With a light intensity
reduction of ten f-stops, this B+W Neutral Density Filter has a slightly
stronger warm tone than the ND 106. Its principal field of application
is the observation and documentation of industrial processes with
extreme brightness, such as steel furnaces, incinerators, glowing
filaments in halogen- and other bulbs. The filter factor is 1000x.
Each glass surface is vacuum coated with one layer of Anti-Reflection
coating. This single layer helps to prevent internal ghosting and
reflections. It also improves light transmission from approximately 92%
(uncoated glass) to over 98%.
This filter uses our Slim-Line mount made of brass for wide angle
lenses. They do not have a front accessory thread to avoid vignetting
with lenses as wide as 17mm in 35mm format. Some report success with
lenses as wide as 16mm. A slip on cap is supplied with Slim filters,
sizes 49mm through 82mm.
The height is only 3mm. In the case of rotatable polarizing filters, the height is 5mm and made of aluminum.