https://dc.watch.impress.co.jp/docs/review/special/1340397.html

New firmware

• Ensured compatibility with Canon’s in-camera Lens Aberration Correction function, which enables correction matching the optical characteristics of the attached lens.
  Compatible cameras:
  Canon EOS-1D X Mark II, EOS 5Ds, EOS 5Ds R, EOS 5D Mark IV, EOS 6D Mark II, EOS 80D, EOS 8000D (EOS Rebel T6s, EOS 760D), EOS 9000D (EOS 77D) , EOS Kiss x8i (EOS Rebel T6i, EOS 750D), EOS Kiss x9i (EOS Rebel T7i, EOS 800D), EOS Kiss x9 (EOS Rebel SL2, EOS 200D)
• Corrected the phenomenon that abnormal images appear or operation errors occur when Canon’s in-camera Lens Aberration Correction function is enabled.
• Improved the AF speed in certain combinations with some cameras.

Sigma 150-600mm F5-6.3 DG OS HSM "Contemporary" Lens for $789

• Canon - https://www.adorama.com/sg150600cca.html
• Nikon - https://www.adorama.com/sg150600cnk.html

$679 deal for Nikon one at http://www.ebay.com/itm/Sigma-150-600mm-F5-6-3-DG-OS-HSM-Zoom-Lens-Contemporary-for-Nikon-DSLR-Cameras-/321861282065

MTF measurement

New firmware

Thank you for purchasing and using our products.

We would like to announce the availability of a new firmware update for the SIGMA 150-600mm F5-6.3 DG OS HSM | Sports in Nikon mount and the SIGMA 150-600mm F5-6.3 DG OS HSM | Contemporary in Nikon mount.

This firmware update can be installed using SIGMA Optimization Pro.

The lens firmware update corrects the phenomenon of overexposure when the lens is attached to the SIGMA TELE CONVERTER TC-1401 on Nikon Digital SLR camera “D500”, released by NIKON CORPORATION.

For customers who own the following applicable products and also SIGMA USB DOCK, please update the lens firmware using SIGMA Optimization Pro.

For customers who do not own SIGMA USB DOCK, the lens firmware update will be provided free of charge. Please contact your nearest authorized subsidiary/distributor of SIGMA.

Applicable products

• SIGMA 150-600mm F5-6.3 DG OS HSM | Sports – Nikon mount
• SIGMA 150-600mm F5-6.3 DG OS HSM | Contemporary - Nikon mount

Benefit of this firmware update

It has corrected the phenomenon that it shows some overexposure when it is attached with SIGMA TELE CONVERTER TC-1401 on Nikon D500.

For customers who are using SIGMA Optimization Pro Ver1.1 or earlier, please ensure to update it to Ver1.3 from the following Download page before updating the lens firmware.

Download page: http://www.sigma-global.com/download/

We appreciate your continued support for our company and products.

We would like to announce the availability of a new firmware update for the SIGMA 150-600mm F5-6.3 DG OS HSM | Sports in Canon and Nikon mount, and the SIGMA 150-600mm F5-6.3 DG OS HSM | Contemporary in Canon and Nikon mount. This firmware update can be installed using SIGMA Optimization Pro, the dedicated software for the SIGMA USB DOCK.

Benefit of this firmware update

The latest firmware update improves the AF algorithm of 150-600mm F5-6.3 DG OS HSM lenses and further enhances AF speed by optimizing HSM (Hyper Sonic Motor) drive control. Depending on shooting conditions, it is expected to increase autofocus speed by approximately 20%, to a maximum of 50%, during normal shooting as well as when using “Speed Priority” set through SIGMA Optimization Pro.

For customers who own the SIGMA USB DOCK and applicable products listed below, please update the firmware using SIGMA Optimization Pro. Please ensure SIGMA Optimization Pro is updated to Version 1.2 before updating the lens firmware.

For customers who do not own a SIGMA USB DOCK, please contact Sigma Imaging (UK) Ltd for details about updating the firmware free of charge.

http://www.sigma-global.com/download/en

We would like to announce that we are planning to release a firmware update for the SIGMA 150-600mm F5-6.3 DG OS HSM | Sports in Canon and Nikon mount, as well as the SIGMA 150-600mm F5-6.3 DG OS HSM | Contemporary in Canon and Nikon mount on Friday, March 11th, 2016.

The latest firmware update improves the AF algorithm of 150-600mm F5-6.3 DG OS HSM lenses and further enhances AF speed by optimizing HSM (Hyper Sonic Motor) drive control.

It is expected to increase autofocus speed by approximately 20%, to a maximum of 50%, during normal shooting as well as when using “Speed Priority” set through SIGMA Optimization Pro.

https://www.sigma-photo.co.jp/english/new/new_topic.php?id=561

http://www.focus-numerique.com/test-2200/objectif-sigma-150-600-mm-f5-63-dg-os-hsm-s-flash-test-8.html

http://www.photographyblog.com/previews/sigma_150_600mm_f5_6_3_dg_os_hsm_contemporary_photos/

The build quality is excellent: it's heavy, but reassuringly built with full weather sealing. The AF, when coupled with a decent DSLR, is fast, confident and very usable for sports. And the optical quality in my tests proved to be very respectable across the entire range. You can see some vignetting and evidence of coloured fringing, but both are easily corrected in RAW conversions, and importantly the lens delivers where it should with fine, well-resolved details right into the corners of full-frame images.

http://cameralabs.com/reviews/Sigma_150-600mm_f5-6-3_DG_OS_HSM_Sport/

New firmware, version 1.02 for Canon, 1.01 for Nikon and Sigma.

OS mode 2 is optimized for panning photography, and has been improved to offer effective compensation, not only in horizontal direction, but also vertical and diagonal directions.

http://www.sigma-global.com/download/en/index.html