Sigma 50-500, f4-6.3 APO Lens
Written by David Barth in August 2003
These are specifications for the Sigma 50-500, f4-6.3 APO Lens.
Hyper Sonic Motor for quick, quiet and responsive autofocus operation, plus full-time manual focusing.
Four special low dispersion elements and seven group zoom system.
Rear focus for faster autofocus and a non-rotating barrel to prevent special filters from turning during
focusing.
These lenses accept optional Sigma 1.4x APO EX and 2x APO EX dedicated teleconverters.
The filter size is 86mm.
The angle of view is 46.8 to 5.0 degrees.
The minimum focus os 39.4 inches (100cm).
The macro rating is 1:5.2.
The dimensions are 3.7 inches (9.4cm) diameter x 8.5 inches (21.6cm) length.
The weight is 67oz (1900g).