The True Quality of Top-Shelf Glass – A Birder’s Perspective » Mallard in Canyon

EF 300mm f/2.8 L IS + EF 2x TC III - 600mm - 1/640s @ f/8 - ISO 800

EF 300mm f/2.8 L IS + EF 2x TC III – 600mm – 1/640s @ f/8 – ISO 800

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