Auto focus speed

Started Jan 6, 2011 | Discussions thread
Shop cameras & lenses ▾
ForumParentFirstPreviousNext
Flat view
mf999
mf999 Contributing Member • Posts: 716
Auto focus speed

When autofocusing if the lens aperture is set on f9 and the lens is a prime f4 does the speed of auto focus on the camera happen based on f4 opening or on the setting of f9?
Also does a prime f2.8 lens auto focus faster than a prime f4?

 mf999's gear list:mf999's gear list
Canon EOS 7D Mark II Canon EF 70-300mm f/4-5.6L IS USM Canon EF-S 18-135mm f/3.5-5.6 IS STM Canon EF 100-400mm F4.5-5.6L IS II
ForumParentFirstPreviousNext
Flat view
ForumParentFirstPreviousNext
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow