Sigma Patents For 35mm, 50mm, and 85mm F1.2 and F1.4 Lenses Found

By Louis Ferreira | Published: October 3, 2025


Sigma 35mm F1.2 DG DN | Art: B&H Photo / Amazon / Adorama
Sigma 50mm f/1.2 DG DN Art: B&H Photo / Amazon / Adorama

The patents for the Sigma 35mm, 50mm, and 85mm F1.2 and F1.4 were found. The Sigma 85mm f/1.2 hasn’t been released yet.  You can check them out below:

overview

  • [Publication number] P2025124346
  • [Release date] 2025-08-26
  • [Name of invention] Optical system
  • [Application date] 2024-02-14
  • [Applicant]
    [Identification number] 000131326
    [Name or company name] Sigma Corporation
  • The present invention provides an optical system that achieves compactness and light weight while providing a large aperture ratio and effectively correcting various aberrations, including focus breathing and distortion, by appropriately arranging a focus group and an aspherical surface.
  • BACKGROUND ART In recent
    years
    , with the increasing number of pixels in imaging devices such as digital still cameras and video cameras, there has been a growing demand for high optical performance with strong correction of various aberrations from infinity to close range.
  • [0003]
    Furthermore, in recent digital cameras, the focusing accuracy of autofocus (hereinafter referred to as AF) has improved dramatically, making it possible to accurately focus even in bright optical systems with extremely narrow depth of field. As a result, it has become possible to shoot video while maintaining accurate focus even at maximum aperture, greatly expanding the range of visual expression. Therefore, there is a demand for optical systems that suppress changes in the field of view during focusing (hereinafter referred to as focus breathing) even in bright optical systems.
  • On the other
    hand, in order to realize high imaging performance from infinity to close range, a method has been proposed in which two lens groups are moved along different trajectories during focus drive.
  • [0008]
    The present invention has been made in consideration of the above circumstances, and aims to provide an optical system that is small and lightweight, while having a large aperture ratio and effectively correcting various aberrations including focus breathing and distortion, by appropriately arranging the focus group and aspherical surfaces.


Example 1

  • Focal length: 48.27
  • F-number: 1.24
  • Angle of view: 47.90
  • Image height: 21.63
  • Total length: 123.38
  • Back focal length: 17.4116


Example 2

  • Focal length: 82.63
  • F-number: 1.24
  • Angle of view: 28.98
  • Image height: 21.63
  • Total length: 136.91
  • Back focus: 17.1880


Example 3

  • Focal length: 35.06
  • F-number: 1.24
  • Angle of view: 62.68
  • Image height: 21.63
  • Total length: 125.79
  • Back focal length: 17.7164


Example 4

  • Focal length: 48.89
  • F-number: 1.43
  • Angle of view: 48.85
  • Image height: 22.50
  • Total length: 102.43
  • Back focal length: 17.1875


Example 5

  • Focal length: 33.61
  • F-number: 1.44
  • Angle of view: 65.06
  • Image height: 21.63
  • Total length: 105.02
  • Back focal length: 17.3099


Example 6

  • Focal length: 83.29
  • F-number: 1.46
  • Angle of view: 28.78
  • Image height: 21.63
  • Total length: 110.01
  • Back focal length: 16.0126

via asobinet

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LensVid: Sony Yann Salmon-Legagneur Interview “I’d personally love an APS-C RX compact”

By Louis Ferreira | Published: October 2, 2025

Sony FX2: B&H Photo / Amazon / Adorama

Lensvid posted a lengthy interview with Salmon-Legagneur from Sony. Below is a summary of the interview, including their discussion of a possible APS-C RX1 camera.

FX2, RX1R III, 32-Bit Float, AI and More: A Thorough Interview with Sony at IBC 2025
This in-depth interview with Yan Salmon from Sony provides a comprehensive look at recent product updates, strategic decisions behind camera development, the functionality of Sony’s apps, and Sony’s perspective on emerging technologies like 32-bit float audio and AI in cameras.

Recent Sony Updates & Customer Feedback

  • Sony has released the DCC1 dummy battery with USB-C, a direct response to user requests for a genuine Sony power supply that works with both Z and W type batteries.
  • The Alpha 1 has been updated with a new firmware to include focus bracketing for focus stacking, a feature that was highly requested by the community.

RX1R III: Design Philosophy and Performance

  • The RX1R III was introduced a decade after the original, maintaining its status as the world’s smallest fixed-lens full-frame camera.
  • Sony deliberately retained the original lens design to preserve the camera’s ultra-compact form factor and the unique “taste” and “look” that RX1 series customers have come to love.
  • Despite its legacy design, the lens was recalibrated for the new 60-megapixel sensor, delivering exceptional resolution.
  • The autofocus (AF) performance is touted as the “fastest in this segment,” incorporating AI AF for impressive subject detection and fast subject acquisition. It is positioned as an ideal camera for street photography and portraits, though not designed for sports.
The Mid-Range APS-C RX Camera Gap
  • Sony acknowledges a “gap” in its fixed-lens camera lineup between the 1-inch sensor RX100 series and the full-frame RX1R III.
  • Yan Salmon personally expressed a desire for such a camera, stating, “personally I would love it as well”, acknowledging that the RX1R III is a high-end, expensive product.
  • However, he explained that from a business perspective, Sony must consider the market size and the significant commitment in engineering resources, firmware updates, and future successors when deciding to launch a new product line.
  • Developing a new product line could potentially divert resources from existing successful lines like Alpha, FX, and ZV, as well as their extensive portfolio of over 80 lenses.

FX2: Target Audience and Strategic Positioning

  • The FX2 was created to make the cinematic full-frame look accessible to a wider audience at an affordable price, serving as an entry point into the Sony Cinema Line.
  • It includes key filmmaker features such as a fan for heat management, a tally light, L-series battery compatibility, and the “big six menu” from the Venice.
  • Unexpectedly, the camera has garnered interest from the broadcast industry, especially news companies, for achieving a full-frame cinematic look in TV productions.
  • The release of the FX2 before a potential FX3 update was a strategic move to attract young creators and future cinematographers to the Cinema Line.
  • The FX3 is still considered a “working horse”, delivering excellent 4K 120p in low light and offering a robust set of filmmaking features and extensive lens compatibility.

FX2 Viewfinder and Design

  • The integrated viewfinder on the FX2 was a deliberate design choice, in response to feedback from FX3 users and the popularity of integrated viewfinders on cameras like the a7S III and a7 IV.
  • An external, removable viewfinder was considered but ultimately deemed less practical due to the additional engineering, design, and cost, which would have likely increased the camera’s price.
  • A notable design improvement, the FX2 is the first mirrorless camera from Sony to feature two quarter-inch screw holes on the bottom. This addresses the issue of camera plates twisting, especially when using accessories like follow focus systems that apply force to the lens.

Sony Apps: Monitor & Control, and Creator App

  • Audio Level Monitoring: This feature is currently absent from Sony’s apps. Sony prioritized image control features first due to resource allocation but acknowledges the feedback and encourages users to continue requesting it.
  • App Login Process: The lengthy initial login process for Sony apps is a one-time setup that provides benefits like firmware update notifications, extended warranties (in Europe), lens discounts, and access to exclusive training content.
  • Firmware updates via the app are highlighted as a significant improvement in user experience.
  • Multi-camera support in the Monitor & Control app has been expanded to include Mac OS.
  • Android and Windows support for multi-camera control is not currently a priority, as Sony is focusing on ensuring stability on iOS and Mac, which they have identified as the primary platforms for their target professional user base.

32-Bit Float Audio

  • Sony recognizes 32-bit float recording as an interesting technology for increasing audio dynamic range.
  • However, they point out that its benefits are dependent on high-quality microphones and a workflow that accommodates post-production gain adjustments.
  • While it has its place in specific scenarios, Sony currently views it as a niche technology and has not yet integrated it into their cameras, though they are looking into it.

AI in Cameras

  • Sony has been a pioneer in using AI technology for AF tracking with subject recognition.
  • Autoframing, first introduced in the ZV-1, also utilizes AI and has been integrated into broadcast PTZ cameras for advanced scene recognition and subject tracking.
  • Regarding voice control for cameras, Sony believes that speaking to a camera is not practical in many shooting situations where discretion is key (e.g., wildlife, weddings).
  • However, Sony suggests that their Software Development Kits (SDKs) could enable third-party developers to create LLM (Large Language Model) based systems for remote camera control, which could be beneficial in production environments or for users with accessibility needs.

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Lexar Armor Stainless Steel 1TB Cards Now Available

By Louis Ferreira | Published: October 1, 2025


Lexar’s latest SD cards provide expansive capacity and use a stainless-steel construction for extreme durability

Key Features

  • Stainless steel construction is 37X stronger than typical SD cards
  • Rated IP68 for dust- and water-resistance, drop-resistant to 5 meters
  • Simplified designs make a sturdier card with no ribs and no write-protection switch
  • Read speeds up to 280MB/s1 to quickly transfer content
  • Video Speed Class 60 (V60) to seamlessly capture 6K footage
  • Pairs with a USB 3.2 card reader to quickly transfer photos and videos at up to 280MB/s1

San Jose, CA, USA, October 1, 2025—Lexar, a leading global brand of flash memory solutions, is excited to announce the 1TB capacity point for its stainless-steel SD cards, the ARMOR GOLD SDXC™ Card and the ARMOR SILVER PRO SDXC™ Card.

Now available in 1TB, the Lexar® ARMOR GOLD SDXC™ Card and the Lexar® ARMOR SILVER PRO SDXC™ Card can store more photos and footage on a single card. 1TB capacity also provides the room for multiple burst photo collections and 6K video files.

The 1TB Lexar® ARMOR GOLD SDXC™ Card and the 1TB Lexar® ARMOR SILVER PRO SDXC™ Card are classified with a V60 recording speed, to seamlessly capture video in up to 6K without missing a frame. Combined with a read speed of 280MB/s1, users can quickly offload photos and videos and get back into the field.

Built using an extremely durable stainless-steel construction (37x higher than standard memory cards), the 1TB Lexar® ARMOR GOLD SDXC™ Card and the 1TB Lexar® ARMOR SILVER PRO SDXC™ Card are both rated IP68 and are designed to take the hits while users explore the wild.

“Designed for maximum durability, ARMOR SD Cards are built tough to withstand harsh conditions without sacrificing performance,” said Joey Lopez, Director of Brand Marketing. “With the new 1TB capacity, the ARMOR SD cards allow creators to stay in the field longer, record more footage, and capture the right moment without the need of constantly switching cards.”

The 1TB Lexar® ARMOR GOLD SDXC™ Card is compatible with UHS-II and UHS-I devices and will be available late Q3 2025 at an MSRP of $369.99. The 1TB Lexar® ARMOR SILVER PRO SDXC™ Card is compatible with UHS-II and UHS-I devices and will be available Q4 2025 at an MSRP of $364.99.

Posted in Accessories| Tagged , , | 9 Comments

Sony FE 100mm f/2.8 Macro GM Post Launch Coverage

By Louis Ferreira | Published: September 30, 2025


Sony FE 100mm f/2.8 Macro GM: B&H Photo / Amazon / Adorama

The Sony FE 100mm f/2.8 Macro GM was just announced, and preorders have begun.

Press Release

Video Preview / Review / Hands-on / Etc…

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Sony FE 100mm f/2.8 Macro GM Announced

By Louis Ferreira | Published: September 30, 2025


Sony FE 100mm f/2.8 Macro GM: B&H Photo / Amazon / Adorama

Sony Electronics Expands the G Master Series with the Versatile FE 100mm F2.8 Macro GM OSS
Delivers Stunning Detail with up to 1.4x Magnification, Advanced Stabilization, and Optimized Macro Controls

SAN DIEGO, Sept. 30, 2025 /PRNewswire/ — Sony Electronics releases the FE 100mm F2.8 Macro GM OSS (SEL100M28GM), the new medium telephoto macro lens in the G Master™ series, compatible with α™ (Alpha™) E-mount cameras, featuring 1.4x magnification, advanced stabilization, and intuitive handling.

We’re on a constant mission to expand creative possibilities for visual storytellers, and the FE 100mm F2.8 Macro GM OSS fulfills that by going beyond traditional macro  photography,” said Yang Cheng, Vice President of Imaging Solutions, Sony Electronics Inc. “With its world-class optical quality, it enables not only macro photographers, but also portrait and wedding photographers, to take their craft to a new level. We’re thrilled to offer the FE 100mm F2.8 Macro GM OSS as part of our acclaimed G Master series, maintaining a standard of peak performance Sony creators have become accustomed to.”

Beyond Life Size
The FE 100mm F2.8 Macro GM OSS achieves a maximum magnification of up to 1.4x, making it easy to capture flowers, small objects, and other close-up subjects in vivid detail, revealing subtle textures and features that are difficult to see by the naked eye.

Compatible with an optional teleconverteri (sold separately), the lens offers up to 2.8x magnificationii. This enables impressive close-up shots while keeping a comfortable working distance. It is ideal for subjects that are hard to approach or for avoiding unwanted reflections.

State-of-the-art Hardware Design
The optical design effectively positions elements including two XA (extreme aspherical) lenses and two ED (Extra-low Dispersion) glass elements to achieve high-resolution performance from the center to the periphery of the image, reducing chromatic and other aberrations.

To allow precise and intuitive focus adjustments for a variety of macro photography scenes, the lens offers three focus-dedicated features: a “Full-time DMF switch” enables instant MF (manual focus) by rotating the focus ring, even in AF (autofocus) mode; the “Focus Mode switch” allows instant switching between AF and MF; the “Sliding Focus Ring” enables FULL MF mode, linked to the distance and magnification scales.

The four unique XD (extreme dynamic) linear motors that enable high-speed, high-precision, and quiet lens drive, make autofocus (AF) performance up to 1.9 times fasteriii than previous models.

A dedicated aperture ring offers quick, direct control over aperture settings.

Exquisite Image Quality
The 11-blade circular aperture produces beautiful, ball bokeh, while carefully controlled spherical aberration ensures an ideal balance of resolution and background blur — creating the signature creamy bokeh of the G Master line.

The unique “Nano AR Coating II” applies a uniform thin film to the entire lens surface, resulting in clear image quality that suppresses flare and ghosting even in backlit conditions.

An integrated optical image stabilization system, designed for macro photography, accurately compensates for shift shake (up/down/left/right), angular shake, and front/back shake, ensuring steady handheld shots.

Pricing and Availability
The FE 100mm F2.8 Macro GM OSS will be available in November 2025 for approximately $1,499.99 USD and $1,799.99 CAD. It will be sold directly through Sony and at a variety of Sony’s authorized dealers throughout North America.

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New Sony Global Shutter Sensor With 105MP and 100 fps Announced

By Louis Ferreira | Published: September 29, 2025

Sony Semiconductor Solutions to Release the Industry-Leading*1 Global Shutter CMOS Image Sensor for Industrial Use That Achieves Both Approximately 105-Effective-Megapixels and High-Speed 100 FPS Output

Delivering high-resolution and high-frame-rate imaging to contribute to diversified, advanced inspections

Sony Semiconductor Solutions Corporation

Atsugi, Japan — Sony Semiconductor Solutions Corporation (Sony) today announced the upcoming release of the IMX927 stacked CMOS sensor with back-illuminated pixel structure and global shutter. It is the industry-leading*1 sensor that achieves both high-resolution of approximately 105-effective-megapixels*2 and high-speed output at a maximum frame rate of 100 fps*3.

The new sensor product is equipped with Pregius S™ global shutter technology made possible by Sony’s original pixel structure, ensuring high-quality imaging performance with distortion free imaging and minimal noise. By optimizing the sensor drive in pixel reading and A/D converter, it supports high-speed image data output. Introducing this high-resolution and high-frame-rate model into the product lineup will help improving productivity in industrial equipment domain, where recognition targets and inspection methods continue to diversify.

*1 Among CMOS image sensors for industrial use. According to Sony research (as of September 29, 2025).
*2 Based on the image sensor effective pixel specification method.
*3 Frame rate at 10-bit output.

IMX927 CMOS image sensor

Model nameSample shipment date (planned)

IMX927 2.5-type (39.7 mm diagonal) 105-effective-megapixels
stacked CMOS image sensor

Mid-November 2025

With the automation of factories progressing, the need for machine vision cameras that can capture a variety of objects at high speed and high resolution is growing in industrial equipment domain. With its proprietary back-illuminated pixel structure, Sony’s global shutter CMOS image sensors deliver high sensitivity and saturation capacity. Because they can capture moving subjects at high resolution without distortion, they are increasingly being used in a wide range of applications such as precision component recognition and foreign matter inspection. The new IMX927 features a high resolution of approximately 105 effective megapixels while delivering a high frame rate of up to 100 fps*3, helping shorten measurement and inspection times. It also shows promise in advanced measurement and inspection applications, for instance imaging larger objects in high resolution and three-dimensional inspection using multiple sets of image data.

Along with the IMX927, Sony will also release seven products with different image sizes and frame rates. It has also developed a new ceramic package with connector that is compatible with a series of all these products, which allows cameras to be designed with sensors removable from camera modules. This can contribute to streamlining camera assembly and sensor replacement. By expanding its global shutter product lineup, Sony is contributing to the advancement of industrial equipment, where recognition and inspection tasks continue to become ever more precise and diversified.

Main Features
■Global shutter technology with Sony’s proprietary pixel structure for high-resolution and high-sensitivity imaging
The new sensor is equipped with Pregius S global shutter technology. The very small 2.74 μm hat use Sony’s proprietary back-illuminated pixels and stacked structure enable the approximately 105-effective-megapixels resolution in a compact size with a high level of sensitivity and saturation capacity. In addition to inspections of precision components such as semiconductors and flat-panel displays, which require a high degree of accuracy, this feature also enables the capture of larger objects with distortion free, high-resolution, low-noise images. Thereby machine vision cameras can achieve higher precision measurement and inspection processes in a wide range of applications.

■Circuit structure enabling a highly efficient sensor drive that saves power and makes high-speed imaging possible
The new sensor employs a circuit structure that optimizes pixel reading and sensor drive in the A/D converter, which saves power and enables faster data processing. This design makes a high-speed frame rate of up to 100 fps*3 possible, reducing the time to output image data for more efficiency in measurement and inspection tasks. It also shows promise for application in advanced inspections such as three-dimensional inspections, which use multiple image data sets.

■New ceramic package with connector to streamline camera assembly and contribute to stable operation
Sony has also developed a new ceramic package with connector, which is compatible with a series of eight products including the IMX927, making it possible to combine or detach sensors from camera modules flexibly to design cameras. Using this package makes camera assembly easier and streamlines the process of replacing sensors to suit camera specifications. It also has a superior heat dissipation structure, which suppresses the impact of heat on camera performance, contributing to stable, long-term operation.

For details, please see the following website
-IMX927 series product page: https://www.sony-semicon.com/en/products/is/industry/gs/imx927-937.html
-Global shutter technology: https://www.sony-semicon.com/en/technology/industry/pregius.html

IMX927 Series Key Specifications
For more detailed specifications, visit the product page .
Model NameIMX927IMX928IMX929
Image sizeDiagonal 39.7 mm
(Type 2.5)		Diagonal 31.9 mm
(Type 2.0)		Diagonal 28.1 mm
(Type 1.8)
Effective pixels

10,272 × 10,272 (H × V)
Approx. 105.51 megapixels

8,256 × 8,256 (H × V)
Approx.68.16 megapixels

8,224 × 6,176 (H × V)
Approx.50.79 megapixels

Unit cell size2.74 μm （H）× 2.74 μm （V）
Frame rate
(all-pixels readout)

8 bit: 112 fps
10 bit: 102 fps
12 bit: 73 fps

8 bit: 138 fps
10 bit: 126 fps
12 bit: 90 fps

8 bit: 225 fps
10 bit: 201 fps
12 bit: 136 fps

Shutter modeGlobal shutter
Output

SLVS-EC

Color filterMonochrome/BayerMonochrome/BayerMonochrome/Bayer
PackageCeramic package with connector
160 pin × 2, 45 mm × 52 mm (H × V)
Model NameIMX937IMX938IMX939
Image sizeDiagonal 39.7 mm (Type 2.5)Diagonal 31.9 mm (Type 2.0)Diagonal 28.1 mm (Type 1.8)
Effective pixels

10,272（H）× 10,272（V）
Approx. 105.51 megapixels

8,256（H）× 8,256（V）
Approx. 68.16 megapixels

8,224（H）× 6,176（V）
Approx. 50.79 megapixels

Unit cell size2.74 μm （H）× 2.74 μm （V）
Frame rate
(all-pixels readout)

8 bit: 56 fps
10 bit: 51 fps
12 bit: 36 fps

8 bit: 70 fps
10 bit: 64 fps
12 bit: 45 fps

8 bit: 115 fps
10 bit: 102 fps
12 bit: 69 fps

Shutter modeGlobal shutter
Output

SLVS-EC

Color filterMonochrome/BayerMonochrome/BayerMonochrome/Bayer
Package

Ceramic package with connector
160 pin × 2, 45 mm × 52 mm (H × V)

Model NameIMX947IMX949
Image sizeDiagonal 39.7 mm (Type 2.5)Diagonal 28.1 mm (Type 1.8)
Effective pixels

5,136（H）× 5,136（V
Approx.26.37 megapixels

4,112（H）× 3,088（V）
Approx. 12.69 megapixels

Unit cell size5.48 μm  （H） × 5.48 μm  （V）
Frame rate
(all-pixels readout)

8 bit: 423 fps
10 bit: 383 fps
12 bit: 277 fps

8 bit: 811 fps
10 bit: 722 fps
12 bit: 502 fps

Shutter modeGlobal shutter
Output

SLVS-EC

Color filterMonochrome/BayerMonochrome/Bayer
Package

Ceramic package with connector
160 pin × 2, 45 mm × 52 mm (H × V)

Note: Pregius S and its logo are the registered trademarks or trademarks of Sony Group Corporation or its affiliated companies.

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