5D3 + 50L + Outer AF points = Much Sadness

Started Dec 1, 2012 | Discussions thread
VivaLasVegas Senior Member • Posts: 1,210
Re: 5D3 + 50L + Outer AF points = Much Sadness

I know this is a week old thread, I am in amazement of how many clueless photographers can't figure out the best AF pt.(center or right/left outer) to use when using a FAST glass(f2, f1.8, f1.4 and f1.2). According to Canon, you can ONLY use the center five DUAL x-types AF sensors for FAST glass(f2, f1.8, f1.4 and f1.2).

See that BLUE BOX with "X", that is the extent that you can point your FAST glass (f2, f1.8, f1.4 and f1.2), you can NOT use the 10 AF pts on the outer right and left sides because those are only sensitive to f2.8-4, they are NOT fast type sensors. However, you can focus and recompose, to an extent, within a few feet.

According to CANON, "When lenses f/2.8 or faster are used, the central five AF points switch from standard cross-type coverage (shown here in yellow) to an extremely high-precision, diagonal cross-type set of line sensors. This conceptual illustration (not a precise graphic) gives an idea of coverage relative to the AF point users see in the viewfinder." The outer right & left 10 AF pts. DOES NOT have this feature.

Post (hide subjects) Posted by
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
(unknown member)
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow