Canon Patent JP 2026-135787: Canon RF 12mm F1.4, RF 14mm F1.4, and RF 18mm F1.4 Optical Designs


A recently published Canon patent application (JP 2026-135787) details optical formulas for ultra-fast, ultra-wide full-frame prime lenses, including 12mm F1.4, 14mm F1.4, and 18mm F1.4 designs. While the 14mm F1.4 embodiment serves as the optical foundation for the RF 14mm F1.4 L VCM, the inclusion of 12mm and 18mm variations highlights Canon’s broader optical research into ultra-wide, high-speed optics.

Patent Details

  • Publication Number: JP 2026-135787 (P2026-135787A)
  • Filing Date: February 13, 2025
  • Publication Date: August 25, 2026
  • Applicant: Canon Inc.
  • Core Objective: Minimize focus breathing and suppress optical aberrations across varying focus distances to deliver uniform edge-to-edge sharpness wide open at f/1.4.

Embodiment Highlights

  • 12mm F1.4: An extreme ultra-wide concept pushing field-of-view limits for astrophotography and architectural interiors while maintaining an ultra-fast f/1.4 light-gathering capability.
  • 14mm F1.4: The production-aligned optical embodiment designed to control sagittal coma flare and peripheral distortion.
  • 18mm F1.4: A balanced wide-angle option tailored for documentary, landscape, and gimbal videography, bridging the gap between ultra-wide primes and standard wide options like 24mm.

Technical Takeaways The patent focuses heavily on internal focus group configurations that keep physical lens movement compact while mitigating angle-of-view shifts during video recording. By prioritizing minimal focus breathing and coma correction at maximum aperture, these designs are engineered to support both hybrid cinema applications and demanding stills photography.

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via j-platpat

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Canon RF 45mm F1.2 STM and Canon RF 20-50mm F4L IS USM PZ Received 2026–2027 EISA Awards


Canon RF 45mm f/1.2 STM:
B&H Photo / Adorama

Lenses with very large apertures are attractive, but they usually come with significant price tags. However, Canon has managed to design a standard lens with an impressively bright f/1.2 aperture at an affordable price. The Canon RF 45mm F1.2 STM is an excellent lens for those who want to take sharp portraits with a lovely creamy background blur. It is also very suitable for reportage photography in low light. Despite its brightness, the lens is very portable, measuring just 75mm in length and weighing 346g. This bright standard lens is a great complement to Canon’s affordable zoom lenses.


Canon RF 20-50mm F4L IS USM PZ: B&H Photo / Adorama

The Canon RF 20-50mm F4L IS USM PZ is a true hybrid lens, constructed for both video and stills photography. Thanks to a motor-assisted zoom ring, the lens provides both a smooth zoom action for video, and quicker zooming for stills. Its 20-50mm focal length range and constant f/4 aperture provides huge flexibility. It offers premium image quality, while focus breathing is optically suppressed. Weighing just 420g, the lens offers up to 8 stops of image stabilisation, enabling comfortable hand-held shooting and photography. The Nano USM system provides fast, quiet, and precise focusing. It’s a lens that’s ideal for vlogging, filming interiors, and capturing wide-angle shots and landscapes.

via EISA

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Sigma 17-40mm f/1.8 DC Art Now Available


Sigma 17-40mm f/1.8 DC Art: B&H Photo / Amazon / Adorama

Updated release dates for the Sigma 17-40mm F1.8 DC | Art for Canon RF Mount and renewed Sigma I series (6 models) for L-Mount

Sigma Corporation is pleased to announce the release dates for the Sigma 17-40mm F1.8 DC | Art for Canon RF Mount and the renewed Sigma I series (6 models) for L-Mount.
Sony E-mount versions, initially scheduled for release in May and onwards, are now planned to launch sequentially within 2025. We apologize for the delay and will notify you again as soon as the date is confirmed.

▼Release date:August 7th, 2025
■ Sigma 17-40mm F1.8 DC | Art for Canon RF Mount
■ Sigma 20mm F2 DG | Contemporary for L-Mount(Black / Silver)
■ Sigma 24mm F2 DG | Contemporary for L-Mount(Black / Silver)
■ Sigma 65mm F2 DG | Contemporary for L-Mount(Black / Silver)

▼Release date:September 4th, 2025
■ Sigma 17mm F4 DG | Contemporary for L-Mount(Black / Silver)
■ Sigma 24mm F3.5 DG | Contemporary for L-Mount(Black / Silver)
■ Sigma 90mm F2.8 DG | Contemporary for L-Mount(Black / Silver)

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Canon Developing Ultra-Durable, Fluorine-Free “Dev-02-003” Coating for Next-Generation RF Lenses


Fluorine coating has long been a staple of premium camera lenses, prized for its ability to repel water droplets and resist oils and fingerprints. However, the camera industry is currently facing a significant shift due to impending global environmental regulations. As European agencies and other international bodies crack down on PFAS (polyfluoroalkyl substances, often referred to as “forever chemicals”), the traditional coatings used on optical elements are expected to face strict manufacturing and sales restrictions in the future.

In response to these regulatory changes, Canon’s optical material subsidiary, Canon Optron, is developing a completely fluorine-free lens coating. Currently designated as “Dev-02-003,” this new material aims to provide an environmentally sustainable alternative without sacrificing the performance or durability required by professional photographers.

Overcoming Durability Challenges: Historically, fluorine-free alternatives have struggled heavily with wear and tear. Canon Optron’s previous PFAS-free material, “OR-510,” retained only about 23% of its performance after standard friction testing, making it unsuitable for the rigorous demands of field photography.

The newly developed Dev-02-003 material represents a significant technical breakthrough in overcoming these limitations. According to recent reports, laboratory testing indicates that Dev-02-003 offers exceptional resilience:

  • High Abrasion Resistance: The coating successfully withstands 10,000 abrasive wipe tests with a cloth without peeling or losing its high water-repellent contact angle.

  • Chemical Resilience: It has passed alcohol (ethanol) wipe tests, ensuring it can endure the routine, rigorous cleaning methods utilized by working professionals.

The Future of RF Lenses: As mass production processes are refined, and the coating receives its official commercial designation, Dev-02-003 is expected to become a core feature in next-generation RF lenses. Given the extreme environments encountered in sports, wildlife, and photojournalism, it is highly likely that this sustainable, ultra-durable coating will debut on Canon’s flagship L-series lenses, particularly the professional super-telephoto line.

Much like Canon’s historical success in artificially crystallizing fluorite for high-end optics, successfully pioneering a high-performance, eco-friendly coating represents a proactive technological victory. It allows the brand to navigate upcoming environmental regulations while maintaining the rugged reliability associated with its premium L-series optics.

Canon RF Lenses That Currently Use Fluorine

Zoom Lenses

Prime Lenses

Macro Lenses

Super-Telephoto Lenses

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via DCLife

Posted in Canon Lenses | 2 Comments

Luminar Prime Fall Upgrade 2026


Luminar Prime Fall Upgrade 2026 is now available for pre-order with a 50% off early-bird price. Here’s what’s new:

  • A redesigned experience — Cleaner navigation and a smoother editing workflow. Catalog and Edit are now unified into a single workspace with a redesigned right sidebar, so Presets, Tools, Edits, Info, and Extra tools (including generative AI) are always one click away. No more switching between modes.
  • More realistic Generative AI — Natural textures, believable light, and seamless results. GenErase, GenSwap, and GenExpand now produce more convincing fills, object replacements, and extensions that blend convincingly into the original photo.
  • Up to 25% faster exports — Deliver your finished photos even sooner (some reports note up to ~27% faster on both Windows and macOS).
  • Preset previews up to 4× faster — Discover your perfect look in seconds thanks to significantly quicker preset rendering.
  • Improved performance — Masking now uses up to 33% less RAM for faster, smoother editing, with more efficient resource use during batch work and complex selections.
  • 365 days of Luminar Prime at the best launch price — One year of full access to the new subscription model that replaces the old seasonal Upgrade Passes.
  • Luminar Web: Edit from any browser, wherever inspiration strikes. Yours forever — Browser-based editing (coming Fall 2026) so you can continue work on any computer without installing the app. Included with All Platforms / Max licenses.
  • Fall Upgrade 2026 — Including:
    • Crop 2.0 — AI analyzes the image and suggests multiple finished compositions based on the main subject, balance, leading lines, and visual weight (with helpful overlays such as golden ratio / golden spiral).
    • Atmosphere 2.0 — Much more realistic fog and atmospheric effects that intelligently blend into the scene, responding to light, color, and depth of field for natural spatial integration instead of flat overlays.
    • Enhance 2.0 — A smarter model that reads the photo more precisely, protects highlights better, respects existing colors, and avoids over-processing for more natural results.
    • AI Assistant 2.0 — Describe what you want in everyday language; the assistant recommends the right tools and can apply adjustments for you.
    • Plus other refinements (improved printing options, export with watermarks/frames, etc.).
  • Every new feature: Get every update released during your subscription — yours to keep forever — Features unlocked while your Luminar Prime period is active remain permanently available even if you later cancel.
  • Unlimited AI editing — Restoration, GenErase, GenSwap, GenExpand, and AI Assistant without credits or usage limits for the full 365 days (subject to fair-use policy).
  • Creative Library of Assets — Unlimited access to an ever-growing collection of 2,150+ presets, 500+ LUTs, 400+ overlays, 550+ skies, and 50+ photography courses.

Posted in Canon Software | 4 Comments

Sirui Saturn V2 Anamorphic Lens Coming in September (E/Z/L/X/RF)


Sirui will announce a new Sirui Saturn V2 full-frame anamorphic lens series in September – an update of the current Saturn lineup (E/Z/L/X/RF). Below are some pictures of the upcoming lenses:

via Photorumors

Posted in 3rd Party Lenses | Tagged , | 4 Comments