Sigma 105mm F2.8 EX DG OS HSM Macro announced

Sigma just announced their latest macro lens : the Sigma 105mm f2.8 EX DG OS HSM. The lens update previous version by adding Optical Stabilizer technology

  • true 1:1 macro reproduction
  • OIS ( image stabilization )
  • suggested price : $1400 , but usually is going to be less than that.
  • a floating focusing system
  • support for Sigma’s APO teleconverter

I guess the suggested price is a bit expensive for a macro lens , especially when Nikon/Canon have it cheaper ( Nikon 105mm VR for $950 ). But if the quality is so much better then , why not? Can’t wait to see the reviews

Press Release:

Ronkonkoma, NY, June 28, 2011 – Sigma Corporation of America, a leading researcher, developer, manufacturer and service provider of some of the world’s most impressive lines oflensescameras and flashes, is pleased to announce that its newly upgraded 105mm F2.8 EX DG OS HSM Macro lens is now available for the MSRP of $1,400.

The updated 105mm F2.8 EX DG OS HSM Macro lens now features Sigma’s own proprietary Optical Stabilizer (OS) technology, which allows for high-performance, handheld, close-up photography. The telephoto reach makes it a perfect lens for capturing images of insects and small creatures. Additionally, the wide maximum aperture combined with a short telephoto focal length make it very favorable for facial portraiture at lower magnification. A Special Low Dispersion (SLD) lens and one high refractive index SLD lens provide excellent corrections for all types of aberration and distortion.

“This lens is a fantastic addition to our extensive lineup of macro lenses,” said Mark Amir-Hamzeh, president of Sigma Corporation of America. “This is our fourth prime macro lens and the second of which that now includes our Optical Stabilization technology, which steadies the image for handheld use. This is yet another example of Sigma’s dedication to providing an array of unique lens that capture incredible imagery.”

Sigma’s Hyper Sonic Motor (HSM) feature ensures quiet and high-speed autofocus as well as full-time manual focus capability. This lens also has a rounded nine-blade diaphragm that creates an attractive blur to the out-of-focus areas of the image.

The 105mm F2.8 EX DG OS HSM Macro features a floating focusing system that moves two different lens groups in the optical path to different positions. This system compensates for astigmatic aberration and spherical aberration, and provides extremely high optical performance from infinity to 1:1 macro. The super multi-layer coating reduces flare and ghosting, providing high contrast images. It is also possible to use this lens with Sigma’s APO teleconverters.

This announcement comes as part of an ongoing celebration of the company’s 50th anniversary. Find out about special anniversary activities and features, including product videos, photo sharing, photography tips and monthly chances to win Sigma products by visiting the anniversary web page.

For information about Sigma Corporation of America, visit For more information about sigma’s lenses, visit


Sigma DP2x compact camera announced

Sigma just announces the Sigma DP2x , the company’s latest compact camera aimed for advanced amateur. The camera is an updated version of previous Sigma DP2 with a 14 megapixel FOVEON X3 APS-C sensor , improved autofocus speed, AFE (Analogue Front End) for faster image capture and TRUE II Image Processing Engine. There is no further info about its price or availability date yet.


Key features:

  • APS-C , SLR-sized image sensor
  • Full-colour image sensor
  • TRUE II image processing engine
  • AFE (Analogue Front End)
  • 24.2mm F2.8 lens
  • RAW format recording
  • 9 AF points
  • Auto ISO , ISO up to 3200
  • burst shooting : 3 fps
  • 2.5″ LCD with 230K dots

Read more »

Firmware update for Sigma SD15

Sigma just announces a firmware update for Sigma SD15. Version 1.01 will enhance SD15 capability with new addition to Quick Set menu and an addition to the Key Sound cancellation function. The Quick Set menu will have another page that contains 4 new customizable shortcut. The Key Sound cancellation will prove useful reducing the electrical-sound when you use Self-Timer and Mirror Lock-up function. With this new update , Sigma also claim it’ll improves the display quality of the Color LCD monitor.


Download the firmware update

Update: SIGMA DP1x firmware

SIGMA has made DP1x firmware update available online. Updated version ( 1.0.1) has these benefits : Corrects the phenomenon that recording time is rather long , Shortens the time of turning on and off.

sigma-dp1xCheck the download page along with step-by-step instructions on how to upgrade your firmware. Note , the update should only apply to firmware version 1.0.0.