The material is Japan''s AGC glass,the total thickness of the frame:4mm
The material of frame: Aluminum alloy,applicable to any diameter is 52mm DSLR cameras.
ND Glass Uses Deposition Process Technology The Zeta ND filter is created using a deposition process which produces superiorcolor and imaging.
High End Constructed - Ultra Thin Frame The glass of this lens is precision machined and attached using Retainer Ring Mount Technology giving this filter an unsurpassed durability. An ultra thin frame also makes it wide-angle lens compatible.
Sophisticated Filter Case Sleek design and durable, a protective and easy to use polycarbonate resin compact case comes with the filter

Technical Details

Product Details

Package Dimensions
Width : 2.9 inch
Height : 0.6 inch
Length : 4.3 inch

Shipping Weight: 0.32 ounce (View shipping rates and policies)

ASIN : B012R2FYZY