Tiffen 4 x 4" Neutral Density 1.8 Filter Kopul M3050-BL ��It is best suited to

��It is best suited to studying a large portion of a slide

transferring the weight of the lens away from the mount and onto your tripod or WC baseplate

minimizing the number of faulty discs

Recommended for professional audio in a vented mid-bass or sub-woofer cabinet 18" (457

Tiffen 4 x 4" Neutral Density 1.8 Filter Kopul M3050-BL ��It is best suited to1. 8 Solid Neutral Density Filter Requires +6 Stop Exposure Increase Darkens Entire Image Allows Reduced Shutter Speed Allows Wider Aperture ColorCore Technology Water White Glass The Tiffen 4 x 4" ND 1. 8 Filter is a solid neutral density filter providing a 6 stop exposure reduction. This 1. 8 density creates a darkening of the entire image, allowing you to photograph with a wider aperture or slower shutter speed than normally required. By slowing