<span style="font-size: medium;"]<span style="font-family: Arial;"]<span style="color: #000000;"]I am thinking about trying a Kenko PRO 300 3.0x between a 300mm f2.8 and a 5D mark ii.
<span style="font-family: Arial; color: #000000; font-size: medium;"]
<span style="color: #000099;"]<span style="font-family: Arial; color: #000000; font-size: medium;"]Has anyone used a Kenko PRO 300 3.0x? Any information would be help as to the IQ.
