Tiffen 67mm Water White Glass IRND 2.1 Filter (7-Stop) 43mm Interior Dimensions: 3 x 9

Interior Dimensions: 3 x 9 x 12" / 7

Tiffen has combined innovative IRND technology with the Soft/FX filters that retain overall image clarity while softening unwanted details

PLUS they subtly remove hard sharpness from modern lenses

The Tiffen 58mm Water White Glass IRND 0

Tiffen 67mm Water White Glass IRND 2.1 Filter (7-Stop) 43mm Interior Dimensions: 3 x 9The Tiffen 67mm Water White Glass IRND 2. 1 Filter is an ND filter with a 128x filter factor that provides a 7 stop exposure reduction. Its 2. 1 density creates a darkening of the entire image, allowing you to photograph with a wider aperture or slower shutter speed than normally required. By increasing your aperture or slowing your exposure time, you are able to control depth of field and convey movement more easily. Neutral density filters are