Title: Buyer Beware!
Product review: This converter not only work only on Sigma Lenses - BUT CERTAIN SIGMA LENSES!The converter will work in MF mode only, unless noted, on the following APO lenses:Macro 180mm f3.5 EX IF HSM300mm F2.8300mm F2.8 EX HSM (AF)Tele Macro 300mm F4Tele Macro 400 F5.6500mm F4.5500mm f4.5 EX HSM800 F5.6800 F5.6 EX HSM1000mm F850-500mm F4-6.3 EX RF HSM70-200mm F2.8 EX HSM (AF)70-210mm F2.8This has really turned me off from Sigma, as this IMPORTANT information is NOT listed anywhere!
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