With the PRO 300 1.4x, DGX full AF operation is possible with camera lenses having a maximum aperture of F4 or brighter.
The PRO 300 can be used with telephoto zoom lenses as well as prime lenses.

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 3.2 inch
Height : 2.9 inch
Length : 3.2 inch

Item Weight: 0.16 ounce (View shipping rates and policies)
Shipping Weight: 7.2 ounce (View shipping rates and policies)

ASIN : B002C6QC3E