Neutral gray filters reduce the intensity of all wavelengths. This reduces the brightness of the image. This is useful if you can no longer ensure correct exposure with the camera settings. Depending on the strength of the filter, less or more light is transmitted.
Features of the filters
- Available in various optical densities
- UV/VIS/Near-IR
- Used with monochrome or color cameras
operating in the visible and/or near-IR spectrum - Contains identical filter threads with male and female threads
at both ends for stacking - The sum of the optical density of two or more
filters stacked together equals the total density - Ni filters are unique in maintaining exceptional spectral neutrality over the entire visible to near IR range, while severely limiting unwanted backscatter. Reflections over the same range.
- Excellent parallelism, optical flatness and
surface quality - Customized densities available on request
Mounting and size options
- Threaded mounting, C/CS mounting,
Slot mounting, unmounted - Sizes for threaded brackets: M13.25 - M105
- Customized sizes and shapes available