra.htm
https://petapixel.com/2016/12/14/purenight-filter-cuts-light-pollution-better-night-sky-photos/ https://petapixel.com/2016/12/14/purenight-filter-cuts-light... (has some nice with/without filter images)
- KaiserPro 9y agomy town has just gone to LED now, so its a bit harder to do :/ Still I'm sure one could filter out the peaks from the LEDs (they are phosphor based still) but it's not going to be effective as taking out the sodium notch.
- lobster_johnson 9y agoThe PureNight filter is coincidentally a crowdfunded product by Lonely Speck, the people (Ian Norman and Diana Southern) who contributed this story article.