49mm Soft Circular Graduated ND Filter with 0.55-1.5mm Lens Thickness and ND2-64 Density Range
Price:
$6.22 - $20.18 / Piece
MOQ:
100
Delivery Time:
15-30 Working day
Brand:
OEM/ODM
Product Description
BST Round Soft Graduated ND Filter Overview
Professional 49mm soft circular graduated neutral density filter featuring precise optical density control and superior build quality for photography applications.
Key Features
- Ideal ratio of ND area, transition area, and clear area for natural gradient effects
- Double-sided SGND coating with near-zero color deviation
- Accurate ND value stops for precise exposure control
- Available in standard sizes from Φ37mm to Φ150mm
- Customizable ND values, frame materials, and surface treatments
Technical Specifications
| Parameter | Specifications |
|---|---|
| Glass Material | AGC / Germany SCHOTT / Corning / other designated brands |
| Filter Lens Thickness | 0.55mm / 0.7mm / 0.8mm / 1.1mm / 1.3mm / 1.5mm / Others |
| Filter Lens Resolution | HD Resolution |
| Coating | Double-sided SGND+AR (Anti-reflection coating), Double-sided AF (Waterproof, oil proof and scratch proof Coating) |
| Frame Material | Aluminum / Copper |
| Frame Interface | Thread / Magnetic |
| Frame Thickness | 4.5mm / 4.75mm / 5.5mm / 5.9mm / 7.0mm / 7.5mm (Customizable) |
| ND Specifications | Standard: ND2/4/8/16/32/64, Custom ND values available |
| Common Product Sizes | Φ37/39/40.5/43/46/49/52/55/58/62/67/72/77/82/86/95/105/150mm |
ND Filter Ratings Reference
| F-stop Reduction | Optical Density | ND Number |
|---|---|---|
| 0 | 0.0 | 0 |
| 1 | 0.3 | ND 2 |
| 2 | 0.6 | ND 4 |
| 3 | 0.9 | ND 8 |
| 4 | 1.2 | ND 16 |
| 5 | 1.5 | ND 32 |
| 6 | 1.8 | ND 64 |
Product Quality & Manufacturing
BST maintains strict quality control with advanced manufacturing facilities including thousand-level clean rooms and comprehensive R&D capabilities.
Customization & Packaging
We offer comprehensive customization services including packaging design, cleaning cloths, instruction manuals, and various accessories tailored to customer requirements.
Company Profile
Bright Shadow Technology Co. Ltd (BST) specializes in optical product development and manufacturing with over 15 years of industry experience, offering ODM and OEM services for camera filters, drone lenses, and sunglasses glass.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Bright Shadow Technology Ltd.
Location
NO.2 Dongxin Road,Dongjiang Hi-Tech Park,Huizhou(516255),Guangdong,China
Contact Person
Hathaway Peng