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Message: <blockquote data-quote="christineredgate" data-source="post: 1230865" data-attributes="member: 2356">Yes ,it is easy to handhold,esp if you swing the tripod holder around.Not a heavy lens.Re the 100-400 or the 400F5.6 .If one has already used these 2 lenses ,then you could have a prob deciding which is the better lens.  If you do not have the 100-400,then the price of the Sigma is good.   Best idea is to go to your local dealer and check ,using the Sigma.This lens has good reviews,but for Canon users who have used the 400F5.6 and the 100-400 then you may decide to stay with Canon.</blockquote>