Sigma 28-105mm F2.8 DG DN Art - Sony E

28-105mm F2.8 DG DN  Art - Sony E

Sigma 28-105mm F2.8 DG DN Art - Sony E
Key Features:

Inner focus system 
Compatible with high-speed autofocus 
HLA (High-response Linear Actuator) 
Compatible with Lens Aberration Correction
* Only cameras that are compatible with the function are allowed to use this function.
Also, the items that can be corrected may vary depending on the camera, or automatic correction may be performed.
* On a camera that allows selecting ON/OFF for lens aberration correction, set the various aberration corrections to
ON (AUTO) from the camera menu. 
Supports DMF and AF+MF 
Compatible with AF assist (for Sony E-mount only) 
Nano Porous Coating 
Super Multi-Layer Coating 
Water- and Oil-Repellent Coating (front element) 
Aperture ring 
Aperture ring click switch 
Aperture ring lock switch 
AFL button (2 locations) * Assignment of functions is limited to supported cameras and assignable functions vary depending on the camera. 
Focus Mode switch 
Zoom Lock switch (Locks at wide end) 
Dust- and Splash-Resistant Structure * The structure is designed to be dust- and splash-resistant, but not waterproof. Be careful not to bring the lens in contact with a large amount of water. Water inside the lens may cause major damage and even render the lens unrepairable. 
Petal-type hood with lock LH878-07 
Compatible with SIGMA USB DOCK UD-11 
Designed to minimize flare and ghosting 
Every single lens undergoes SIGMA's proprietary MTF measuring system 
12-blade rounded diaphragm 
High-precision, durable brass bayonet mount 
Mount Conversion Service available 
"Made in Aizu, Japan" craftsmanship 






Specifications


Lens construction:
18 elements in 13 groups (2 FLD, 1 SLD, 5 aspherical elements)

Angle of view:
75.4-23.3°

Number of diaphragm blades:
12 (rounded diaphragm)

Minimum aperture:
F22

Minimum focusing distance:
40cm / 15.8in.

Maximum magnification ratio:
1:3.1 at f=105mm

Filter size:
Ø82mm

Dimensions


Size D x L :
Ø87.8mm x 159.9mm / Ø3.5in. x 6.2in.

Weight:
990g / 34.9oz

Box Contents 
28-105mm F2.8 DG DN Art Lens 
Case 
Lens Hood LH878-07 
Front Cap LCF-82 III 
Rear Cap LCR II