Looking east at 3 PM, February 19, 2007. Quabbin Mountain.
Moscow 5 camera.
Looking north as above.
Tower on Quabbin Mountain
Polarizing filter on a 90mm Super Symmar mounted on a Toyo 45C.
The sky was highly polarized at my position. Readings dropped five stops as I rotated the filter.
Toyo 45 with Super Symmar
Looking North From Winsor Dam - Moscow 5