http://regex.info/blog/2010-04-21/1498 Not a photo blog. A personal blog with photos. Wed, 23 May 2012 20:38:13 +0000 hourly 1 http://wordpress.org/?v=3.3.2 http://regex.info/blog/2010-04-21/1498#comment-38813 icassell Wed, 21 Apr 2010 22:14:29 +0000 http://regex.info/blog/2010-04-21/1498#comment-38813 I've been holding my breath waiting for reviews of this beast and appreciate your series. There is no way I can afford a Canon 500mm f/4 and I want a lens to use with my 7D for birding. How accurate and fast have you found the AF? Have you tried any birds-in-flight? <span class='jfriedl'>Any attempt by me of BIF would fail, and it wouldn't be the lens to blame. AF seems okay, but I haven't tested it a lot, but even at f/5.6, depth of field at 500mm is pretty thin, so I'm not sure you'd want to use AF anyway. —Jeffrey</span> I’ve been holding my breath waiting for reviews of this beast and appreciate your series. There is no way I can afford a Canon 500mm f/4 and I want a lens to use with my 7D for birding. How accurate and fast have you found the AF? Have you tried any birds-in-flight?
Any attempt by me of BIF would fail, and it wouldn’t be the lens to blame. AF seems okay, but I haven’t tested it a lot, but even at f/5.6, depth of field at 500mm is pretty thin, so I’m not sure you’d want to use AF anyway. —Jeffrey

]]> http://regex.info/blog/2010-04-21/1498#comment-38795 nils Tue, 20 Apr 2010 15:28:59 +0000 http://regex.info/blog/2010-04-21/1498#comment-38795 If I get up on the roof of my building and wave, maybe can you see me from your roof with that lens. If I get up on the roof of my building and wave, maybe can you see me from your roof with that lens.

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