ESDDI Direct via Amazon has the ESDDI 77mm ND 1000 Filter with Dark Black Aluminum Frame Made of Schott B270 Optical Glass for $8.83 + Free Shipping
Use the code 59LN2I2C
Features:
- 10 stop exposure reduction allows you to photograph with a wider aperture or slower shutter speed than normally required;
- To decrease depth of field by allowing wider apertures to be used, which helps separate subjects from their background;
- Does not affect the coloration of the image and are ideal for pairing with other filters;
- Multicoating process suppresses ghosting, flare, and reflections, and increases light transmission.