Sigma 50-500mm f/4-6.3 DG lens

APO 50-500mm f/4-6.3 EX DG HSM^[1]
Maker	Sigma
Technical data
Type	Telephoto zoom
Focal length	50–500 mm
Crop factor	1.0
Aperture (max/min)	f/4-6.3-f/22
Close focus distance	100–300 cm
Max. magnification	1:5.2
Diaphragm blades	9
Construction	20 elements in 16 groups
Features
Short back focus	No
Ultrasonic motor	Yes
Lens-based stabilization	No
Macro capable	No
Physical
Max. length	218.5 mm
Diameter	95 mm
Weight	1840 g
Filter diameter	86 mm
Retail info
MSRP	$1059.00 USD

The Sigma 50-500mm f/4-6.3 EX DG HSM is a super-telephoto zoom lens produced by Sigma Corporation. It contains four SLD (Special Low Dispersion) glass elements to provide correction for chromatic aberration. It is aimed at advanced consumers.

Versions

The lens was originally announced by Sigma in 2000 at that year's Photo Expo and released in 2001. The lens has a variable minimum focusing distance and varifocal design, which was remedied partially through autofocusing technology.^[2]

Over the years, it has gone through several iterations and improvements. This includes the 2006 DG model which has upgraded coatings optimized for digital cameras. In 2010, Sigma added built-in optical stabilization (OS) to the lens.^[2]

Release Feature	AF 50-500mm F4-6.3 EX APO RF HSM^[3] (2001)	APO 50-500mm F4-6.3 EX DG HSM^[4] (2006)	50-500mm F4.5-6.3 APO DG OS HSM^[5] (2010)
Focal length	50~500 mm
Aperture	f/4.0~6.3 [to f/22~36]		f/4.5~6.3
Construction	20e/16g (4 SLD)		22e/16g
Min. focus dist.	100, 300 cm (39.4, 118.1 in) [for f=50, 500 mm]		50–180 cm (19.7–70.9 in)
Max. mag.	1:5.2 (at f=200 mm)		1:3.1
Filter (mm)	86		95
Dims. (Φ×L)	94 mm × 216 mm (3.7 in × 8.5 in)	95 mm × 218.5 mm (3.74 in × 8.60 in)	104.4 mm × 219 mm (4.11 in × 8.62 in)
Wgt.	1,850 g (65 oz)	1,840 g (65 oz)	1,970 g (69 oz)
Mounts	Sigma SA, Minolta α, Pentax K(AF), Nikon (AF-D), Canon EF	Sigma SA, Minolta α, Pentax K(AF), Nikon (AF-D), Canon EF, 4/3	Sigma SA, Minolta α, Pentax K(AF), Nikon (AF-D), Canon EF