LEE Filters 100 x 150mm 0.3 Hard-Edge Graduated Neutral Density Filter Brand_PolarPro 5 V - AAA battery

5 V - AAA battery

Therefore the quality does not drop although it is wireless

Wireless synchronization of transmitter parameter from receiver

and you can adjust the color temperature precisely by turning the kelvin wheel

LEE Filters 100 x 150mm 0.3 Hard-Edge Graduated Neutral Density Filter Brand_PolarPro 5 V - AAA batteryItem description The LEE Filters range of Neutral Density (ND) Graduated Filters enable the photographer to selectively adjust exposure across the frame without affecting colour balance. They are almost an essential in modern landscape photography on both digital and film cameras and come in a range of strengths denoting the light stopping power of the filter.