Samsung NX3000 Canon PowerShot G7 X Nikon Coolpix S6900 Panasonic Lumix ZS40 Canon PowerShot SX700 Sony CyberShot HX400V
Samsung NX3000 Canon PowerShot G7 X Nikon Coolpix S6900 Panasonic Lumix ZS40 Canon PowerShot SX700 Sony CyberShot HX400V
  News Headlines Apple Canon Casio Fujifilm HTC LG Nikon Nokia Olympus Panasonic Pentax Ricoh Rollei Samsung Sony  
Lets Go Digital
 
     
Powered by True
Counted by OneStat.com
Sigma 18-50mm F2.8 EX DC lens introduction
Dennis Hissink : July 20th 2004 - 01:00 CET
Digital Camera Review Test Appareil Photo Numerique Prueba camara digital Digitale Camera Test Dijital Kamera Incelemeleri Digitalkamera Test Digitalkamera
SigmaSigma 18-50mm F2.8 EX DC lens introduction : The characteristics of digital SLR cameras were taken into consideration when designing the lens power layout. The new advanced Sigma 18-50mm F2.8 EX DC 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 coated to get the best colour balance whilst cutting down flare and ghost 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.
Sigma 18-50mm F2.8 EX DC lens introductionSigma 18-50mm lens - Design
The design produces a compact and lightweight, yet robust, construction with an overall length of 84.1mm (3.3in.) and 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 inner focusing system. The non-rotating front lens element makes the lens suitable for using its petal-type lens hood and circular polarizing filters. It is an ideal large aperture standard zoom lens for digital SLR cameras featuring APS-C size image sensor.

Sigma 18-50mm F2.8 EX DC lens specifications
- Focal Length: 18-50mm
- Minimum Aperture: F22
- Lens Construction: 15 Elements in 13 Groups
- Angle of View: 69.3°- 27.9°
- Number of Diaphragm Blades: 7pcs
- Minimum Focusing Distance: 28cm (11in.)
- Maximum Magnification: 1:5
- Filter Size: 67mm
- Lens Hood: Petal-type hood
- Dimensions: Diameter 74.1mm (2.9 in.)X Length 84.1mm (3.3in.)
- Weight: 445gr/15.6ounces

Sigma - EX lenses details
EX series, large aperture zoom lens designed specifically for use with digital SLR cameras. Some of the EX details are: EX lens series denotes excellence of engineering and new technology, Compact and lightweight zoom 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 and Super Multi Layer (SML) coating reduces flare and ghosting from which digital cameras tend to suffer.

   Sigma macro 50mm F2.8 EX DG lens launch
   Sigma macro 105mm F2.8 EX DG lens launch
   Sigma 12-24mm lens wins Award
   Next  Canon introduces new PowerShot A85
   Previous  Canon XL2 - The PRO Three-CCD MiniDV camcorder
   News by brand:Sigma
   News by category:Lens
   News by brand and category:Sigma Lens
   Canon EOS 700D - $599.99
   Nikon D7100 - $775.00
   Nikon D5300 - $569.99
   Sony Alpha 6000 - $669.99
   Canon EOS 70D - $729.00
   Samsung NX300 - $519.00
   Canon PowerShot G1 X Mark II - $645.00
   Sony CyberShot DSC RX100 III - $719.00
   Panasonic Lumix DMC LX7 - $329.99
   Nikon D3300 - $445.00


LetsGoDigital digital camera magazine
Latest Sigma announcements
Sigma 18-35mm F1.8 lens
Mount conversion service
Sigma 18-35mm lens
Sigma lenses awarded by TIPA
Sigma 60mm F2.8 DN price announced
Sigma 19mm and 30mm lenses
Sigma Photo Pro 5.5
New Sigma lenses
Sigma DP1 Merrill
Sigma 18-250mm macro lens
Sigma SD1 Merrill
Sigma Merrill digital cameras
Sigma 50-150mm telephoto lens now available
Sigma SD1 Wood Edition
Sigma 18-200mm lens
 
Twitter LetsGoDigital
Latest news headlines
Luxury smartphone from Gresso
Samsung Galaxy mobile devices based on KNOX platform
Oppo N3 smartphone
Toshiba Ultra HD TVs
Acer Liquid Z500
Acer Iconia Tab 10
Acer Iconia One 8
Acer Iconia Tab 8 W
Motorola Moto G EXT Android smartphone
Lenovo 13-inch Windows tablet
Samsung NX1 Campaign
Samsung Gear S with Swarovski crystals
Panasonic Toughpad FZ-B2 Android tablet
Panasonic Lumix DMC-LX100 test photos
Samsung Galaxy Ace 4 now available
   
CanonCasioFujifilmNikonOlympusHTCSamsungSonyPanasonicNokia
  Accessories Android Apps Camcorders Digital cameras Mobile phones Smartphones Software Tablets   CES CeBIT Gadgets IFA Photokina PMA