With 1.4x and 2.0x teleconverters, this 200-600mm super-telephoto zoom with full G lens quality and AF performance can reach as far as 840mm or 1200mm, making it ideal for wildlife photography among other things. Excellent resolution is achieved across the zoom range using ED and spherical glass components, while flare and ghosting are reduced by Sony's Nano AR Coating. The bokeh is also quite beautiful.