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General Photography
Wild Life
Bird photography,lens,subject size,crop and working distance for beginers
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<blockquote data-quote="mikew_RIP" data-source="post: 507545" data-attributes="member: 14174"><p>Just to add to this post,when using a telephoto zoom at full zoom close up they mostly suffer focus breathing,this is the fact the focal length will reduce when at its closest focus distance,unfortunately its mostly guess work unless you can find a review that has carried out this test.</p><p>Some thing like my Sigma 150-600 will be 600mm most of the time but get down to 8 or 10ft and it could reduce drastically,i have read of some long zooms losing 150mm off the long end in this situation.</p></blockquote><p></p>
[QUOTE="mikew_RIP, post: 507545, member: 14174"] Just to add to this post,when using a telephoto zoom at full zoom close up they mostly suffer focus breathing,this is the fact the focal length will reduce when at its closest focus distance,unfortunately its mostly guess work unless you can find a review that has carried out this test. Some thing like my Sigma 150-600 will be 600mm most of the time but get down to 8 or 10ft and it could reduce drastically,i have read of some long zooms losing 150mm off the long end in this situation. [/QUOTE]
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General Photography
Wild Life
Bird photography,lens,subject size,crop and working distance for beginers
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