SPORTS 120-300mm F2.8 DG OS HSM

DISCONTINUED

sports

120-300mm F2.8 DG OS HSM

Available mounts

Large aperture with great zoom range
Includes technology such as a HSM & OS
Accessories include: Lens Hood (LH1220-01) Carrying Case.

SPECIFICATIONS

LENS CONSTRUCTION / MTF

TECHNOLOGY

Camera Type DSLR

Corresponding Mount Canon EF-mount, Nikon F, Sigma SA

Sensor Size Full Frame [DG]

Lens Construction 23 Elements in 18 Groups

Angle of view 20.4º - 8.2º

Number of diaphragm blades 9 (Ümardatud Diafragma)

Minimum aperture F22

Minimum focusing distance 150 cm - 250 cm

Maximum magnification ratio 1:8.1

Filter size φ105mm

Dimensions (diameter x length) ⌀ 124.4 mm x 29 mm

Weight (g) 3,390g / 119.6oz.

Edition number S013

The three-digit code on the surface of the lens is to indicate the year the lens was first released. (Since it is different from the year of manufacture, the release year and edition number may not match depending on the mount.)

Supplied Accessories Pouch
Lens Hood LH725-01
Front Cap LCF-67 IV
Rear Cap LCR III

EAN Canon E/EF: 085126137540
Nikon F: 085126137557
Sigma SA: 085126137564

* The appearance, specifications, and the like of the product are subject to change for improvement without notice. DISCONTINUED MODEL

Lens construction

FLD glass SLD glass
MTF Chart

There are two types of MTF chart. One considers the diffraction quality of light, which is called "Diffraction MTF", and the other, "Geometrical MTF" does not.
The quality of light appears in the diffracted light, and becomes more distinct as the F value gets bigger, resulting in lower image quality. Also, diffracted light exists at every aperture, which is why Sigma has been releasing Diffraction MTF data from the beginning since it is very close to the actual image data.
The advantage of using "Geometric MTF" data is that it is easy to measure and calculate since it does not consider the diffraction quality of light, yet it tends to show higher values in the graph than actual images.
The readings at 10 lines per millimeter measure the lens's contrast ability (red lines), repeating fine parallel lines spaced at 30 lines per millimeter measure the lens's sharpness ability (green lines), when the aperture is wide open.
Fine repeating line sets are created parallel to a diagonal line running from corner to corner of the frame, are called Sagittal lines (S) and sets of repeating lines vertical to these lines are drawn, called Meridional (M) line sets.

*The MTF chart gives the result at the wide-open aperture.
Spatial frequency

S: Sagittal Line

M: Meridional Line
10lp/mm
30lp/mm
Diffraction MTF 120mm
$Diffraction MTF 120mm$
Geometrical MTF 300mm