Sunnylife ฟิลเตอร์ ND4 สำหรับ DJI Spark

Designed for DJI SPARK Ultra thin & ultra light & high definition & high transmittance, Low reflectivity High quality optical glass,stable optical properties,high optical homogeneity Molded frame with accurate size, ultra
-thin and no dark corners Perfect tool for shutter shoot . Do not interfere with the gimbal calibration.