QUOTE(renato1970 @ Mar 9 2011, 06:59 PM)

Qualcuno sa se � possibile mopntare un filtro polarizzatore Hoya HD sopra un filtro Hoya UV HD?
e se sono compatibili sono con hoya o anche altri?
Grazie

La soluzione potrebbe essere il filtro HOYA UV-PL-CIRCULAR.
dal catalogo HOYA "A revolutionary �hybrid� design which combines the effect of two
different filters in one ring. This filter eliminates ultraviolet rays to
remove haze from outdoor shots as well as polarizing the light to
remove reflections, and increase color saturation, without affecting
the overall color balance. Fitted in a slim rotating 5mm ring, this
filter is invaluable to landscape and other photographers who need
to avoid vignetting with wide angle lenses"
Saluti
Franco