Sigma product advisory for Lens Aberration Correction bug on Canon EOS 6D Mark II, EOS 77D, Rebel T7i and Rebel SL2

Sigma Product Advisory For Lens Aberration Correction Bug On Canon EOS 6D Mark II, EOS 77D, Rebel T7i And Rebel SL2

Sigma issued a warning for some of their lenses. These lenses (see list below) are not fully compatible with the new Canon EOS 6D Mark II, EOS 77D, Rebel T7i and Rebel SL2. An error occurs during LIve View shooting when the “lens aberration correction” feature is turned on.

Sigma advisory:

Dear Canon EOS 6D Mark II, EOS 77D, EOS Rebel T7i, EOS Rebel SL2 Users

Thank you for purchasing and using our products.

We have found that some SIGMA interchangeable lenses for CANON are not fully compatible with EOS 6D Mark II, EOS 77D, EOS Rebel T7i, EOS Rebel SL2.

When certain lenses are attached to these cameras and the “Lens aberration correction” function on these cameras is set to “Enable” for Live View shooting, an error would occur.

Please set the “Lens aberration correction” function of the cameras to “Disable” when using SIGMA’s interchangeable lenses for CANON.

In addition, please also refer to other notice below, related to the usage of EOS mount SIGMA lenses on Canon cameras.

[Phenomenon]

When the lenses listed below are used on EOS 6D Mark II, EOS 77D, EOS Rebel T7i, EOS Rebel SL2 and the “Lens aberration correction” function on the camera is set to “Enable” for Live View shooting, an error would occur.

[Products concerned]

  • SIGMA 30mm F1.4 DC HSM | Art
  • SIGMA 35mm F1.4 DG HSM | Art
  • SIGMA 30mm F1.4 EX DC HSM
  • SIGMA 50mm F1.4 EX DG HSM
  • SIGMA 85mm F1.4 EX DG HSM
[Usage Notice for customers who are using EOS mount SIGMA lenses on CANON cameras]

When using the SIGMA lenses for CANON, “Peripheral illumination correction”, “Chromatic aberration correction”, “Diffraction correction” as well as “Distortion correction” from the “Lens aberration correction” function of the camera are not supported. Therefore, we recommend you to set them to “Disable”.

If those functions are set to “Enable”, the performance of the lenses may not be accurate.

For further information, please contact your nearest authorized SIGMA subsidiary / distributor.
http://www.sigma-global.com/en/about/world-network/

We appreciate your continued support for our company and products.

The Sigma 24-70mm f/2.8 DG OS HSM gives you a lot for less (money), says LensRentals

Sigma 24-70mm f/2.8 DG OS HSM: Amazon | B&H Photo | Digitalrev | eBay | Adorama | Canon USA

At a glance:

  • EF-Mount Lens/Full-Frame Format
  • Aperture Range: f/2.8 to f/22
  • Three SLD and Four Aspherical Elements
  • Super Multi-Layer Coating
  • Hyper Sonic AF Motor, Manual Override
  • Optical Stabilizer
  • Rounded 9-Blade Diaphragm
  • TSC Material, Brass Bayonet Mount
  • Compatible with Sigma USB Dock

The Sigma 24-70mm f/2.8 DG OS HSM was one of the most anticipated lenses as of late. Can this lens, covering a popular full-frame focal range, beat the offerings of Canon and Nikon?

According to LensRentals’ review, it appears Sigma build another winner, another lens that many people will purchase instead of other offerings. Not only the Sigma 24-70mm f/2.8 DG OS HSM has a significantly lower price ($1,300 vs $1,750 of the Canon EF 24-70mm f/2.8 II), but it also has image stabilisation (the Canon has not). Add to this the excellent buid quality and you have a what is another great SIgma lens. However, the reviewer points put that both the Canon and Nikon offering in this focal range are sharper.

In the conclusion, the reviewer writes:

[…] the Sigma 24-70mm Art Series does a lot of things great. Keeping the form factor small, while adding the functionality of stabilization is impressive in its own right, and the price point is incredible when compared to what it’s up against. No doubt, if this is the first pro-grade 24-70mm lens you’ve used, you’ll be really impressed with the quality. For those who aren’t in a rush to update their 24-70mm lens, it might be best to wait and see what Tamron has in their newly announced Tamron 24-70mm f/2.8 Di VC USD G2.

Read the review at LensRentals.

Sigma 24-70mm f/2.8 DG OS HSM Sample Images (Photography Blog)

At a glance:

  • EF-Mount Lens/Full-Frame Format
  • Aperture Range: f/2.8 to f/22
  • Three SLD and Four Aspherical Elements
  • Super Multi-Layer Coating
  • Hyper Sonic AF Motor, Manual Override
  • Optical Stabilizer
  • Rounded 9-Blade Diaphragm
  • TSC Material, Brass Bayonet Mount
  • Compatible with Sigma USB Dock

Photography Blog posted a set of  sample photos shot with a Sigma 24-70mm f/2.8 DG OS HSM on a Canon EOS 5DS R.

Sigma 24-70mm f/2.8 DG OS HSM Art ($1,299): B&H Photo | Adorama

Sigma 135mm f/1.8 DG ART review (best lens tested so far by photozone.de)

Sigma 135mm F/1.8 DG ART Review (best Lens Tested So Far By Photozone.de)

Sigma 135mm f/1.8 Art: Amazon | B&H Photo | Digitalrev | eBay | Adorama | Canon USA

At a glance:

  • EF-Mount Lens/Full-Frame Format
  • Aperture Range: f/1.8 to f/16
  • Two FLD Elements, Two SLD Elements
  • Super Multi-Layer Coating
  • Hyper Sonic AF Motor, Manual Override
  • Rounded 9-Blade Diaphragm
  • TSC Material, Brass Bayonet Mount
  • Compatible with Sigma USB Dock

Lens testing authority photozone.de reviewed the Sigma 135mm f/1.8 DG ART, a new Sigma lens that gets a lot of positive feedback. The Sigma was tested on a Canon EOS 5Ds R.

In the conclusion the reviewer writes:

Those who have followed us [i.e. photozone.de, editors note] over the years know that we don’t easily come up with superlatives but this time it’s hard to avoid them really. The Sigma lens is the best lens that we have tested so far. The resolution figures are outlandishly good -plus low CAs, very low distortions and comparatively low vignetting. The quality of the bokeh is very close to perfection (for a conventional lens) except for the inevitable cat eye highlights in the image corners. If there is a real weakness it is bokeh fringing at large aperture settings. However, we’ve rarely seen lenses that can correct them and they were not as fast anyway.

The build quality is top notch and, honestly, we can’t really find any downsides here. The used materials are of great quality and weather-sealing helps in situations when the going gets tough. The AF is very fast and near silent. Read the full review…

Well, that’s a hell of a positive feedback for the Sigma 135mm f/1.8 DG ART. The Sigma sells for $1,399, which seems to be a fair price for a lens such as this. If you want to learn more about the Sigma 135mm f/1.8 Art lens have a look at the MTF figures, Imaging Resource’s review, Dustin Abbott’s review,

 

Sigma service notice for Auto-Focus issue with Sigma MC-11 mount adapter on Sony a9

 

Sigma MC-11

Sigma MC-11

Sigma MC-11 at a glance:

  • Adapt SA/EF-Mount Lens to Sony E Body
  • Integrated LED Displays Compatibility
  • Maintains Autofocus and Auto-Exposure
  • Supports In-Camera Correction Features
  • Flocked Interior Reduces Reflections
  • Retains EXIF Data

Sigma released a service notice for the Sigma MC-11 mount adapter (Canon EF or Sigma SA lenses to Sony E camera bodies) on Auto-Focus issues that may occur when using AF-S mode with telephoto lenses on a Sony a9.

Thank you for purchasing and using our products.

We have found that the combination of SIGMA MOUNT CONVERTER MC-11 (SA-E and EF-E) and some of SIGMA’s interchangeable zoom lenses may not focus precisely, if it is attached to SONY a9 (ILCE-9), released by SONY in May in 2017.

When using AF-S mode and shooting in telephoto range, it could occasionally display the shot is in focus, although it may not be spotted properly on the subject.

We are afraid of this inconvenience caused to the customers who use these products.

We are now investigating the phenomenon and will make a further announcement on the website shortly.

We appreciate your continued support for our company.

For further information, please contact your nearest authorized SIGMA subsidiary / distributor.
http://www.sigma-global.com/en/about/world-network/

Using big white Canon telephoto lenses with the MC-11 adapter on a Sony a9 may lead to such AF issues. You may want to have a look here.