Comments on: Canon Large Center Zone AF. What are those tiny sand balls? https://www.birdsasart-blog.com/baa/2017/02/16/canon-center-zone-af/ The blog of bird photographer Arthur Morris Fri, 17 Feb 2017 10:17:38 +0000 hourly 1 https://wordpress.org/?v=6.8.3 By: Richard Poire https://www.birdsasart-blog.com/baa/2017/02/16/canon-center-zone-af/comment-page-1/#comment-1743371 Fri, 17 Feb 2017 10:17:38 +0000 http://www.birdsasart-blog.com/?p=46196#comment-1743371 Gotta go with fiddler crab balls.
They roll the detritus they eat from into these balls.
Have seen them on Cape Cod Mass.

]]> By: Arthur Morris/BIRDS AS ART https://www.birdsasart-blog.com/baa/2017/02/16/canon-center-zone-af/comment-page-1/#comment-1743348 Thu, 16 Feb 2017 20:21:36 +0000 http://www.birdsasart-blog.com/?p=46196#comment-1743348 In reply to Larry Brown.

I like Large Zone especially when for verticals with tall birds and for horizontals when you need to focus on one side of the frame or the other. I do not use Zone a lot. Perhaps we both need to experiment with it more.

Understand that Expand properly placed will always give you more accurately focused images across the board; Zone and Large Zone give you more speed and flexibility in exchange at times for possibly less accurate focus …

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