Sigma 300-800mm F5.6 EX IF HSM
Launched September 2002

20045028EXDG

50mm F2.8 EX DG Macro
From life-size close up to infinity, superior image quality for digital SLR cameras is achieved across the range.

  • Optimized image quality for Digital SLR cameras.
  • Floating Internal Focusing (FIF) system minimizes the aberration in entire focusing range.
  • Super Multi Layer (SML) coating reduces the ghost caused by reflections from the surface of digital image sensors.
  • Minimum aperture of F/45 provides greater depth of field (F/45 for Sigma, Canon and Konica Minolta mounts and F/32 for Nikon and Pentax mounts).
  • A screw-in hood for convenient use of circular polarizing filters

Sigma Corporation is pleased to announce the launch of the new MACRO 50mm F2.8 EX DG lens.

MACRO 50mm F2.8 EX DG incorporates the very latest optical technology and is an ideal standard lens for digital SLR cameras.

The new advanced lens design corrects various aberrations. This macro lens is specially coated to get the best color balance whilst cutting down ghost caused by reflections from the digital image sensor. This lens provides the utmost correction against lateral chromatic aberration which is a serious problem for digital SLR cameras. The new MACRO 50mm F2.8 EX DG incorporates a “Floating Internal Focusing” (FIF) system which enables this lens to photograph objects precisely not only at life-size reproduction but also at infinity. The lens has a minimum focusing distance of 18.9cm (7.4”) and is capable of true macro photography with a maximum magnification of 1:1. Experience the enjoyment of real life-size macro photography. This lens is equipped with a “Focus Limiter Switch” that limits the autofocus range, allowing the camera to focus more quickly. This lens has a minimum aperture of F/45 (for Sigma, Canon and Konica Minolta mounts) which produces a tremendous depth of field. A screw-in hood is included, for convenient use of circular polarizing filters. It is also possible to attach a φ72mm filter in front of the lens hood.

This macro lens has an equivalent field of view of 85mm on a digital SLR camera (when used with the SD-10).

Specifications
Construction 10 Elements in 9 Groups
Focal Length 50mm
Maximum Aperture ƒ2.8
Minimum Aperture ƒ32

(ƒ45 on Sigma/Canon/Minolta)
Field of View 46.8°
Minimum Focus Distance 18.9cm
Number of blades 7
Maximum Magnification 1:!
Zooming System N/A
Filter Size 55mm
Diameter 71.4mm
Length 64mm
Weight 315g
SRP at launch: £229.99
Available Mounts: Sigma AF, Canon AF, Nikon AF, Minolta AF, Pentax