Photography enthusiasts and professionals, get ready, Sigma UK is officially returning toThe Society of Photographers’ 2026 London Photo Convention & Trade Show!

Taking place Thursday 15th to Saturday 17th January 2026 at the Novotel London West, Hammersmith, the Convention will once again bring together leading photography and filmmaking brands, offering visitors the chance to explore the latest gear, meet industry specialists, and experience hands-on demonstrations of cutting-edge technology.

Sigma UK, internationally respected for its world-class lenses, and relentless commitment to innovation, will be showcasing a wide range of products designed to inspire photographers of all genres.

Colin Jones, CEO of The Society of Photographers, shared his excitement:

“We’re thrilled to welcome Sigma UK back to the 2026 Convention. Sigma remains one of the most innovative brands in the industry, and their optics have become a staple for photographers around the world. Attendees will have the opportunity to try the latest Sigma lenses and cameras, speak with their expert team, and gain valuable insight into how Sigma technology can elevate their craft. It’s a fantastic addition to an already strong exhibitor line-up.”

The Must-Attend Event of 2026

If you’re passionate about photography, you won’t want to miss this.

The Trade Show offers free entry to everyone who registers before 1 January 2026. After that, tickets will be £10. So now is the perfect time to secure your place.

Expect three action-packed days featuring:

• The latest cameras, lenses, lighting and accessories
• Live demos, expert advice and real-world shooting inspiration
• Masterclasses, Superclasses and hands-on learning opportunities
• Major retailers, exclusive discounts and unmissable deals

Secure Your Free Trade Show Ticket

Join Nikon and more than 100 top brands, at the UK’s best photography event of 2026.

Visit the official Convention & Trade Show page for full details and registration.

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1. Sigma 35mm F1.2 DG II | Art

Available: 25 September 2025 • Price: £1,299 • Mounts: L-Mount, Sony E
Building upon the legacy of the 2019 35mm F1.2 DG DN | Art, Sigma’s new 35mm F1.2 DG II | Art delivers dramatically improved optical performance in a package that is approximately 30% smaller. It offers outstanding high-resolution clarity, captivating bokeh, and suppressed focus breathing enhancing both stills and video workflows without compromise.

2. Sigma 135mm F1.4 DG | Art

Available: 25 September 2025 • Price: £1,649 • Mounts: L-Mount, Sony E
Sigma introduces the world’s first autofocus 135mm lens with an F1.4 aperture, delivering breathtaking bokeh, exquisite detail, and a natural, dimensional perspective for portrait photography. This lens redefines expressive imaging beyond the reach of conventional 135mm F1.8 designs.

3. Sigma 20-200mm F3.5-6.3 DG | Contemporary

Available: 25 September 2025 • Price: £799 • Mounts: L-Mount, Sony E
Encapsulating versatility in a compact form, the 20-200mm F3.5-6.3 is the world’s first high-power full-frame mirrorless zoom offering a sweeping 10× range. From ultra-wide landscapes to telephoto close-ups (1:2 magnification), its fast, light, and accurate autofocus powered by a High-response Linear Actuator makes this lens ideal for travel and everyday photography.

4. Sigma AF Cine 28-45mm T2 FF

Available: 6 November 2025 • Price: £2,599 • Mounts: L-Mount, Sony E
Marking Sigma’s entry into motorised cine optics, the AF Cine 28-45mm T2 FF is the first autofocus cine lens in the company’s Cine Line. Drawing from the high optical pedigree of the Art series, this lens combines precision autofocus tracking capabilities with cine-grade ergonomics designed to meet the demands of professional film production.

Summary

With these four lenses, Sigma once again reinforces its commitment to optical excellence and user-driven innovation expanding creative possibilities for photographers and cinematographers alike.

For more information or to arrange a review sample, please contact Sigma UK via their official channels.

The post Sigma Announces Four Innovative Lenses for Full-Frame Mirrorless Cameras appeared first on The Society of Photographers | International Photography Organisation.

Photography enthusiasts and professionals, prepare to be inspired! Sigma Imaging, renowned worldwide for its innovation in the optical field and its premium-quality lenses and cameras, has officially confirmed its attendance at The Society of Photographers’ 2025 London Photo and Video Trade Show.

From Thursday, 16th to Saturday, 18th January 2025, the Novotel London West in Hammersmith will host over 100 leading photography brands, including Sigma. This event promises an unparalleled opportunity to explore the latest advancements in photographic technology, meet industry experts, and experience firsthand the superior craftsmanship of Sigma’s products.

Colin Jones, CEO of The Society of Photographers, expressed his enthusiasm:
“We are delighted to welcome Sigma Imaging to the 2025 event. Sigma’s reputation for delivering top-quality optics and innovation is well-known, and we’re excited for our attendees to explore their outstanding range of lenses and cameras. With Sigma’s team on-hand to provide expert advice and showcase their cutting-edge equipment, this is an unmissable opportunity for photography professionals and enthusiasts alike.”

This is the must-attend event for anyone passionate about photography and videography. With free entry to the Trade Show for those who register before 14 January 2025 (after that, tickets will be £10), there’s no better time to secure your place and experience the future of imaging!

Visit The Society of Photographers’ 2025 London Photo Convention & Trade Show page for more details and registration.

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Sigma are pleased to announce that the download of firmware for SIGMA’s L-Mount is now available.

The changes in this firmware are as follows:

Applicable product and version
SIGMA 35mm F2 DG DN | Contemporary Ver1.3 for L-Mount

Benefit of the update
The exposure stability has been improved.
The operational stability has been improved when continuous shooting is performed in continuous AF (AF-C) mode.

How to update
For those who update the firmware in-camera
Before updating the firmware, click on the firmware download page below and read “Before updating”.

https://www.sigma-global.com/en/support/firmware/c020_35_2/?mount=l-mount

For those who own the SIGMA USB DOCK UD-11
Connect the lens to your computer via the SIGMA USB DOCK UD-11 (sold separately), then open SIGMA Optimization Pro*. If the firmware isn’t the latest version, the following message will appear: “The latest lens firmware is available.” Click “Yes” to update.

Before updating lens firmware via the SIGMA USB DOCK UD-11 for L-mount, please ensure that you have updated to the latest version of SIGMA Optimization Pro.

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Sigma are pleased to announce that the download of firmware for SIGMA’s E-mount is now available.

The changes in this firmware are as follows:

Applicable products and versions

・SIGMA 17mm F4 DG DN | Contemporary Ver.02 for Sony E-mount
・SIGMA 20mm F2 DG DN | Contemporary Ver.03 for Sony E-mount
・SIGMA 24mm F2 DG DN | Contemporary Ver.03 for Sony E-mount
・SIGMA 24mm F3.5 DG DN | Contemporary Ver.03 for Sony E-mount
・SIGMA 35mm F2 DG DN | Contemporary Ver.04 for Sony E-mount
・SIGMA 45mm F2.8 DG DN | Contemporary Ver.06 for Sony E-mount
・SIGMA 50mm F2 DG DN | Contemporary Ver.02 for Sony E-mount
・SIGMA 65mm F2 DG DN | Contemporary Ver.03 for Sony E-mount
・SIGMA 90mm F2.8 DG DN | Contemporary Ver.03 for Sony E-mount

Benefit of the update

Compatibility with continuous shooting of up to approximately 120 frames per second has been added for the autofocus modes (AF-S/DMF/MF) on Sony α9 III cameras & the operational stability has been improved.

How to update

Please click on ‘For Windows’ or ‘For Mac’ in the firmware download page below for your lens in Sony E-mount, read “Before updating” and follow the update procedure.
https://www.sigma-global.com/en/support/firmware/

*After the update is complete, be sure to remove the battery pack from the camera and reinsert it.

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Development of these four primes for Canon RF Mount was initially announced on April 23, 2024, alongside the 10-18mm 2.8 DC DN | Contemporary and 18-50mm F2.8 DC DN | Contemporary lenses, both of which were released earlier this year.

With the release of these new lenses, SIGMA now offers a total of six APS-C format DC DN lenses for the Canon EOS R System. All six of these lenses are also available for several other mirrorless camera systems including Sony E-mount, L-Mount, and Fujifilm X Mount. The 16mm F1.4 DC DN | Contemporary, 30mm F1.4 DC DN | Contemporary and 56mm F1.4 DC DN | Contemporary are additionally offered for Nikon Z mount and Micro Four Thirds.

The 30mm F1.4 DC DN | Contemporary will retail for $369 and the 56mm F1.4 DC DN | Contemporary will retail for $529. These lenses will be available for purchase on December 5, 2024.

The 16mm F1.4 DC DN | Contemporary will retail for $489, and the 23mm F1.4 DC DN | Contemporary will retail for $599. These lenses will be available for purchase on January 23, 2025.

The addition of these four premium SIGMA lenses for Canon RF Mount adds to SIGMA’s growing lineup of lenses for all major camera systems.

To see the full line of SIGMA lenses available by camera system, visit sigmaphoto.com/it-just-clicks.

Long-awaited Canon RF Mount addition

SIGMA’s APS-C size mirrorless dedicated prime lenses, the SIGMA 16mm F1.4 DC DN | Contemporary, SIGMA 23mm F1.4 DC DN | Contemporary, SIGMA 30mm F1.4 DC DN | Contemporary and SIGMA 56mm F1.4 DC DN | Contemporary will now be available for the Canon RF Mount. These additions allow users to enjoy high-performance, and high-quality SIGMA prime lenses in native mount on their Canon RF Mount system.

A control algorithm including AF drive and communication speed optimization has been developed specifically for Canon RF Mount interchangeable lenses. In addition to realizing high-speed AF, the lens also supports Servo AF and in-camera aberration correction*. The mount is rubber-sealed to cater for use in a variety of environments.

• Available on supported cameras only.

Mount Conversion Service is available to convert other mounts of SIGMA 16mm F1.4 DC DN | Contemporary, SIGMA 23mm F1.4 DC DN | Contemporary, SIGMA 30mm F1.4 DC DN | Contemporary and SIGMA 56mm F1.4 DC DN | Contemporary to Canon RF Mount, once they launch.

Launch schedule of four SIGMA F1.4 prime lenses for Canon RF Mount

SIGMA Corporation is pleased to announce the launch date of SIGMA 30mm F1.4 DC DN | Contemporary and SIGMA 56mm F1.4 DC DN | Contemporary for Canon RF Mount, as well as the approximate launch schedule of SIGMA 16mm F1.4 DC DN | Contemporary and SIGMA 23mm F1.4 DC DN | Contemporary for Canon RF Mount.

For detailed product information, please refer to the following links:

Launch date: December 5th, 2024 (Thursday)

SIGMA 30mm F1.4 DC DN | Contemporary
Supplied Accessories: LENS HOOD LH586-01, FRONT CAP LCF-52 III, REAR CAP LCR II
Mount: Canon RF Mount
Product page: https://www.sigma-global.com/en/lenses/c016_30_14/

SIGMA 56mm F1.4 DC DN | Contemporary
Supplied Accessories: LENS HOOD LH582-01, FRONT CAP LCF-55 III, REAR CAP LCR II
Mount: Canon RF Mount
Product page: https://www.sigma-global.com/en/lenses/c018_56_14/

Approximate launch schedule: January 2025

SIGMA 16mm F1.4 DC DN | Contemporary
Supplied Accessories: PETAL-TYPE HOOD LH716-01, FRONT CAP LCF-67 III, REAR CAP LCR II
Mount: Canon RF Mount
Product page: https://www.sigma-global.com/en/lenses/c017_16_14/

SIGMA 23mm F1.4 DC DN | Contemporary
Supplied Accessories: PETAL-TYPE HOOD LH554-01, FRONT CAP LCF-52 III, REAR CAP LCR II
Mount: Canon RF Mount
Product page: https://www.sigma-global.com/en/lenses/c023_23_14/

• This product is developed, manufactured and sold under license from Canon Inc.

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SIGMA Corporation is pleased to announce the launch date of SIGMA 30mm F1.4 DC DN | Contemporary and SIGMA 56mm F1.4 DC DN | Contemporary for Canon RF Mount, as well as the approximate launch schedule of SIGMA 16mm F1.4 DC DN | Contemporary and SIGMA 23mm F1.4 DC DN | Contemporary for Canon RF Mount.

Launch date: December 5th, 2024 (Thursday)

SIGMA 30mm F1.4 DC DN | Contemporary
Supplied Accessories: LENS HOOD LH586-01, FRONT CAP LCF-52 III, REAR CAP LCR II
Mount: Canon RF Mount
Product page: https://www.sigma-global.com/en/lenses/c016_30_14/

SIGMA 56mm F1.4 DC DN | Contemporary
Supplied Accessories: LENS HOOD LH582-01, FRONT CAP LCF-55 III, REAR CAP LCR II
Mount: Canon RF Mount
Product page: https://www.sigma-global.com/en/lenses/c018_56_14/

Approximate launch schedule: January 2025

SIGMA 16mm F1.4 DC DN | Contemporary
Supplied Accessories: PETAL-TYPE HOOD LH716-01, FRONT CAP LCF-67 III, REAR CAP LCR II
Mount: Canon RF Mount
Product page: https://www.sigma-global.com/en/lenses/c017_16_14/

SIGMA 23mm F1.4 DC DN | Contemporary
Supplied Accessories: PETAL-TYPE HOOD LH554-01, FRONT CAP LCF-52 III, REAR CAP LCR II
Mount: Canon RF Mount
Product page: https://www.sigma-global.com/en/lenses/c023_23_14/

SIGMA’s APS-C size mirrorless dedicated prime lenses, the SIGMA 16mm F1.4 DC DN | Contemporary, SIGMA 23mm F1.4 DC DN | Contemporary, SIGMA 30mm F1.4 DC DN | Contemporary and SIGMA 56mm F1.4 DC DN | Contemporary will now be available for the Canon RF Mount. These additions allow users to enjoy high-performance, and high-quality SIGMA prime lenses in native mount on their Canon RF Mount system.

A control algorithm including AF drive and communication speed optimization has been developed specifically for Canon RF Mount interchangeable lenses. In addition to realizing high-speed AF, the lens also supports Servo AF and in-camera aberration correction*. The mount is rubber-sealed to cater for use in a variety of environments.

• Available on supported cameras only.

Mount Conversion Service is available to convert other mounts of SIGMA 16mm F1.4 DC DN | Contemporary, SIGMA 23mm F1.4 DC DN | Contemporary, SIGMA 30mm F1.4 DC DN | Contemporary and SIGMA 56mm F1.4 DC DN | Contemporary to Canon RF Mount, once they launch.

See here for full specs

The post Launch schedule of four SIGMA F1.4 prime lenses for Canon RF Mount appeared first on The Society of Photographers | International Photography Organisation.

Supplied accessories: LENS HOOD LH706-02, FRONT CAP LCF-67 III, REAR CAP LCR II
Mount: Canon RF Mount
Launch : September 26th, 2024

^{* Product appearance and specifications are subject to change.}

Create expressive images on the go with the world’s smallest and lightest ultra-wide-angle zoom lens for APS-C cameras*

• As an AF F2.8 zoom lens for mirrorless cameras with an APS-C sensor. As of October, 2023 by SIGMA.

Long-awaited Canon RF Mount addition

SIGMA’s APS-C size mirrorless dedicated zoom lens, the SIGMA 10-18mm F2.8 DC DN | Contemporary, will now be available for the Canon RF Mount. This addition allows users to enjoy high-performance, and high-quality SIGMA zoom lenses in native mount on their Canon RF Mount system even more.

A control algorithm including AF drive and communication speed optimization has been developed specifically for Canon RF Mount interchangeable lenses. In addition to realizing high-speed AF, the lens also supports Servo AF and in-camera aberration correction*. The mount is rubber-sealed to cater for use in a variety of environments.

• Available on supported cameras only.

Mount Conversion Service is available to convert other mounts of SIGMA 10-18mm F2.8 DC DN | Contemporary to Canon RF Mount.

Specifications

Values are for Canon RF Mount
Lens Construction: 13 elements in 10 groups (3 FLD, 1 SLD and 4 aspherical lenses) | Angle of View (APS-C): 106.6° (W) – 73.4° (T) | Number of Diaphragm Blades: 7 (rounded diaphragm) | Minimum Aperture: F22 | Minimum Focusing Distance: 11.6cm (W) – 19.1cm (T) / 4.6in. (W) – 7.6in. (T) | Maximum Magnification Ratio: 1:4 (W) – 1:6.9 (T) | Filter size: φ67mm | Dimensions (Diameter x Length): φ72.2mm x 62.0mm / φ2.8in. x 2.4in. | Weight: 270g / 9.5oz.

Information

SIGMA GLOBAL VISION：
https://www.sigma-global.com/

The post SIGMA Corporation is pleased to announce the launch schedule of SIGMA 10-18mm F2.8 DC DN | Contemporary for Canon RF Mount. appeared first on The Society of Photographers | International Photography Organisation.

• The appearance and specifications of the product are subject to change.
• This product is developed, manufactured and sold based on the specifications of E-mount which was disclosed by Sony Corporation under the license agreement with Sony Corporation.
• L-Mount is a registered trademark of Leica Camera AG.

Beyond standard
Harness the power of this versatile and portable F2.8 optic with an extended 28-105mm focal range – a standard zoom that goes well beyond standard.

The SIGMA 28-105mm F2.8 DG DN | Art is not just another standard zoom lens. With a powerful wide-angle to medium telephoto focal length and a bright F2.8 aperture throughout, this full-frame mirrorless zoom combines outstanding optical performance, superb build quality and a range of pro-grade features to make it one of the most versatile optics on the market for mirrorless systems. The lens is built to tackle a huge range of subjects and situations, from expansive low-light landscapes to portraits with big, beautiful bokeh, and thanks to SIGMA’s latest optical technology and the use of large diameter elements including FLD, SLD and five aspherical elements, it is able to do so with superb clarity and sharpness. This allows the lens to deliver exceptional versatility without compromising on optical quality. The lens also includes high-speed AF with HLA technology, a rugged dust- and splash-resistant structure, and various functions such as an aperture ring, all packed into a compact and lightweight body weighing less than 1kg, making it an exceptional all-round choice for both stills and video.

Key specifications

Lens construction: 18 elements in 13 groups (2 FLD, 1 SLD, 5 aspherical elements)｜ Angle of view: 75.4-23.3°｜Number of diaphragm blades: 12 (rounded diaphragm) | Minimum aperture: F22｜Minimum focusing distance: 40cm / 15.8in.｜ Maximum magnification ratio: 1:3.1 at f=105mm｜Filter size: φ82mm | Maximum Diameter x Length: φ87.8mm x 157.9mm / φ3.5in. x 6.2in.｜Weight: 995g / 35.1oz.
*The figures are for the L-Mount version.

SIGMA Corporation:
https://www.sigma-global.com/en/

SIGMA 28-105mm F2.8 DG DN | Art
Product Information:
https://www.sigma-global.com/en/lenses/a024_28_105_28/

The post SIGMA Corporation is pleased to announce the launch schedule of the SIGMA 28-105mm F2.8 DG DN | Art. appeared first on The Society of Photographers | International Photography Organisation.

A large F2.8 aperture zoom lens that need never leave your camera. This exceptionally light, bright, and sharp standard zoom for crop-sensor mirrorless cameras is the ultimate workhorse lens.

Long-awaited Canon RF Mount addition
SIGMA’s first APS-C size mirrorless dedicated zoom lens, the SIGMA 18-50mm F2.8 DC DN | Contemporary, will now be available for the Canon RF Mount. This addition allows users to enjoy high-performance, and high-quality SIGMA zoom lenses in native mount on their Canon RF Mount system.

A control algorithm including AF drive and communication speed optimization has been developed specifically for Canon RF Mount interchangeable lenses. In addition to realizing high-speed AF, the lens also supports Servo AF and in-camera aberration correction*. The mount is rubber-sealed to cater for use in a variety of environments.
^{* Available on supported cameras only.}

Mount Conversion Service is available to convert other mounts of SIGMA 18-50mm F2.8 DC DN｜Contemporary to Canon RF Mount.

Specifications
Lens Construction：10 groups, 13 elements (1 SLD and 3 aspherical lenses)｜Angle of View：73.4° (W) -30.0° (T)｜Number of Diaphragm Blades：7 (rounded diaphragm)｜Minimum Aperture：F22｜Minimum Focusing Distance：12.1 (W) -30 (T) cm / 4.8 (W) -11.9 (T) in.｜Maximum Magnification Ratio：1:2.8 (W) -1:5 (T)｜Filter size：φ55mm｜Dimensions (Diameter × Length)：φ69.2mm × 74.5mm / φ2.7in. x 2.9in.｜Weight：300g / 10.6oz.
*Values are for Canon RF Mount

SIGMA 18-50mm F2.8 DC DN | Contemporary product information：
https://www.sigma-global.com/en/lenses/c021_18_50_28/

Supplied accessories: PETAL-TYPE HOOD LH582-02, FRONT CAP LCF-55 III, REAR CAP LCR II
Mount: Canon RF Mount
Launch : 11th July, 2024

^{* Product appearance and specifications are subject to change.}

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