Walnut + 2*ND Filter

The Walnut + 2*ND Filter is a professional-grade optical filter kit designed for precision photography and videography applications requiring neutral density control. Professional cinematographers, drone operators, and landscape photographers use this dual ND filter system to manage exposure and reduce shutter speed in bright lighting conditions. This product solves the critical challenge of controlling light transmission while maintaining color accuracy and image quality in high-intensity shooting environments.

Product Overview

The Walnut + 2*ND Filter system comprises a Walnut lens adapter ring paired with two neutral density filters that work by reducing incident light without altering color temperature or introducing unwanted color casts. The ND filters utilize precision multi-coated optical glass with anti-reflective coatings to minimize internal reflections and maintain maximum light transmission efficiency. This dual-filter configuration allows photographers to stack filters for cumulative light reduction from 2 to 4 stops, enabling creative control over depth of field and motion blur in daylight conditions.

The Walnut mounting system features precision-engineered threads with minimal play to ensure secure filter attachment and prevent light leakage at filter edges. Each filter is individually calibrated to maintain optical consistency across the entire aperture range, with coatings specifically designed to resist dust, moisture, and fingerprints. The combination of Walnut's mechanical precision and optical-grade ND filters makes this system ideal for professional work where exposure consistency and image sharpness are non-negotiable requirements.

Key Specifications

Specification	Details
Product Type	Optical Filter Kit with Adapter Ring
Brand	Walnut
Filter Configuration	2x Neutral Density Filters
Light Reduction	ND2 and ND4 (1-stop and 2-stop reduction)
Optical Glass	Multi-coated precision optical glass
Anti-Reflective Coating	Multi-layer anti-reflective treatment
Filter Thread Size	Standard universal mount
Color Shift	Neutral (no color cast)
Origin	Original/Authentic
Warranty	7 days on manufacturing defects
Shipping	1-5 days from Bengaluru
Delivery	7-8 days across India
Support	24/7 via Email and WhatsApp

Key Features

• Dual ND Filter System: Includes ND2 and ND4 filters providing 1-stop and 2-stop light reduction respectively, with stackable capability for cumulative 3-stop reduction
• Multi-Coated Optical Glass: Advanced anti-reflective coatings minimize internal reflections and maximize light transmission efficiency above 99 percent per surface
• Precision Walnut Adapter Ring: Engineered mechanical design with tight tolerances ensures secure filter mounting and eliminates light leakage at filter edges
• Neutral Color Rendering: Maintains accurate white balance and color temperature across the visible spectrum with zero color shift or unwanted tints
• Dust and Moisture Resistant: Hydrophobic and oleophobic surface treatments repel water droplets and fingerprints for easy maintenance and extended optical clarity
• Professional Grade Construction: Precision-ground optical surfaces with flatness tolerance of lambda/4 ensures consistent image quality across the entire frame

Applications and Use Cases

• Cinematic Video Production: Control shutter speed and achieve cinematic motion blur at 24fps or 30fps in daylight conditions without overexposure on professional cinema cameras
• Drone Aerial Photography: Reduce light intensity on drone sensors to maintain proper exposure and prevent blown highlights during daytime aerial missions with fixed aperture cameras
• Landscape Photography: Enable wider apertures and slower shutter speeds for creative depth of field and motion blur effects in flowing water and cloud photography
• Live Event Streaming: Manage dynamic lighting conditions during outdoor events by controlling exposure without requiring constant ISO or aperture adjustments
• Product Photography: Achieve shallow depth of field with studio lighting by reducing light transmission and maintaining proper exposure at wide apertures
• Slow Motion Video: Stack both filters for 3-stop reduction enabling high-speed 60fps or 120fps capture in bright sunlight while maintaining proper exposure

How to Use

Begin by identifying your camera lens thread size and ensuring the Walnut adapter ring is compatible with your specific lens diameter. Clean the lens front element with a soft microfiber cloth to remove dust and debris, then carefully screw the Walnut adapter ring onto the lens threads by hand, ensuring it seats fully without cross-threading. For single ND filter use, screw either the ND2 or ND4 filter into the adapter ring until hand-tight, then check through the viewfinder for even light distribution and absence of vignetting at your shooting aperture.

For stacking both filters to achieve maximum light reduction, first attach the ND2 filter to the adapter ring, then carefully screw the ND4 filter onto the ND2 filter threads, ensuring both filters are seated securely to prevent internal reflections. Check your exposure meter after each filter addition, as stacked filters reduce light by approximately 3 stops total. Always clean filters with lens cleaning solution and microfiber cloth rather than compressed air, and store them in protective cases to prevent dust accumulation and optical surface damage. Remove filters immediately after shooting to prevent moisture condensation on internal surfaces during temperature changes.

Frequently Asked Questions

What is the difference between ND2 and ND4 filters and when should I use each?

ND2 filters reduce light by 1 stop, cutting incident light intensity in half, while ND4 filters reduce light by 2 stops, cutting incident light to one-quarter. Use ND2 for moderate exposure control in slightly overexposed conditions or when you need minimal shutter speed reduction. Use ND4 for stronger light reduction in bright sunlight or when you require significantly slower shutter speeds for motion blur effects. Stacking both filters provides 3-stop reduction for extreme light control in high-intensity outdoor conditions.

Will these ND filters introduce color cast or affect white balance?

No, these multi-coated neutral density filters are specifically engineered to maintain accurate color rendering across the visible spectrum. The multi-layer anti-reflective coatings ensure that light wavelengths are reduced uniformly without preferential absorption of specific color channels. Your camera's white balance system will automatically compensate for the reduced light intensity without requiring manual color correction adjustments during post-processing.

Can I use both ND filters together and what are the stacking limitations?

Yes, both filters are designed for stackable use, providing cumulative 3-stop light reduction when used together. However, stacking two filters can introduce minor internal reflections if not properly sealed, so ensure both filters are hand-tight with no gaps. Avoid stacking more than two filters as this significantly increases internal reflections and potential vignetting at wider apertures. Always clean filter threads before stacking to prevent dust particles from creating optical aberrations.

How do I prevent dust and moisture from accumulating inside stacked filters?

Always attach filters in a clean environment away from dust sources, and ensure both filter threads are completely dry before stacking. Store filters separately in protective cases when not in use, and only stack them immediately before shooting. After shooting in humid conditions, allow filters to gradually warm to room temperature before removing them to prevent internal condensation. Use lens caps on both sides when storing stacked filters to minimize dust exposure.

When will I receive my order?

Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.

What is your return and warranty policy?

We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.

Are bulk discounts available?

Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.

Why Buy from The Engineer Store

• Genuine Products: Sourced directly from authorized distributors with authentication
• Expert Team: Our technical team validates every product before listing
• Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
• Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata
• Payment Options: COD, UPI, credit/debit cards, net banking, EMI available
• Technical Support: 24/7 expert guidance via email and WhatsApp
• Returns: 7-day return policy on manufacturing defects only

Buy Walnut + 2*ND Filter Online in India

Purchase the Walnut + 2*ND Filter online at The Engineer Store, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on Walnut + 2*ND Filter with fast shipping and expert support.

Our team in Bengaluru is available 24/7 to support your journey from product selection to project completion.