Hoya PRO ND 1000 Neutral Density 10 Stop Filter (67mm)

The PRO ND 1000 Neutral Density 10 Stop Filter is an extremely dark neutral density filter that contains a Wide-Angle Lens Compatible Ultra Thin Frame with Glass Mounted with High Pressure Press Technology. It has factor 1000 filter and converts to 10 stop reduction available in sizes 49mm, 52mm, 55mm, 58mm, 62mm, 67mm, 72mm, 77mm, and 82mm. It is built in 8-layer Anti-Reflective Multi-Coating made to be robust in any occassion. This lens is Water & Oil Repellent, scratch and stain resistant with a Chemically Enhanced Optical Glass making it 4x Stronger. The filter motion of this lens is blurred making moving objects virtually invisible. The shutter speed can be as slow as 16 seconds.

Product Features in Detail

Hardened Glass (UV/Protector)
Hardened optical glass that has 4 times the breaking strength in ANSI standardized testing (ANSI Z80.3 : 2001) where a steel balls of varying size and weight were dropped from a height of 50 inches onto the glass.

High Transparency Polarizing Film
The polarizing film is the same as that used in the latest high definition LCD TV screens. It has 25% higher light transmission than standard polarizing film used in current photographic filters. 

Hardened 8 Layer Waterproof Multi-Coating that Is Scratch & Stain Resistant
Newly developed industry leading 8-layer multi-coating yields an average light transmission rate of 99.35% between 400 and 700nm (visible spectrum). These coatings greatly reduce reflections off the surface of the glass allowing you to capture more light in your photos. 

Hard Coating
As with all HOYA multi-coatings, HD HMC is applied in a furnace at high heat, bonding the coating to the surface of the glass. This process is called "hard coating" and it is far more durable than other coating techniques. The chemistry of the top layer is formulated not just to be more durable but to be resistant to oil stains. This means that finger prints and other oils are much easier to remove.

A multi-purpose fine-weather filter
Absorbs the ultraviolet rays which often make outdoor photographs hazy and indistinct. A multi-purpose, fine-weather filter for color as well as black and white films. Also serves as a permanent lens protector.

Protect your valued lenses
This is the ultimate in clear filters. It will not affect the color balance or performance of your lenses in the slightest. However, constant use will protect your valued lenses from expensive front element damage which could be caused by dirt, knocks or scratches. A cracked filter costs nothing in comparison to a cracked lens.

Digital Multi-Coated
Digital multi-coated filters greatly reduce the appearance of lens flare and ghosting caused by reflections.

UV Protected Case
Filter cases are UV protected to further lengthen the life of filters.