Imaging Storm Photography

Photography with a twist of science from David Bradley

Tag Archives: 18200mm

Swan on Sigma DC 18-200mm 1:3.5-6.3

Rather pleased with the autofocusing speed, crispness and image clarity of this new lens now proudly sitting flush on my Canon 20D. It replaced a Canon EFS IS lens 17-85mm that I bashed in Barcelona and that finally died a couple of weeks ago. The Sigma has a much wider range of focal lengths and [...]