<P>For lenses with 77mm filter mounts.</P>
<P>This B+W Neutral Density Filter reduces the light by 2 f-stops (log density 0.6), and it is the most popular ND filter in photographic work.
It offers many benefits, for instance f/4 instead of f/8 for selective sharpness instead of a great depth of field, or 1/15 s instead of 1/60 s for a flowing instead of a frozen waterfall.
It has excellent color neutrality, costs less than the denser filters, and is recommended as part of a basic outfit.
The filter factor is 4x.</P>
<P>Computer-controlled manufacturing processes safeguard the high level of quality filters from B+W: Tradition & Innovation - Made in Germany</P>
<P>In order to deliver optimal image quality and to safeguard the high demands of lens/camera manufacturers, B+W glass filters are manufactured virtually exclusively from glass supplied by the German Schott Group.</P>
Rated 4 out of
great lightsI love these lights. They give great output for the price. Because of the low price I take them everywhere without worry. I've even used them inside a machining environment in a zip lock bag without overheating. I have had no flickering issues at all. One of my two units would not hold a charge abd Henry's exchanged it on the spot.