Why bother changing base ISO?

Started Jul 18, 2007 | Discussions thread
Julia Borg Veteran Member • Posts: 7,280
Re: There's no red data in the sky

Fotomat wrote:

Sorry if this is off topic but what's a good filter for sodium-vapor
lights?

I need to know your camera model at least, better - to have a nef file with the typical scene. sodium-vapor lights are not continuous-spectrum. low pressure olamps are very close to monochromatic emission of nice golden 590nm and images turn good being toned blue, sepia, or gold. high pressure lamps emit broader spectrum and might allow color images.

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Julia

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