|
Currently our local streetlights are predominantly Sodium (Yellow cast) and the Astronomik CLS CCD filter seems to work although it lengthens exposure time quite a bit. I haven't got anything else to compare it with although I have been experimenting with a standard Wratten C80A (Light Blue) filter. It seems to be effective and not too hard to counterbalance the bluish cast in processing. Again it requires longer exposure times.
|