# Tiffen Combination Color Conversion 85B/ND Glass Filter (Series 9, 1-Stop)

- **Precio:** PEN 1,109.00 (antes PEN 1,760.32)
- **Disponibilidad:** En stock
- **Marca:** TIFFEN
- **Modelo / MPN:** S985BN3
- **Comprar:** [Abrir ficha en la tienda](https://prosmart.com.pe/product/prosmart-bhp-55163-REG)
- **Datos JSON:** [API de detalle](https://prosmart.com.pe/api/v1/product/details/prosmart-bhp-55163-REG)

## Características

- 0.3 Optical Density
- Converts Tungsten to Daylight
- Allows Use of Fast Film in Bright Light

## Especificaciones

- **Filter Type:** Solid ND with 85B Color Conversion
- **Exposure Reduction:** 1-Stop
- **Size:** Series 9 Rear Filter Thread
- **Front Accessory Thread / Bayonet:** No
- **Coating:** No
- **Filter Thickness:** 0.1" / 2.5 mm 0.3" / 8 mm (Ring/Frame)
- **Filter Material:** Glass
- **Ring Material:** Aluminum
- **Package Weight:** 0.24 lb

## Descripción

This 1-stop, Series 9
Tiffen Combination Color Conversion 85B/ND Glass Filter
will produce natural colors when shooting with tungsten film outdoors. Without any filtration, using tungsten film in daylight will produce a bluish cast in a photograph.
Neutral density filters have several uses and offer the possibility of achieving otherwise unachievable results. Neutral density filters appear gray and reduce the amount of light reaching the film. They have no effect on color balance. Often it is necessary or desirable to balance the light intensity in one part of a scene with another. This is especially true in situations where you don't have total light control, as in bright contrast-filled landscapes. Exposing for the foreground will produce a washed-out, overexposed sky while exposing for the sky will leave the foreground dark and underexposed. This filter enables cloud detail to be kept correctly exposed in the picture.
85 Series Conversion Chart
An 85 decreases the color temperature from 5500 to 3400K

An 85A decreases the color temperature from 5500 to 3100K

An 85B decreases the color temperature from 5500 to 3200K

An 85C decreases the color temperature from 5500 to 3800K
Neutral Density Factors
ND 0.3 (exposure adjustment = 1 stop, reduces ISO 1/2)

ND 0.6 (exposure adjustment = 2 stops, reduces ISO 1/4)

ND 0.9 (exposure adjustment = 3 stops, reduces ISO 1/8)

ND 1.2 (exposure adjustment = 4 stops, reduces ISO 1/16)