[Don Pensack]

Originally Posted by chromus

Can't find much literature on these, but they were released this week and cover normal Na and Hg vapour like the old version PLUS now LED street lighting.

http://www.ontariotelescope.com/LPS-...er_p_1454.html

LED lighting is fairly broad spectrum and has emission near the wavelengths you might want to shoot.
If your municipality has a lot of LED lighting, this may extend your ability to expose by a small amount but don't expect miracles.
Imaging is just plain difficult to do in a city.

https://en.wikipedia.org/wiki/LED_street_light