I'm an academic with a keen interest in nature photography. Have a Sony A7ii and Canon 60D, and currently using a mix of lenses: Sigma 500mm f/4.5 (Zen); Sigma 400mm f/5.6 APO macro; Carl Zeiss Jena 180mm and 120mm f/2.8 Pentacon 6; Pentax 6x7 135mm f/4 macro; Sigma 105mm f/2.8 macro; Mamiya 80mm f/4 macro; Minolta MC 28mm f/3.5.