KEY FEATURES
- E-Mount Lens/Full-Frame Format
- Aperture Range: f/2.8 to f/22
- Two FLD Elements, Two SLD Elements
- Low Dispersion and Aspherical Elements
- Super Multi-Layer Coating
- 1:1 Magnification, 10.2" Min. Focus
- Coreless DC AF Motor, Manual Override
- Weather-Sealed, Brass Bayonet Mount
- Rounded 9-Blade Diaphragm
SIGMA 70MM F/2.8 DG MACRO ART OVERVIEW
Optimized for notable image clarity at close working
distances, the Sony E-mount 70mm f/2.8 DG Macro Art Lens from Sigma is a true 1:1,
life-size macro lens well-suited for close-up and macro subjects. As a member
of the esteemed Art series of lenses, this short-telephoto prime is also
distinguished by its sophisticated optical design that makes use of two FLD
elements, two SLD elements, one anomalous partial dispersion/high refractive
index element, and two aspherical elements to limit both chromatic and
spherical aberrations for high clarity, sharpness, and color accuracy. A Super
Multi-Layer Coating also enhances image quality by suppressing lens flare and
ghosting for improved contrast and color fidelity in strong lighting
conditions. Additionally, a rounded nine-blade diaphragm contributes to a
pleasing bokeh quality.
- Benefitting the imaging assets is a coreless DC motor that
offers quick and accurate autofocus performance along with full-time manual
focus override. The physical design utilizes Thermally Stable Composite
material for durability in a wide range of environments, and a brass bayonet
mount also offers rigidity and mounting precision.
- As part of the Art line within Sigma's Global Vision series,
this lens is designed to achieve truly notable optical performance and is
ideally suited for creative and artistic applications.
- Short-telephoto prime, this lens is designed for full-frame
Sony E-mount mirrorless cameras, however can also be used with APS-C models
where it provides a 105mm equivalent focal length.
- Two F Low Dispersion (FLD) elements, two Special Low
Dispersion (SLD) elements, and one anomalous partial dispersion/high refractive
index element are featured in the optical design, and help to reduce color
fringing and chromatic aberrations for improved clarity and color accuracy.
- Two aspherical elements are used to help limit distortion and
spherical aberrations and also contribute to greater overall sharpness and
accurate rendering.
- True macro design affords a life-size 1:1 maximum
magnification along with a 10.2" minimum focusing distance to suit working
with close-up subjects.
- A Super Multi-Layer Coating has been applied to lens elements
in order to minimize lens flare and ghosting and contribute to producing
contrast-rich and color-neutral imagery, even in backlit conditions.
- Nine-blade rounded diaphragm contributes to a smooth and
pleasing bokeh quality.
- Coreless DC motor is used for quick and accurate autofocus
performance. Additionally, an updated focusing algorithm, full-time manual
focus override, large angle of rotation, and focus-by-wire system enable
increased and controllable focus adjustment.
- The lens is constructed using a Thermally Stable Composite
(TSC) material, along with traditional metals, for greater precision and use in
wide temperature variations.
- The bayonet mount is constructed from brass for ensured
accuracy and durability. Additionally, rubber sealing is incorporated in the
mount design to render it dust- and splash-resistant.
- Compatible with optional EM-140 DG Macro Ring Flash when used
in conjunction with the separate 65mm Macro Flash Adapter for even lighting as
close working distances.
- Compatible with optional TC-1401 and TC-2001 Teleconverters
to extend the effective focal length of the lens while retaining autofocus
functionality.
SIGMA 70MM F/2.8 DG MACRO ART SPECS
Focal Length
|
70mm
|
Maximum Aperture
|
f/2.8
|
Minimum Aperture
|
f/22
|
Lens Mount
|
Sony E
|
Lens Format
Coverage
|
Full-Frame
|
Angle of View
|
34.3°
|
Minimum Focus
Distance
|
10.16" / 25.8
cm
|
Maximum
Magnification
|
1x
|
Macro Reproduction
Ratio
|
1:1
|
Optical Design
|
13 Elements in 10
Groups
|
Diaphragm Blades
|
9, Rounded
|
Focus Type
|
Autofocus
|
Image
Stabilization
|
No
|
Filter Size
|
49 mm (Front)
|
Dimensions (ø x L)
|
2.79 x 4.17"
/ 70.8 x 105.8 mm
|
Length at Maximum
Extension
|
5.18" /
131.45 mm
|
|