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AF Compatibility
Check the maximum aperture (F Value) of your prime lens to ensure that the TELE CONVERTER
will operate in AF mode. If the lens is slower than the required F value (as specied below), the
lens/ TELE CONVERTER combination will operate in the MF mode.
For Nikon:
This converter can be used with AF lens and AF-S lens both.
For Canon:
This converter can not be attached to FF-S lens of CANON EOS.
For SONY-Alpha:
For SSM lens (built in motor lens) of SONY-a, use in MF mode.
For PENTAX:
For SDM lens (built in motor lens) of PENTAX, use in MF mode.