NiSi 100x100mm Natural Night Filter (Light Pollution Filter) Standard Zoom Lens the GVM-800D supports master/slave mode

the GVM-800D supports master/slave mode for synchronized control over multiple lights

single-bolt conversion: Switches between left and right handle configuration by removing one bolt

Slim Fit: Available as a short-sleeve or long-sleeve shirt

we have you covered with 2x included Rubber O-Rings to help shim and secure whatever you’re mounting

NiSi 100x100mm Natural Night Filter (Light Pollution Filter) Standard Zoom Lens the GVM-800D supports master/slave modeThe NiSi 100x100mm Natural Night Filter is NiSi's first filter built exclusively for night photography, blocking the most common wavelengths of light pollution such as mercury vapor, sodium, and low CRI streetlights. Blocks Common Light Pollution Wavelengths: Reduces the glow that keeps a camera from seeing the night sky properly and affecting night images. Precision Annealed Optical Glass: Surface is finely ground and polished for sharpness with