[AlexN]

Purchased this with Astrophotography in mind, however I found after I bought it that they have a photography specific CLS, and that this one is more of a visual filter.

Blurb from Astronomik:
The Astronomik CLS blocks the light of the spectral lines of mercury and sodium-vapor lamps and lets the largest part of the visible light and H-alpha emissions pass. All the important emission lines, as well as the spectral region that the very well dark adapted eye can see, can pass through the filter.

I Paid $90 for it on IIS about 5 months ago... I've not used it since.

Happy to take $90 for it.

Pics on request.

Pickup in North Brisbane (4510)
Happy to post it.