Minolta Maxxum AF 100-200mm f/4.5 TELE lens for Minolta Maxxum Dynax SLR/DSLR cameras and Sony Alpha A-mount DSLR cameras elements/group: 	 8/7; aperture blades: 7; minimum focus distance: 1900 mm; filter rotate when focusing: Yes; filter rotate when zooming: No max. magnification: 	 1/8.3; focus design: 	 front; min. length: 	 94.5 mm; max. length: 	 132 mm; filter diameter: 	 49, front mm; hood: 	 clip-on, round max. aperture: 	 4.5; min. aperture: 	 22; focal range: 	 100 - 200 mm