This is only for classical camera Which hasn''t a Half mirror at the light-measuring function or aren''t equipped with an AF Function.
If you use or digital camera, it could causes photographic photometry and ranging error.
The effect is the same as Circular PL filters. I you use the digital camera, we recommend Circular type.

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 3.2 inch
Height : 0.4 inch
Length : 3.9 inch

Item Weight: 2.08 ounce (View shipping rates and policies)
Shipping Weight: 3.2 ounce (View shipping rates and policies)

ASIN : B00350KEXK