Canon 200-500mm f/5.6 Patent Found

By Louis Ferreira | Published: October 9, 2025


Canon has been turning out lens patents at a blistering pace. Just the other day, I did a post of numerous patents, and now there is one more.

overview

  • [Publication number] P2025150145
  • [Release date] 2025-10-09
  • [Title of invention] Zoom lens and imaging device
  • [Application date] 2024-03-27
  • [Applicant]
    [Identification number] 000001007
    [Name] Canon Inc.
  • A zoom lens that is small, lightweight, and has high optical performance is provided.
  • BACKGROUND ART
    Zoom lenses are expected to be small and lightweight, and to have high optical performance over the entire zoom range.
  • However
    , in the zoom lens of Patent Document 1, the refractive power of the third lens group is weaker than that of the second lens group, and the effective diameter of the lens closer to the image side than the third lens group tends to be larger, making it difficult to reduce the weight of the zoom lens.
  • The present
    invention provides a zoom lens that is small and lightweight and has high optical performance over the entire zoom range, and an imaging device equipped with the same.


Example 1

  • Focal length: 206.00-485.00
  • F-number: 5.77
  • Half angle of view: 6.00-2.55
  • Image height: 21.64
  • Total length: 345.00
  • Back focal length: 48.83


Similar: [Publication number] P2025150157

via asobinet

Posted in Patents | Tagged | 9 Comments

Canon 20-40mm f/2.8, 10-30mm f/4 APS-C, 28-400mm F3.5-6.3 IS, 28-400mm f/4-8 IS, 50-150mm f/2.8, 70-180mm f/2.8, 50mm f/1.2, 35mm f/1.8, and 65mm f/1.8 Patents Found

By Louis Ferreira | Published: October 8, 2025


Several new patents have been found for Canon RF lenses that you can check out below: Read More »

Posted in Canon Lenses, Patents | Tagged , , , , , , , | 3 Comments

Amazon Prime Day is Here Again With New Savings

By Louis Ferreira | Published: October 7, 2025


Amazon Prime Day is here and there are many savings to take advantage of, and as usual, I will add to this list throughout the day as I find more. Please shop through our links throughout the day to support the site. Your support counts whether it is through a general link to Prime Day savings or something specific.

Storage and Memory Cards

WANDRD

Batteries, Battery Banks, and Chargers

Apple

Posted in Deals | 5 Comments

New TTARTISAN 14mm f/2.8 ASPH.

By Louis Ferreira | Published: October 3, 2025


TTARTISAN 14mm f/2.8 ASPH.: Amazon / B&H Photo

The TTARTISAN 14mm f/2.8 ASPH. was announced, and it is now available on Amazon.

  • Ultra Wide-Angle Excellence: Capture stunning 114° ultra-wide perspectives with the TTARTISAN 14mm f/2.8 for rf mount full-frame lens, ideal for vast landscapes, architecture, and tight interior photography.
  • Stunning Night Shots: With its 8-pointed starburst effect and f/2.8 aperture, the TTARTISAN 14mm f/2.8 ASPH lens shines in low-light conditions, allowing you to capture the magic of city nights and starry skies.
  • DUAL ASPH Optical Design: Advanced Optical Design: Engineered with 13 elements in 10 groups including dual aspherical elements, this TTARTISAN 14mm f/2.8 rf Lens achieves exceptional edge-to-edge sharpness and nearly zero distortion.
  • All-Metal Construction: Built with aerospace-grade 5052 aluminum, the TTARTISAN 14mm f/2.8 is designed to withstand rugged use. Its robust, precision-crafted body ensures reliability during travel, outdoor adventures, and demanding shooting conditions.
  • Precision MF System: Enjoy complete creative control with the TTARTISAN 14mm f/2.8’s smooth and accurate manual focus mechanism. Includes a 77mm filter holder (NOTE: use an ULTRA-THIN filter to maintain image quality)
  • 【Compatibility System】 It is compatible with Canon RF mount cameras like EOS R RP R5 R5C R6 R6 Mark II R3 R8 and R7 R10 R50 R100


Posted in 3rd Party Lenses | Tagged , , | 7 Comments

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 Canon Accessories | Tagged , , | 9 Comments

7Artisan 10mm f/2.8 II Fisheye Now Available

By Louis Ferreira | Published: September 28, 2025


The 7Artisan 10mm f/2.8 II Fisheye, which we first covered here, is now available for purchase on B&H Photo and Amazon.

Improvements:

  • Wider angle lens, it now reaches 185°
  • New design
  • Sharper images compatible with 40MP cameras
  • Fluorescent scales

Posted in 3rd Party Lenses | Tagged , , , | 7 Comments