Main specification ?Filter dimension : 110 X 90 x 8mm ?View size : 96 X 42mm ?Weight : 495g ?UV/IR protection : Up DIN13 ?Shade number : DIN 4/9-13 ?Time form light to dark : 1/10000 s ?Time form dark to light : 0.1-0.9s Stepless Adjustable ?Sensitivity : Stepless Adjustable ?Power : Solar cells ?Operation temperature : -5C皛 55C?(23 F?~ 131 F?