Quote:
Originally Posted by JA
Hi Richard & Hans,
Here is a comparison I did a few years back in Bortle 6 Brighton (SQM =19.14 & 2370 µcd/m^2) of a couple of similar broadband didmyium type photographic filters (Hoya Intensifier V Marumi redhancer V no filter) with nearby (@ ~10-20m) multiple High Pressure Sodium Lamps. Both filters showed an improvement- The Marumi Redhancer more so. See ....
https://www.iceinspace.com.au/forum/...d.php?t=159955
Best
JA
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Thats a very interesting comparison. Sadly where I live we have entirely transitioned to broadband LED streetlighting. Your comparison makes me even more nostalgic for the cyberpunk aesthetic of sodium street lighting