
Neewer ND2.1 Square Filter 4x5.65 Inch 7-Stop
Master Light Control with NEEWER ND2.1 Square FilterThe NEEWER ND2.1 (7 Stops) Square ND Filter is an essential tool for photographers and videographers. Crafted with precision, this 4"x5.65" filter provides exceptional neutral density, reduces light intake, and balances image exposure, making it...
*Price sourced from Amazon.com. Last updated:Jul 15, 2026.Price and availability are subject to change.
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Overview
Master Light Control with NEEWER ND2.1 Square Filter
The NEEWER ND2.1 (7 Stops) Square ND Filter is an essential tool for photographers and videographers. Crafted with precision, this 4"x5.65" filter provides exceptional neutral density, reduces light intake, and balances image exposure, making it perfect for achieving cinematic effects in various shooting conditions. Built to work with Tilta & SmallRig matte boxes.
- Filter Type: Square ND Filter
- ND Rating: ND2.1 (7 Stops)
- Dimensions: 4" x 5.65"
- Coating: Dual Sided 30 Multi Nano Coated
- Compatibility: NEEWER Matte Box, Tilta, SmallRig
Key Features
【Matte Box ND Filter】 Designed for NEEWER matte box, also compatible with Tilta compatible with SmallRig mini matte box and filter frame. The 4"x5.65" sqaure filter enables better control over shutter speed and aperture, avoids overexposure and balances image exposure, perfect for photography and videography under bright sunlight with motion blur effects
【HD Optical Glass with No Color Cast】 HD optical glass delivers high clarity and ensures no color balance affected. Instead of threading onto lenses, the square ND filter is mounted on a matte box and suits lenses of various focal lengths, perfect for 8K and 4K video recording
【ND2.1 Filter with 0.78% light transmittance】 The ND2.1 neutral density filter blocks 7 Stops of light from entering into camera lens and features 0.78% light transmittance. The number 2.1 stands for the filter’s optical density. Optical density grows and light transmittance lowers as the number goes up
【Dual Sided 30 Layered Coatings】 30 layers of coatings on both sides make the filter scratch resistant, water repellent, oil proof and fingerprint resistant. Use the included cleaning wipes to clean the filter with ease
【Super Slim & Lightweight】 0.16"/4mm thick and weighs only 5.12 oz/147g. This ultra slim and lightweight filter adds barely noticeable weight to your filming setup when mounted on. Store it in the carrying case for safekeeping and easy carrying
Specifications
Pros & Cons
👍 Pros
- Designed for NEEWER matte boxes, also compatible with Tilta and SmallRig mini matte boxes and filter frames.
- Allows for precise control over shutter speed and aperture, crucial for creative photography and videography.
- Effectively avoids overexposure and balances image exposure, especially beneficial under bright sunlight.
- Ideal for creating motion blur effects in both photography and videography under intense light conditions.
- Constructed with HD optical glass, ensuring high clarity and maintaining accurate color balance without cast.
- Mounts on a matte box, making it suitable for lenses of various focal lengths rather than specific threading.
- Supports high-resolution video recording, compatible with both 8K and 4K formats for professional output.
- The ND2.1 filter blocks 7 stops of light, providing a low 0.78% light transmittance for significant light reduction.
- Features dual-sided 30-layered coatings that make it scratch resistant, water repellent, oil proof, and fingerprint resistant.
- Includes cleaning wipes for easy maintenance, helping to keep the filter pristine and clear for optimal use.
- Super slim at 0.16" (4mm) thick and lightweight at 5.12 oz (147g), minimizing added bulk to camera setups.
- Comes with an included carrying case, ensuring secure storage and convenient transportation.
👎 Cons
- This filter is specifically designed for matte boxes, which means it cannot be directly screwed onto camera lenses.
- Compatibility is restricted to NEEWER, Tilta, and SmallRig mini matte box systems, limiting its use with other setups.
- The ND2.1 filter blocks a significant 7 stops of light, which might be excessive for moderately bright conditions or situations requiring less light reduction.
- The 30-layered coatings, while protective, might require specific care when cleaning to avoid damage.
- No information is provided about the material of the filter's frame, only the optical glass.
- The description states "perfect for photography and videography under bright sunlight," suggesting its primary use case and potentially less versatility for lower light scenarios.
- Users need to understand the concept of "optical density" (2.1) to effectively choose and utilize this filter.