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Lenses are:1. EF 100-400mm 4.5-5.6 L IS2. EF 24-105mm 1:4 L IS USM3. EF 16-35mm 1:4 L IS USMExpense & weight concerns. Don’t want to carry 3, unless I have to.thnx for help, input in advance.WildlifeNut  
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