Digital Nc ND8 (Neutral Density) Multicoated Glass Filter (62mm) User Manual

Introduction to Neutral Density Filters

A Neutral Density (ND) filter is a photographic filter that reduces the intensity of light entering the camera lens, without altering the color balance or contrast of the scene. The ND8 filter specifically reduces light by 3 stops (0.9 optical density), meaning it allows 1/8th of the light to pass through.

ND filters are essential tools for photographers and videographers, enabling greater control over exposure settings in various lighting conditions. Their primary applications include:

• Enabling Slow Shutter Speeds: To capture motion blur in subjects like waterfalls, clouds, or moving vehicles, especially in bright conditions.
• Decreasing Depth of Field: By allowing wider apertures (smaller f-numbers) to be used in bright light, helping to isolate subjects from their backgrounds.
• Managing High ISO: To reduce the effective ISO of high-speed film or digital sensors, allowing outdoor use in bright situations without overexposure.
• Video Production: For cine and video cameras with fixed shutter speeds, ND filters prevent overexposure in bright scenes such as snow or sand.

Product Features

• Filter Type: Solid Neutral Density (ND8)
• Light Reduction: 3 Stops (0.9 Optical Density)
• Construction: High-quality Schott Glass
• Coating: X Optical Nano (2 Layer) Multi Green Coated for enhanced light transmission (99.2%) and reduced reflections.
• Durability: Scratch, Water, and Oil Resistant properties.
• Design: Slim profile (approximately 6mm thickness) to minimize vignetting on wide-angle lenses.
• Foils: Steinmetz High Efficiency.

Image: The Digital Nc ND8 filter showcasing its water-repelling surface with visible water droplets.

Setup and Installation

1. Identify Lens Thread Size: Ensure your camera lens has a 62mm filter thread. This information is usually printed on the front of your lens or on the lens cap.
2. Clean Lens and Filter: Before installation, gently clean the front element of your lens and both sides of the ND filter using a microfiber cloth specifically designed for optics to remove any dust or smudges.
3. Attach Filter: Carefully align the filter with the lens thread. Rotate the filter clockwise until it is securely fastened. Avoid overtightening to prevent damage to the filter or lens threads.
4. Removal: To remove, rotate the filter counter-clockwise until it detaches from the lens.

Operating Instructions

The Digital Nc ND8 filter reduces light by 3 stops. This means if your correct exposure without the filter is, for example, 1/250s at f/8, with the ND8 filter, you would need to adjust your shutter speed to 1/30s (250 → 125 → 60 → 30) or open your aperture by 3 stops (f/8 → f/5.6 → f/4 → f/2.8) to maintain the same exposure.

• Metering: It is generally recommended to compose and focus your shot without the ND filter first. Once composed and focused, attach the ND filter and then adjust your exposure settings. Many modern cameras can meter through an ND8 filter, but it's good practice to understand the 3-stop reduction.
• Shutter Speed Control: Use the ND8 filter to achieve longer shutter speeds for creative effects like blurring water or clouds. For example, if your desired shutter speed is 1 second, and without the filter, the correct exposure is 1/8 second, the ND8 filter will allow you to achieve a 1-second exposure (1/8s * 8 = 1s).
• Aperture Control: In bright conditions, if you wish to use a wide aperture (e.g., f/2.8) for a shallow depth of field, the ND8 filter will prevent overexposure, allowing you to maintain that wide aperture.

Image: Visual comparison of a scene captured without an ND8 filter (left) and with an ND8 filter (right), illustrating the light reduction.

Image: Another comparison demonstrating the effect of an ND filter on a winter landscape, showing how it allows for different exposure settings.

Maintenance

Proper care and maintenance will extend the life and performance of your ND filter.

• Cleaning: Use a soft, clean microfiber cloth specifically designed for optics. For stubborn smudges or fingerprints, use a small amount of lens cleaning solution applied to the cloth, not directly to the filter.
• Dust Removal: Use a lens blower brush to remove loose dust particles before wiping.
• Storage: Store the filter in its protective case when not in use to prevent scratches and dust accumulation.
• Handling: Always handle the filter by its edges to avoid touching the glass surface.

Troubleshooting

• Vignetting: If dark corners appear in your images, especially with wide-angle lenses, it might be vignetting. This filter features a slim design to minimize this effect. Ensure the filter is correctly seated and not stacked with other thick filters.
• Color Cast: While this ND filter is designed to be color-neutral, some ND filters can introduce a slight color cast. If you notice an unwanted color shift, it can often be corrected during post-processing by adjusting the white balance.
• Soft Images: Ensure your lens is properly focused. Long exposures with ND filters can sometimes make focusing more challenging. Use live view and zoom in to achieve precise focus before attaching the filter, or use manual focus.
• Difficulty Attaching/Removing: Ensure the filter and lens threads are clean and free of debris. Do not force the filter. If it's stuck, try using a rubber filter wrench for gentle leverage.

Specifications

Warranty and Support

This Digital Nc ND8 Multicoated Glass Filter is backed by a 10 Year Warranty, ensuring long-term reliability and performance.

For technical support, warranty claims, or any inquiries regarding your product, please contact Digital Nc customer service through their official website or the retailer where the product was purchased. Please have your model number (ND810DVIVND62) and purchase details ready when contacting support.