It is natural for the image quality to deteriorate when using a teleconverter since the lens becomes darker due to aperture loss: one F-stop (with 1.4X) or two F-stop (with 2X).
Depending on the shooting conditions, the Auto Focus may hunt. In that case, please use MF (manual) mode.
This teleconverter is not designed for digital use. We do not guarantee its performance when used on Digital SLR cameras.
When using the teleconveter, it maybe difficult to achieve focus using AF because the depth of field becomes shallow. If this occurs, focus manually.For use with Canon SLR cameras
If used with a variable F-number zoom lens (e.g. 2.8-3.5), AF may not operate at the telephoto side. If this occurs, focus manually

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 3.2 inch
Height : 2.5 inch
Length : 3.3 inch

Item Weight: 0 ounce (View shipping rates and policies)
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ASIN : B0007YZLJ4