PhotographyBLOG


Newsletter Competition

LATEST REVIEWS

Sony Cyber-shot T77
Sony Cyber-shot T700
Sanyo HD2000
Autodesk Stitcher
Panasonic DMC-FS25
Portraiture 2
Olympus E-30
Sony A900
Olympus SP-565 UZ
Genuine Fractals 6

All Reviews
Best Digital Cameras

LATEST COMMENTS

Zeiss Education Programme
Date: Jun 30, 2016
Name: Dissertation Wriitng Services

Firmware Updates for Multiple Coolpix Cameras
Date: Jun 30, 2016
Name: Research paper writing service

Online EOS Training Academy
Date: Jun 30, 2016
Name: chaitukits

SIRUI Launch New Products
Date: Jun 30, 2016
Name: cinemaboxapp

Voigtländer Bessa III Pricing Confirmed
Date: Jun 30, 2016
Name: dark souls 3

Nikon UK Launch New Battery Grip Promotion
Date: Jun 30, 2016
Name: Kios Pengobatan Herbal

Rankin to Judge New Photography Collaboration
Date: Jun 29, 2016
Name: free money paypal

Sony A77 II Firmware Update 2.00
Date: Jun 29, 2016
Name: Jerry Sanders

Kodak EasyShare D830 & D1030
Date: Jun 29, 2016
Name: Carol Ring

Firmware Updates for Multiple Coolpix Cameras
Date: Jun 28, 2016
Name: Essay Writing Service

Latest Threads

MOST COMMENTS

Panasonic DMC-LX1 Announced (796)

Kodak Easyshare Z981 (514)

Panasonic Lumix DMC-LX2 (481)

Ricoh Caplio R3 Announced (422)

Panasonic DMC-FZ30 Announced (361)

Impossible B&W SX-70 Hard Color (293)

Fujifilm Finepix E550 Review (264)

Sony DSC-H5 and Sony DSC-H2 (242)

Canon G7 (227)

Samsung S800, Samsung S600 and Samsung S500 (209)


ARCHIVES

June 2016
May 2016
April 2016
March 2016
February 2016
January 2016
December 2015
November 2015
October 2015
September 2015
August 2015
July 2015

Latest News Stories

AFFILIATES

Digital Photography Blog
Digital Wedding Forum
Everyday Eye
Mark Goldstein
Mobile Phones
ShutterPoint
 

Sigma 18-50mm F2.8 EX DC for Four Thirds

Sigma 18-50mm F2.8 EX DC LensPMA 2006: The Sigma 18-50mm F2.8 EX DC lens for Four Thirds is announced at PMA today.

Sigma UK Press Release

EX series, large aperture zoom lens designed specifically for use with digital SLR cameras is now available in the Four Thirds fitting.

The Sigma Corporation is pleased to announce the new 18-50mm 2.8 EX DC for the Four Thirds fitting. 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.

- 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

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. 

THE 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.

Published: Sunday, February 26, 2006

Compare Prices

Support PhotographyBLOG: Buy this product from one of our affiliate retailers (US first/red, UK second/blue):


Reader Comments

Add Your Comments

Please keep your comments relevant to this article. All spam postings will be removed. To create a live link, simply type the URL (including http://) or email address. You can include up to 2 URLs. Please use TinyURL or a similar service for longer URLs. Line breaks and paragraphs are automatically converted - you don't need to use <p> or <br> tags.

Name (required):

Email (required, not displayed):

Website (optional):

Enter your comments:

Remember me

Email me when someone replies to this comment



 



Pixmania Logo

Discover a wide range of digital cameras at low prices. Buy cheap cameras from Sony and Canon. Share your photos thanks to digital photo frames.


Varnam Logo

Varnam offers digital photo frame with built-in memory & battery.




© Copyright 2003-2008 Photo 360 Limited
Best Viewed at 1024x768 Screen Resolution