Aurora-Aperture 37mm PowerXND 2000 Variable Neutral Density 1.2 to 3.3 Filter (4 to 11 Stops) Arturia With black A1 from FiiO

With black A1 from FiiO is a portable headphone amplifier with volume control

It allows simultaneous hook-up of external microphones and headphones for streamlined interfacing with your camera

3% reflectivity and does not affect the overall image quality while helping reduce dust

Bus powered via USB 3

Aurora-Aperture 37mm PowerXND 2000 Variable Neutral Density 1.2 to 3.3 Filter (4 to 11 Stops) Arturia With black A1 from FiiOThe Aurora Aperture 37mm PowerXND 2000 Variable Neutral Density 1. 2 to 3. 3 Filter is a solid variable neutral density filter that is designed to mount onto lenses with 37mm front filter threads and provides an exposure reduction of 4 to 11 stops. The 1. 2 to 3. 3 density creates a darkening of the entire image, allowing you to photograph with a wider aperture or slower shutter speed than normally required. The degree of density is easily controlled