Shorten the close focus distance of your lens
The effect increases with the diopter number and the focal length of the lens
Single coated One layer per side

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 3.7 inch
Height : 0.87 inch
Length : 3.7 inch

Item Weight: 0 ounce (View shipping rates and policies)
Shipping Weight: 0 ounce (View shipping rates and policies)

ASIN : B00017LSC6