Release Issued by Sigma:
18-50mm F2.8 EX DC – Four Thirds fitting
EX series, large aperture zoom lens designed specifically for use with digital SLR cameras is now available in the Four Thirds fitting.
EX lens series denotes excellence of engineering and new technology.
Compact and lightweight zoom design despite large F2.8 aperture.
Excellent correction for various types of aberration provided by one SLD (Special Low Dispersion) glass element and two aspherical lenses.
Super Multi Layer (SML) coating reduces flare and ghosting from which digital cameras tend to suffer
The characteristics of digital SLR cameras were taken into consideration when designing the lens power layout. The new advanced lens design corrects various aberrations. This lens provides the utmost correction against lateral chromatic aberration which is a serious problem for digital SLR cameras.
This lens is specially coated to get the best colour balance whilst cutting down flare and ghosting, caused by reflections from the digital image sensor and lens. It has excellent correction for vignetting and superior peripheral brightness is ensured.
A Special Low Dispersion (SLD) lens and two aspherical lens elements provide excellent correction for all types of aberrations. The design produces a compact and lightweight, yet robust, construction with an overall length of 84.1mm (3.3in.), maximum diameter of 74.1mm (2.9in.) and weight of 445g (15.6oz).
This lens has a minimum focusing distance of 28cm (11in.). It is equipped with an inner focusing system. The non-rotating front lens element makes the lens suitable for using its petal-type lens hood and circular polarizing filters.
Website
www.sigma-imaging-uk.com
Specifications
|
Focal Length (4/3 Format) |
36-100mm
|
| Minimum Aperture |
F22
|
| Lens Construction |
15 Elements in 13 Groups
|
| Angle of View (4/3 Format) |
59°- 24°
|
| Number of Diaphragm Blades |
7pcs
|
| Minimum Focusing Distance |
28cm (11”)
|
| Maximum Magnification |
1:5
|
| Filter Size |
67mm
|
| Lens Hood |
Petal-type hood
|
| Dimensions |
Diameter 74.1mm (2.9”)X Length 84.1mm (3.3”)
|
| Weight |
445gr/15.6ounces
|
| SRP |
£369.99
|
The appearance and specifications of the product are subject to change for improvement without notice.
* Vignetting will occur if the lens is used with digital cameras with image sensors larger than APS-C size or 35mm SLR cameras.
