A
Neutral Density (ND) filter is a dark piece of glass which you can place in front of your lens.
It was like looking through a glass darkly, seeing things through a filter, a
neutral density."
The Rhea is Admesy's high-end spectrometer with a cooled CCD detector and
neutral density filter wheel, combining great sensitivity and dynamic range.
At the same time, the selected lens as well as
neutral density filters or spectral filters are also taken into account.
NiSi has now built a comprehensive square filter range that includes ND (
Neutral Density ) , GND (Graduated
Neutral Density) and filter holder systems.
Similar to a
neutral density filter that increases in density towards the edges, the apodisation element creates beautiful transitions of in-focus to out-of-focus areas within an image, making for exceptionally soft, smooth bokeh that adds depth and dimensionality.
The risk
neutral density is an important tool for analyzing the dynamics of financial markets and traders' attitudes and reactions to already experienced shocks by financial markets as well as the potential ones.
Bartley points out that chips in digital cameras are so light-sensitive that one has to add
neutral density filters or reduce the aperture.