Photokina 2008: Sigma has also announced the introduction of a number of existing products in new mounts. These are the 50mm F1.4 EX DG HSM medium telephoto lens for the Four Thirds System, the APO Tele converter 1.4x EX DG and APO Tele converter 2x EX DG for Sony cameras, and the 4.5mm F2.8 EX DC Circular Fisheye HSM and 10mm F2.8 EX DC Fisheye HSM lens for Sony and Pentax. In addition, the EM-140 DG macro flash will also be made available for Sony and Pentax users.

Press Releases:

50mm F1.4 EX DG HSM for Four Thirds System

This large aperture lens becomes a medium telephoto lens offering 100mm equivalent angle of view on Four Thirds cameras. The optimum optical design and molded glass aspherical lens elements provide excellent correction of coma aberration. It ensures superior peripheral brightness and provides sharp, high contrast images even at the maximum aperture. The Super Multi Layer Coating reduces flare and ghosting. Superior optical performance is ensured throughout the focusing range. The rounded 9 blades diaphragm creates an attractive blur. This lens incorporates HSM (Hyper Sonic Motor), ensuring a quiet and high speed AF as well as full time manual focusing capability.

Features:

  • Fast F1.4 aperture medium telephoto lens is ideal for portrait photography
  • Provides sharp and high contrast images even at the maximum aperture
  • Incorporates a molded glass aspherical lens, excellent for correcting coma aberration and creating superior image quality
  • Super Multi Layer Coating reduces flare and ghosting
  • The rounded 9 blades diaphragm creates an attractive blur
  • HSM ensuring quiet and high speed AF with full time manual focusing

New dedicated tele converter for Sony mount telephoto lenses that support HSM

The Sigma Corporation is pleased to announce the new APO TELE CONVERTER 1.4x EX DG and APO TELE CONVERTER 2x EX DG for Sony mount. The new tele converters are capable of maintaining the HSM function of such telephoto lenses as Sigma’s APO 70-200mm F2.8 II EX DG MACRO HSM and APO 50-150mm F2.8 II EX DC HSM whilst increasing the focal length by a factor of 1.4x or 2x.

Of course, the HSM (Hyper Sonic Motor) AF compatibility depends on the capability of the Sony SLR camera to support this function and on the maximum F number of the attached lens. The Super Multi Layer Coating reduces flare and ghosting and the exclusive design maintains the master lens’ high level performance while extending its focal length. Compact and lightweight, these tele converters are a convenient way of increasing the focal length of HSM telephoto lenses.

Announcement of two new fisheye lenses for Sony and Pentax fittings


The Sigma Corporation is pleased to announce the launch of the 4.5mm F2.8 EX DC CIRCULAR FISHEYE HSM the first Circular Fisheye lens exclusively for use with APS-C size digital SLR cameras and 10mm F2.8 EX DC FISHEYE HSM diagonal fisheye lens exclusively for use with APS-C size digital SLR cameras for Sony and Pentax fitting cameras.

4.5mm F2.8 EX DC CIRCULAR FISHEYE HSM For Sony and Pentax
This autofocus circular fisheye lens has an angle of view of 180 degrees in all directions. It is exclusively designed for digital SLR cameras with the APS-C size image sensor. When used in conjunction with digital SLRs with APS-C size image sensor, it produces circular image within the frame. The minimum focusing distance of 13.5cm/5.3inch and maximum magnification of 1:6 make it particularly useful for close-up photography. SLD (Special Low Dispersion) glass, Super Multi Layer Coating and inner focusing system provide superior image quality. HSM ensures fast and quiet auto focusing and includes full-time manual focus

10mm F2.8 EX DC FISHEYE HSM For Sony and Pentax
This diagonal fisheye lens is designed for use with digital SLR cameras equipped with an APS-C size image sensor. It produces a diagonal angle of view of 180 degrees. The diagonal field of view of this fisheye lens produces striking images with exaggerated perspective and distortion. This lens has a minimum focusing distance of 13.5cm/5.3inch, and maximum magnification 1:3.3. It allows subjects to be as close as 1.8cm/0.7inch from the lens’ front element. The exclusively designed integral hood and the Super Multi-Layer Coating minimize flare and ghosting and create superior image quality.

Multifunctional Macro Flash designed to work with new Digital SLR cameras.


ELECTRONIC FLASH MACRO EM-140 DG for Sony and Pentax

The Sigma Corporation is pleased to announce the new ELECTRONIC FLASH MACRO EM-140 DG for Sony and Pentax cameras. ELECTRONIC FLASH MACRO EM-140 DG is designed to work with both AF 35mm film and Digital SLR cameras.

The EM-140 DG Macro Flash is ideal for photographing subjects in fine detail when the shadowless mode is used and is extremely effective for scientific and medical applications. Dual flash tubes can fire simultaneously or separately. Using only one flashtube creates shadow, which can give a three-dimensional feeling to the subject.

The flash features a guide number of 14 w/ISO 100. The Modeling Flash function makes it possible to check for reflections and shadows before actually taking the flash picture.

A wireless flash function is also available, when the EM-140 DG is used as master and the EF-530 DG SUPER as a slave unit for creating fine shadow details. High Speed Synchro and Exposure compensation functions are also available for advanced flash photography.

Features:

  • Ideal for Close-up photography, especially medical and scientific applications
  • Fully dedicated with the latest TTL auto exposure systems
  • Flash tubes can be switched on or off for creative flash control
  • Wireless Flash Control
  • High Speed Synchro Flash