Went on a chilly -7 degrees celcius hike today. I am currently unhappy with the results of my new 70-200 F4L I have not yet got a sharp image. Today was very gloomy and cloudy but I bumped it up to 400 ISO and was shooting around 400 to 650/sec. Might have to bring her back I guess. Here are 3 images from today. 1. 2. 3.