RexGig wrote:
PalaDolphin's excellent visual tutorial illustrates something very important, that many seem to misunderstand.
Where's the 'like' button?
RexGig wrote:
I rarely let the camera decide where to AF. Unless shooting a very active subjeDSct, I use one AF point, and either move the AF point to my preferred place within the frame, or focus and recompose, depending upon the depth of field.
This is one of the lessons they taught us in the DSLR 1 class held at my store, National Camera Exchange
http://natcam.com/. My T4i has only 9 AF points, where the EOS 7D is 19; some cameras have as many as 51 AF points. But, unless you're shooting a moving subject, KISS (Keep It Simple Silly) and just use the center AF point, keep the shutter button down halfway and recompose.
This discussion prompted me to revisit my manual (pg. 99). Cross-type focusing is the fastest; it uses vertical and horizontal lines. Certain lenses only allow cross-type focusing on the center AF point, so it's good to read up on your lens. Or you could be lazy like me and get into a habit of using the center AF point and recompose.
The EOS 7D is supposedly a lot better:
http://www.learn.usa.canon.com/resources/articles/2011/whats_news_eos7d_article.shtmlQuote:
The actual AF system in the EOS 7D is entirely new to the Canon line, with an AF sensor having 19 cross-type AF points. Each and every point, including those located farthest from the center, is a standard-precision cross-type sensor, which can be used with any lens (or lens plus extender combination) with effective maximum apertures of f/5.6 or faster. Like the EOS 60D and 50D before that, the center AF point also has a separate, diagonal pair of high-precision line sensors, which provide even greater precision; these are automatically used with lenses f/2.8 or faster.
@MTK: So, have you tried viewing the out-of-focus photos in ZoomBrowser EX with the
Show Auto Focus Points on?
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