KELDAN SPECTRUM FILTER
 
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.
Improves color rendering with manual white balance
 
2 stops loss filter can be used for any water color
 
4 stops loss filter available for blue water and green water
 
Spectrum Filter SF -2 with filter thread 55mm to 82mm
 Item No. 1437, 1372, 1371, 1370, 1369, 1368, 1709
Spectrum Filter SF -2
Spectrum Filter SF -2 with filter thread 55mm to 82mm
 Item No. 1437, 1372, 1371, 1370, 1369, 1368, 1709
For deeper depth we recommend to use either SF -4 B (for blue water) or SF -4 G (for green water)
 
SF -2 Filter color coordinates
Available sizes
 
Camera Lens Diameter
Item Number
55 mm thread
No. 1709
58 mm thread
No. 1437
62 mm thread
No. 1372
67 mm thread
No. 1371
72 mm thread
No. 1370
77 mm thread
No. 1369
82 mm thread
No. 1368