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Keldan Spectrum Filters SF -4 B - 72mm

https://www.seatech.co.nz/web/image/product.template/28790/image_1920?unique=df96b71

$ 638.99 638.99 NZD $ 638.99

$ 555.64

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Manufacturer: Keldan
Port Fitting: M72

Stock Code: 1375
Warranty: Limited 2 Years

Spectrum Filter SF -4 B with filter thread

Camera Lens Diameter: 72mm

The Spectrum Filter SF -4 B is designed to compensate for the light absorption of blue water and therefore provides a smooth, well balanced light spectrum to the sensor of your camera. This greatly improves the color rendering of your images and adjust the color coordinates close to daylight for outstanding results with manual white balance.

The Spectrum Filter SF -4 B has a compensation depth of 8m. At this depth the filter makes a perfect compensation of the light absorption of the water column. The camera then sees a daylight spectrum just like shooting at the surface.

The filter works best for blue water within a depth range of 6 to 20 meters. The filter has a damping equivalent to a loss of 4 stops. Normally low noise cameras that allow to shoot at ISO 1600 or higher are requried when using this filter.

IMPORTANT: If you experience problems wit too low light level switch to a lighter filter such as the SF -2 (loss equvalent to 2 stops). The use of a lighter filter is always the better option than using no filter at all!

SF -4 B Filter color coordinates

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