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Drwho1300
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03-08-2024
03-08-2024
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EOS 90D & Rebel T7 won't go below F9 with 100-400mm & 2x extender III
03-08-2024
Using a 100-400mm in combination with 2x extender III on Rebel T7 or 90D. Once the extender is installed I cannot drop below F9 but AF won't work past F8. Any suggestions?
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