Sigma 300–800mm f/5.6 EX DG HSM lens

The Sigma 300 – 800 mm lens is a professional-level supertelephoto zoom lens made by Sigma Corporation since 2005 till 2019 for use with digital SLRs. It is a modification of the non-DG model Sigma 300-800mm F5.6 EX APO IF HSM was being in production in 2003-2005.

300–800 mm f/5.6 EX DG APO HSM

Maker	Sigma
Technical data
Type	Zoom
Focus drive	Ultrasonic motor
Focal length	300 – 800 mm
Aperture (max/min)	f/5.6 – f/32
Close focus distance	600 cm (236.2 in)
Max. magnification	1:6.9
Diaphragm blades	9
Construction	18 elements in 16 groups
Features
Lens-based stabilization	No
Macro capable	No
Application	professional super telephoto zoom for digital SLRs
Physical
Max. length	541.5 mm
Diameter	156.5 mm
Weight	5870 g (207 oz)
Filter diameter	46 mm (rear drop-in)
Accessories
Lens hood	LH1571-02
Angle of view
Diagonal	8.2° – 3.1°
Retail info
MSRP	$8,000 (in USA, since April 2013) USD

The first model Sigma 300-800mm F5.6 EX APO IF HSM (manufacturer code 594) was announced on 4 October 2002 and first delivered on 29 January 2003. The construction of the lens has 18 optical elements in 16 groups including 2 ELD (extra-low dispersion) elements. Versions for Sigma SA, Canon EF and Nikon AF-S mounts were available.

On 14 February 2005, the DG variants of several Sigma lenses have been announced, including the 300-800mm F5.6 EX DG APO HSM lens (manufacturer code 595). Since 29 April 2005, the lens was available for customers, replacing the previous model. The new lens has a better coating designed to reduce flare from digital SLRs sensors.

The Nikon version lost an aperture ring so the lens can be equated to Nikon G lenses in this aspect. In addition to the Sigma, Canon and Nikon versions, the Four Thirds version was announced on 26 September 2006 and produced for several years, providing the impressive focal range of 600–1600mm. The FT version is longer (549.4mm) and heavier (5915g) than others (data for Sigma SA mount is shown).