http://www.adidap.com/2006/08/29/which-canon-ef-70-200-l-to-buy-the-answer/ your daily dose of photography Thu, 28 Aug 2008 23:31:10 +0000 http://wordpress.org/?v=2.1 http://www.adidap.com/2006/08/29/which-canon-ef-70-200-l-to-buy-the-answer/#comment-6 chris Wed, 30 Aug 2006 10:46:51 +0000 http://www.adidap.com/2006/08/29/which-canon-ef-70-200-l-to-buy-the-answer/#comment-6 hey one other thing which seems often to be overlooked: if you don't have a 1-series camera, you need a minimum of f/2.8 in order to take advantage of the maximum autofocus precision sensor capabilities. so, if you have a 20d or a 5d and you get an f/4 lens, you are giving up the ability to achieve best focus. in many cases this won't have a detrimental effect--the other focus sensors are pretty good too--but if precision autofocus is important to you, and especially if you use this lens for subjects closer than about 15', you may well see an advantage to the faster (bigger, more expensive) lens. hey one other thing which seems often to be overlooked: if you don’t have a 1-series camera, you need a minimum of f/2.8 in order to take advantage of the maximum autofocus precision sensor capabilities. so, if you have a 20d or a 5d and you get an f/4 lens, you are giving up the ability to achieve best focus. in many cases this won’t have a detrimental effect–the other focus sensors are pretty good too–but if precision autofocus is important to you, and especially if you use this lens for subjects closer than about 15′, you may well see an advantage to the faster (bigger, more expensive) lens.

]]> http://www.adidap.com/2006/08/29/which-canon-ef-70-200-l-to-buy-the-answer/#comment-8 Antoine Khater Thu, 31 Aug 2006 10:54:30 +0000 http://www.adidap.com/2006/08/29/which-canon-ef-70-200-l-to-buy-the-answer/#comment-8 Another good read about the subject can be found at <a href="http://forums.dpreview.com/forums/read.asp?forum=1019&message=19791128" target=blank rel="nofollow"> http://forums.dpreview.com/forums/read.asp?forum=1019&message=19791128</a> actually it is a thread debating this summary Hope this helps Another good read about the subject can be found at

http://forums.dpreview.com/forums/read.asp?forum=1019&message=19791128 actually it is a thread debating this summary Hope this helps

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