[67mm Infrared 290 nm -450 nm]

Size: 2.6 inches (67 mm) / 2.8 inches (72 mm) / 3.1 inches (77 mm) / 3
Usage: Perfect for camera accessories
Features: High quality optical glass, pure optical infrared / color spectrum lens, some spectrum error is less than 3%, most is less than 1.5%.
2.5 level polishing accuracy meets the demands of minimal image quality degradation at less than 600,000 pixels. The inevitable image quality degradation caused by the hotspot of the lens and machine is not included in this range.