17-70mm F2.8-4 DC MACRO OS HSM（Contemporary） | Contemporary
17-70mm F2.8-4 DC MACRO OS HSM（Contemporary） | Contemporary
- Lens Construction
-
FLD glass
SLD glass
ASPHERICAL LENS
- MTF Chart
-
| Spatial frequency | S:Sagittal Line | M:Meridional Line |
|---|---|---|
| 10lp/mm |
|
|
| 30lp/mm |
|
|
The MTF chart gives the result at the wide-open aperture
- Distortion
-
- Vignetting
-
F2.8
F5.6
F11
F4.0
F8.0
F16
Specifications
- Lens Construction
-
16 elements in 14 groups
- Angle of View
-
79.7° - 22.9°
- Number of Diaphragm Blades
-
7 (Rounded diaphragm)
- Minimum Aperture
-
F22
- Minimum Focusing Distance
-
22cm / 8.7in.
- Maximum Magnification Ratio
-
1：2.8
- Filter Size
-
φ72mm
- Dimensions (Diameter × Length)
-
φ79mm × 82mm / φ3.1in. × 3.2in.
*The length of a lens is measured from the filter surface to its mount.
- Weight
-
465g
- Edition Number
-
C013
About Edition Number
- Supplied Accessories
-
・LENS HOOD LH780-03
・FRONT CAP LCF-72mm III
- Mount / Product Barcode
-
SIGMA SA-mount：00-85126-88456-7 (discontinued)
Canon EF mount：00-85126-88454-3 (discontinued)
Nikon F mount：00-85126-88455-0 (discontinued)
Sony A-mount：00-85126-88462-8 (discontinued)
Pentax mount：00-85126-88461-1 (discontinued)
Technology
Others
Lens construction: 16 elements in 14 groups, with 2 FLD glass and 1 SLD glass and 3 aspherical lenses
Compatible with SIGMA USB DOCK UD-01 (sold separately)
Designed to minimize flare and ghosting
7-blade rounded diaphragm
High-precision, durable brass bayonet mount
All figures calculated by SIGMA SA mount.
* Vignetting will occur if the lens is used with image sensor larger than APS-C size or 35mm SLR, and APS Film SLR cameras. To find the 35 mm camera equivalent focal length, multiply the DC lens focal length by the “crop factor” (digital multiplier) of 1.5, 1.6 or 1.7, depending on the brand of DSLR camera on which the lens will be used. To find which DC lens is equivalent to a full frame lens, divide the focal length of the full frame lens by the same crop factor.
* Sony A and Pentax mounts are not incorporated with OS function.
* AF will not function with Pentax ist* series and K100D DSLR cameras that do not support HSM.