Reviews and Problems with Canon EF 400mm f/2.8L IS USM
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Canon EF 400 F2.8 IS USM Lens
22 June 2012
Summary: I read up on this lens before buying it and I would suggest doing that if you are thinking about picking one up. First it is a large piece of glass and it is heavy which I knew going into this purchase. It isn't the type of lens you want to pack around due to the weight. I find it better to have it set up on the tripod to move around and hopefully not to far. I found that there is a learning curve going to this size of lens from what I had been using.