CANON USAさんのインスタグラム写真 - (CANON USAInstagram)「Photo by #CanonExplorerOfLight @georgelepp | “Among Central Oregon’s abundant wildlife subjects, river otters can be quite challenging to photograph. They’re shy, constantly in motion, and able to disappear underwater in a flash. To give myself the best odds for success, I put together a setup designed for speed and reach: the Canon EOS 90D camera (10 fps and 1.6x crop factor), EF 600mm f/4L III lens, both the EF 1.4x III and EF 2x III extenders, and a sturdy tripod. When I spotted an otter eating a catfish among the cattails on the opposite bank, I used the EF 600mm lens with the EF 2x III extender (1920mm on the 90D) to get a full-frame capture at 1/250 sec, f/11, and ISO 1600. Later, I watched a group of three otters playing on an ice-covered portion of the small lake. From a closer vantage point, I opted for the EF 600mm III lens with the 1.4x III extender and stopped the action at 1/2000 sec. @ f/8 and ISO 800. It was an ‘otterly’ fantastic day!”」2月27日 22時17分