Scenes from the Cal-Sag Channel Posted on October 8, 2010September 25, 2018 by david.kennedy Andy Plauck pilots the FWS electro-shocking boat through the Cal-Sag Channel, Chicago, Ill. | Canon 5D Mark II and 85mm f/1.2L II lens | Exposed 1/6400 sec. @ f/1.2, ISO 100. Warehouse and crane, Cal-Sag Channel, Chicago, Ill. | Canon 5D Mark II and 85mm f/1.2L II lens | Exposed 1/3200 sec. @ f/2, ISO 100. Cormorants fly off as smog hovers over the Sears Tower and the Chicago skyline seen from Lake Calumet on the Cal-Sag Channel. | Canon 1D Mark III and 70-200mm f/4L IS lens @ 135mm | Exposed 1/1250 sec. @ f/4, ISO 100. Share this:PrintTweet