SIGMA 500mm f/4 DG OS HSM Sports Lens for F - Manual (Page 7)

In addition to AF/MF, MO (Manual Override) is incorporated as one of the options of the focus mode
switch. By setting it to the MO position, it switches to manual focus by rotating the focus ring even
during continuous AF. With AF position, standard full-time manual focus is available. Using the
optional
SIGMA USB DOCK, it is possible to adjust the MO position’s sensitivity to switch to manual focus.
Quieter and Faster “Optimized AF”
The HSM (Hyper Sonic Motor) ensures high speed and quiet AF. With the
further enhanced AF algorithm compared to previous models, continuous
AF (AF-C) improves the focusing efficiency.
4. SIGMA Tele Converters, mount converters, and USB DOCK make possible
customization and flexible adjustment for convenience or a specific purpose.
AF is effective even when Tele Converters are attached
Tele Converters that are newly designed to match the new lens line-ups
(optional) can be attached. The addition of SIGMA’s TELE CONVERTER
TC-1401 or TELE CONVERTER TC-2001 produces a AF 700mm F5.6
hyper-telephoto lens or a AF 1000mm F8 hyper-telephoto lens respectively.
* When shooting subjects with low contrast or luminosity value, focus may not be spot on the subject.
Compatible with Mount Converter MC-11
Mount Converter MC-11 allows you to use your SIGMA SA mount and SIGMA EOS mount
(Canon-compatible) interchangeable lenses with the Sony E-mount camera body. Owners of
multiple camera systems can now get even more out of their valuable lens assets.