Common application scenarios:
✔ Photography & Film & Video - Reducing the amount of incoming light to achieve long exposure or shallow depth of field effects
✔ Laser Systems - Precise control of laser energy to prevent sensor overloading
✔ Machine Vision & Autonomous Driving - Avoid camera saturation due to bright lights
✔ Scientific research & optical experiments - Ensure precise light intensity regulation

Why are high-quality custom neutral density (ND) filters critical?
Whether for professional photography, laser processing, astronomical observations, or scientific experiments, neutral density (ND) filters play an irreplaceable role. However, not all ND filters are suitable for high-end needs - low-quality filters can lead to color shifts, uneven attenuation, and even affect system performance.

How to choose the right ND filter for you?
1. Determine Optical Density (OD) Requirements
OD value calculation formula: OD = -log10(T), where T is the transmittance (e.g. OD1 = 10% light transmission, OD2 = 1% light transmission).
2. Selection of coating type
Reflective ND filter: suitable for high power laser, reduce the thermal effect.
Absorption ND filters: suitable for general imaging, lower cost
Hybrid ND filters: balancing performance and price.
3. Consider environmental suitability
High temperature, high humidity or strong UV environments may affect filter life, customized coatings can enhance environmental stability