Sigma 28-70 F2.8 EX Zoom Lens, 28-70mm Focal length, F2.8 Maximum aperture, Rotary Zooming system, 75.4°- 34.3° Angle of view, 9 Number of blades, F32 Minimum aperture, F32 Minimum aperture, 15.7" Minimum focusing distance, 1:4.2 Maximum magnificatio

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Electronics > Cameras > Lens > Sigma 28-70 F2.8 EX Zoom Lens, 28-70mm Focal length, F2.8 Maximum aperture, Rotary Zooming system, 75.4°- 34.3° Angle of view, 9 Number of blades, F32 Minimum aperture, F32 Minimum aperture, 15.7" Minimum focusing distance, 1:4.2 Maximum magnification, 77mm Filter size, 15 elements in 12 groups Lens construction (2870F28EX 28 70 F 2.8 EX 28-70 F2.8-EX 2870F28EX)

Sigma 28-70 F2.8 EX Zoom Lens, 28-70mm Focal length, F2.8 Maximum aperture, Rotary Zooming system, 75.4°- 34.3° Angle of view, 9 Number of blades, F32 Minimum aperture, F32 Minimum aperture, 15.7" Minimum focusing distance, 1:4.2 Maximum magnification, 77mm Filter size, 15 elements in 12 groups Lens construction (2870F28EX 28 70 F 2.8 EX 28-70 F2.8-EX 2870F28EX)

SKU: 2870F28EX

Brand: Sigma

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Sigma 28-70 F2.8 EX Zoom Lens, 28-70mm Focal length, F2.8 Maximum aperture, Rotary Zooming system, 75.4°- 34.3° Angle of view, 9 Number of blades, F32 Minimum aperture, F32 Minimum aperture, 15.7" Minimum focusing distance, 1:4.2 Maximum magnification, 77mm Filter size, 15 elements in 12 groups Lens construction, Focus ring doesn't rotate, yet still provides adequate torque for manual operation, Lead and arsenic-free ecological glass.

General Information
Manufacturer	Sigma
Manufacturer Part Number	28-70 F2.8 EX
Product Line	Camera Lens
Product Name	28-70 F2.8 EX Zoom Lens
Marketing Information
SIGMA 28-70mm f2.8 EX Aspherical DF is one of several EX-Series lenses. It combines a fast, constant f2.8 maximum aperture with a popular range of focal lengths from 28mm wide-angle to 70mm medium range telephoto with an upgraded design. It is the world's smallest 28-70mm f2.8 zoom lens. The lens also incorporates a dual focus mechanism. It is easy to hold the lens, since the focusing ring does not rotate during auto-focusing and yet provides adequate focusing torque of the focusing ring during manual focusing of the lens. Helical focus system of the lens eliminates front lens rotation, thus allowing the use of a Perfect Hood and easy to use polarizing filters. It incorporates 2 aspherical lenses in the front and rear lens groups, provides high performance and superior optical quality. Minimum focusing distance is 40cm/15.7inches at all focal lengths. Sigma 28-70mm f2.8 EX Aspherical DF is equipped with a Perfect Hood to prevent extraneous harmful light for image quality. The lens materials used in this new lens are lead and arsenic free ecological glass.
Features
New dual focus mechanism version. Focus ring doesn't rotate, yet still provides adequate torque for manual operation. Fast, constant maximum aperture of F2.8, covers most popular focal range. 2 aspherical elements help maintain high optical performance. World's smallest zoom lens in this category. Helical focusing to eliminate front lens barrel rotation during focusing, for added convenience when using polarizing filters. Lead and arsenic-free ecological glass. Filter size 77mm.
Specifications
Focal length	28-70mm
Maximum aperture	F2.8
Lens construction	15 elements in 12 groups
Zooming system	Rotary
Angle of view	75.4°- 34.3°
Number of blades	9
Minimum aperture	F32
Minimum focusing distance	15.7" (40cm)
Maximum magnification	1:4.2
Filter size	77mm
External finish	EX finish
Lens hood	Perfect hood with bayonet mount
Dimensions	3.3 in. (dia) x 4.0 in. (length) 83.6mm (dia) x 101.2mm (length)
Weight	22.7 oz (645g)
Mount	Sigma SA, Minolta, Nikon (D), Pentax, Canon

A-20041127-1019-110-L

M-20070407-1019-107-E

*This item is BRAND NEW - not refurbished. It comes with all manufacturer supplied accessories, and full manufacturer's USA warranty.

*** DISCLAIMERS: Some of the information presented here may have been supplied by 3rd Party Content Suppliers, so we are not responsible for Data or Image errors. The listing of this product on our website does not guarantee that this product is available at all times. Feel free to call or email us to check stock before placing your order. ***

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