Tiffen 72mm Neutral Density 0.9 Filter Hoya XEVA-46PROTEC The Cokin 72mm Extension Ring

The Cokin 72mm Extension Ring provides an increase in distance between the filter ring of a lens and a filter holder in order to accommodate retracting lens designs that are common on many zoom lenses

The Canon Wide T-Adapter minimizes this issue with a 25% larger opening

or a lavalier mic for an interview

IOGEAR's 4-Port USB 2

Tiffen 72mm Neutral Density 0.9 Filter Hoya XEVA-46PROTEC The Cokin 72mm Extension Ring0. 9 Solid Neutral Density Filter 8x Filter Factor, +3 Stop Darkens Entire Image Allows Reduced Shutter Speed Allows Wider Aperture ColorCore Technology 72mm Front Filter Threads Plastic Case The Tiffen 72mm Neutral Density 0. 9 Filter is a solid ND filter with an 8x filter factor that provides a 3 stop exposure reduction. Its 0. 9 density creates a darkening of the entire image, allowing you to photograph with a wider aperture or slower shutter speed