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Three new lenses from Sigma

By dpreview staff on Mar 16, 2004 at 11:32 GMT

Sigma today announced three new lenses, an all new 18 - 125 mm F3.5 - F5.6 DC (designed specifically for digital SLR's) as well as putting some official specifications behind their recently announced 4/3 System lenses, the 18 - 50 mm F3.5 - F5.6 4/3 DC and the 55 - 200 mm F4.0 - F5.6 4/3 DC. The 18 - 125 mm will be of interest to all digital SLR owners as it offers a small, lightweight 7x zoom capability. The 18 - 50 mm and 55 - 200 mm 4/3 DC lenses should also be of interest to Olympus E-1 owners but in my opinion hint more towards a more 'affordable' 4/3 System digital SLR coming from Olympus in the not to distant future.

Equivalent 'Field of View' for digital SLR's

  • 18 - 125 mm on a 1.5x (APS size) digital SLR: 27 - 187.5 mm equiv.
  • 18 - 50 mm on a 4/3 digital SLR: 36 - 100 mm equiv.
  • 55 - 200 mm on a 4/3 digital SLR: 110 - 400 mm equiv.

Press releases:

18-125mm F3.5-5.6 DC

Exclusively Designed for use with digital SLR cameras and has 6.9 times high magnification zoom ratio

Sigma Corporation is pleased to announce the launch of the new 18-125mm F3.5-5.6 DC.
This zoom lens was exclusively designed for use with digital Single-Lens Reflex (SLR) cameras and has 6.9 times high magnification zoom ratio. Image circle is designed to match the size of the image sensor of digital SLR cameras.

A Special Low Dispersion (SLD) and two pieces of aspherical glass elements produce high level of optical performance through the entire zoom range and also this has resulted in a compact, lightweight lens.

This lens has a minimum focusing distance of 50cm (19.6") at all focal lengths and equipped with inner focusing system. Since the front of the lens does not rotate, "Petal-type hood" and a circular polarizing filter can be easily attached and used. This lens is also equipped with Zoom Lock Switch that eliminates "Zoom Creep".

18-125mm F3.5-5.6 DC specifications

Focal Length 18 - 125 mm
Minimum Aperture F22
Lens Construction 15 Elements in 14 Groups
Angle of View 69.3°- 11.4°
Number of Diaphragm Blades 7 pcs
Minimum Focusing Distance 50cm (19.6")
Maximum Magnification 1:5.3
Filter Size 62 mm
Lens Hood Petal Hood
Mounts (AF) Sigma, Canon, Nikon (D), Pentax
Dimensions (dia x len) 70 mm (2.7") x 77.7 mm (3")
Weight To be determined

18-50mm F3.5-5.6 DC

Compact-Lightweight zoom lens for the "Four Thirds System (4/3 System)" Digital SLR Camera System standard.

Sigma Corporation is pleased to announce the launch of the new 18-50mm F3.5-5.6 DC? for the Four Thirds Digital SLR Camera System. This zoom lens was exclusively designed to suit the characteristics of digital SLR cameras. The image circle was designed to match the size of the image sensors of digital SLR cameras, and this produced a compact and lightweight lens. The use of aspherical lenses provides correction for various aberrations throughout the entire zoom range and produce high level of optical performance. 18-50mm F3.5-5.6 DC lens has a minimum focusing distance of 25cm (9.8") at all focal lengths and is capable of macro photography with a maximum magnification ratio of 1:3.5.

* If Olympus E-1 digital cameras is used, the angle of view will be equal to 36-100mm focal length.

18-50mm F3.5-5.6 DC specifications

Focal Length 18 - 50 mm
Minimum Aperture F22
Lens Construction 8 Elements in 8 Groups
Angle of View 62° - 24.4°
Number of Diaphragm Blades 7 pcs
Minimum Focusing Distance 25 cm (9.8")
Maximum Magnification 1:3.5
Filter Size 58 mm
Lens Hood Bayonet Hood
Mount 4/3 system
Dimensions (dia x len) 67.5 mm (2.6") x 62 mm (2.5")
Weight 250 g (8.7 oz)

55-200mm F4-5.6 DC

High-performance Telephoto Zoom Lens, designed for "Four Thirds System (4/3 System)" Digital SLR Camera System standard.

Sigma Corporation is pleased to announce the launch of the new 55-200mm F4-5.6 DC for the Four Thirds Digital SLR Camera System.
This compact telephoto zoom lens was exclusively designed for use with digital SLR cameras. The image circle was designed to match the size of the image sensors of digital SLR cameras that also allows compact body and lightweight. This remarkably compact high performance zoom lens is ideally suited to a wide range of subjects and lens has a minimum focusing distance of 110cm (43.3") and maximum magnification of 1:4.

* If Olympus E-1 digital cameras is used, the angle of view will be equal to 110-400mm focal length.

55-200mm F4-5.6 DC specifications

Focal Length 55 - 200 mm
Minimum Aperture F22
Lens Construction 10 Elements in 9 Groups
Angle of View 22.2° - 6.2°
Number of Diaphragm Blades 8 pcs
Minimum Focusing Distance 110 cm (43.3")
Maximum Magnification 1:4.5
Filter Size 55 mm
Lens Hood Bayonet Hood
Mount 4/3 system
Dimensions (dia x len) 71.5 mm (2.8") x 87.1 mm (3.4")
Weight 310 g (10.9 oz)

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