Item No. 1437, 1372, 1371, 1370, 1369, 1368, 1709
Spectrum Filter SF -2 with filter thread 55mm to 82mm
The Spectrum Filter SF -2 works for all water colors and converts ambient light to white light within a depth range from about 2 to 15 meters.
Filters for Cameras
Due to the light absorption of the water column many colors are missing and the camera can no more recover all color after white balance.
The filter compensates the light absorption of the water column and the camera can restore all colors after white balance.
KELDAN Spectrum Filters are scientifically engineered red filters based on spectral measurements of the lighting conditions underwater. KELDAN Spectrum Filters convert the ambient light into a daylight spectrum in order to restore correct colors and to optimize white balancing.
The filter characteristics are carefully adjusted not only to balance the RGB color channels but also to correct for a very smooth spectrum with excellent color rendering capabilities.
Item No. 1437, 1372, 1371, 1370, 1369, 1368, 1709
The Spectrum Filter SF -2 works for all water colors and converts ambient light to white light within a depth range from about 2 to 15 meters.
Item No. 1447, 1377, 1376, 1375, 1374, 1373, 1250, 1710
The Spectrum Filter SF -4 B is designed for blue water and converts ambient light to white light within a depth range from about 6 to 20 meters.
Item No. 1461, 1462, 1463, 1464, 1465, 1466, 1711
The Spectrum Filter SF -4 G is designed for green water and converts ambient light to white light within a depth range from about 6 to 20 meters.
Item No. 1744
The Spectrum Filter SF -1.5 is for all water colors and converts ambient light to white light within a depth range from about 2 to 15 meters.
Item No. 1745
The Spectrum Filter SF -3.5 B for blue water works best within a depth range of 6 to 20 meter.
Item No. 1672
The BLUE LED module provides a very high output of UV light at 385nm for scientific fluorescence.
Item No. 1746
The Spectrum Filter SF -3.5 G is for green water colors and converts ambient light to white light within a depth range from about 6 to 20 meters.