Question about Quantaray 100-300mm F4.5-6.7 Zoom lens for Minolta
My Sony A100 works fine with this lens until I put the focal length doubler on it then will only work with the lens fully retracted.
I believe a tele will not work with auto focus when the lens is f4 or larger at the smallest end.
Posted on Jun 24, 2008
How does it stop working? Do you mean it doesn't auto focus anymore?
Many longer focal length lenses wont auto focus with 2x teleconverters on them.
Posted on Dec 07, 2007
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