Neutral Density filter reducing light by 2 stops. Commonly used for portrait work in bright sunlight to maintain wider apertures.
Definition
The ND.6 is a neutral density filter with 2 stops of light reduction (64% transmission). Reduces light incidence by a factor of 4, corresponding to a density value of 0.6.
Practical Application
Use in the following lighting situations:
- Aperture Setting: Allows for wider apertures in daylight for shallower depth of field
- Shutter Speed: Extends exposure times for motion blur effects
- Overexposure: Prevents clipping from bright light sources
- Sensor Protection: Reduces light incidence on sensitive sensors
Technical Details
Specifications and characteristics:
- Transmission: 25% (2 stops reduction)
- Neutral gray filter without color shift
- Available as screw-on, matte box, or clip-on filter
- Can be combined with other ND filters for stronger reduction
Practical Tips
- Perform exposure metering after filter application
- When combining multiple ND filters: add density values
- Cleaning only with lint-free cloths and cleaning fluid
- Store in a filter pouch to protect against scratches
Professional Standards
Standard ND filters in professional kits for:
- Consistent exposure in changing lighting conditions
- Quick adjustments without aperture or ISO changes
- Cost savings compared to elaborate lighting setups
- Adherence to the 180° shutter rule in daylight
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