ND Filter Density Filter ND2-400 Camera Lens Filter for ND2-ND400 Camera Lens

Combination Frame: reducer frame is a combination frame, rotating frame can drive the lens to do relative rotation, so as to achieve the effect of ND value, rotating frame we can see the lens from light to dark change. Recommended Range of Use: The filter is the use of 2 CPL superposition principle to achieve the purpose of adjustment, the recommended range is ND2-ND400, high density segments such as ND1000,ND2000 can not be done. Scale Familiarization: When the filter is used, it is necessary to be familiar with the lower scale range, on the lens, facing the or a brighter place, start from min to maximum, pay attention to the color change of the viewfinder, and write down the scale of this position when the uneven dimming appears at the beginning. Item Type: ND filter Material: Optical Glass, Aluminum Alloy