F stops

Started Mar 29, 2014 | Questions thread
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mabellucyhays Forum Member • Posts: 50
F stops

If I am using a Canon 18-200 or 70 -300 lens then I assume I cannot set f stops?

i was to trying to take pics in tv mode and the fstop kept flashing. I assume the only options with these lens was to change the shutter speed or ISO ???

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Canon EOS 7D Canon EF-S 18-200mm f/3.5-5.6 IS Canon EF 70-300mm f/4-5.6 IS USM +2 more
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