AstrHori 18mm F5.6 APS-C Shift Announced

By Louis Ferreira | Published: September 12, 2025

AstrHori 18mm F5.6 APS-C: B&H Photo

This Sony E-mount AstrHori 18mm f/5.6 Shift Lens is a versatile tool for photographers who want to capture wide scenes with minimal distortion. Built for APS-C sensors, when the lens is straight, it acts as a wide-angle prime lens, perfect for capturing expansive scenes. With 6mm of shift and 360° of rotation, the lens excels at architectural photography, rendering entire buildings and interiors with minimal distortion. Additionally, the design features one high refraction lens and two low dispersion lenses, ensuring excellent image quality with sharp, high-resolution photos. This fully manual lens allows photographers to take complete control of focus and settings, making it ideal for learning and building manual photography skills.

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Tamron 28-70mm F2, 25-200mm F2.8-5.6, and 25-100mm F2.8 Patents Found

By Louis Ferreira | Published: September 11, 2025


Patents were found for 3 new lenses from Tamron, including the new Tamron 25-200mm f/2.8-5.6 that development of was announced the other day as well as a Tamron 28-70mm f/2 and a Tamron 25-100mm f/2.8. You can read the patent below:

overview

  • [Publication number] P2025131290
  • [Release date] 2025-09-09
  • [Title of Invention] Zoom lens and imaging device
  • [Application date] 2024-02-28
  • [Applicant]
    [Identification number] 000133227
    [Name or company name] Tamron Co., Ltd.
  • To provide a high-performance zoom lens that has a large aperture ratio, is compact overall, and has excellent correction of various aberrations.
  • [Background Art]
    [0002]
    Imaging devices using solid-state imaging elements, such as digital still cameras and digital video cameras, are widely used. There are various types of such imaging devices, including digital still cameras, digital video cameras, broadcast cameras, surveillance cameras, and vehicle-mounted cameras. For all of these imaging devices, there is a strong market demand for zoom lenses that have a large aperture ratio, a compact overall system, and high optical performance.
  • [0005]
    However, the technology described in Patent Document 1 has difficulty in miniaturizing the zoom lens because the combined positive refractive power of the first to fourth lens groups is weak. Furthermore, the negative refractive power of the second lens group is too strong compared to the positive refractive power of the first lens group, making it difficult to reduce the lens diameter of the first lens group. Thus, in order to solve these problems, the prior art leaves room for further consideration in terms of the power arrangement, imaging magnification, lens configuration, etc. of each lens group.


Example 1

  • Focal length: 28.8361-67.9005
  • F-value: 2.0600
  • Half angle of view: 37.7855-16.8751
  • Image height: 21.6330


Example 2

  • Focal length: 25.7043-96.9898
  • F-value: 2.9082-2.9109
  • Half angle of view: 41.9883-11.9873
  • Image height: 21.6330


Example 3

  • Focal length: 25.7546-193.9096
  • F-value: 2.9057-5.8078
  • Half angle of view: 42.1987-6.0975
  • Image height: 21.6330


Example 4

  • Focal length: 25.7546-67.8990
  • F-value: 2.9145-2.9111
  • Half angle of view: 41.6631-16.8781
  • Image height: 21.6330

via asobinet

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Tamron 25-200mm F2.8-5.6 G2 Development Announced

By Louis Ferreira | Published: September 10, 2025


[Development Announcement] Starting with a 25mm F2.8 wide-angle lens. A high-magnification zoom lens with improved optical and AF performance. 25-200mm F2.8-5.6 G2 (Model A075) for Sony E-mount
Tamron Co., Ltd. (President and CEO: Shogo Sakuraba; Headquarters: Saitama City), a comprehensive manufacturer of optics, announces the development of the 25-200mm F/2.8-5.6 Di III VXD G2 (Model A075) (hereinafter referred to as 25-200mm F2.8-5.6 G2), a high-magnification zoom lens for Sony E-mount full-frame mirrorless cameras.

Product name25-200mm F/2.8-5.6 Di III VXD G2 (Model A075)
for Sony E-mount
release dateAround autumn 2025
Suggested retail priceto be decided

Product overview
The Tamron 25-200mm F/2.8-5.6 Di III VXD G2 (Model A075) is the successor to the highly acclaimed 28-200mm F/2.8-5.6 Di III RXD (Model A071). Tamron, a pioneer in high-magnification zoom lenses, has continued to evolve. To celebrate its 75th anniversary, the 25-200mm F2.8-5.6 G2 extends the wide-angle end from 28mm to 25mm, while maintaining a 200mm telephoto end, while maintaining a compact size. In addition to improved imaging performance, the high-speed, high-precision VXD (Voice-coil eXtreme-torque Drive) linear motor focus mechanism also improves AF speed and tracking performance. With a maximum magnification ratio of 1:1.9 at the 25mm wide-angle end, half-macro photography is also possible. Despite its compact and lightweight design, this lens supports creative photography without compromising on performance. Experience the power of this next-generation, all-purpose, high-magnification zoom lens, aimed at a wide range of users, from beginners to professionals.

Product features
1. An evolved high-magnification zoom lens – the second-generation 25-200mm F2.8-5.6 G2.
2. A compact high-magnification zoom lens for everything from everyday snapshots to creative work.
3. Exceptional imaging performance beyond what you’d expect from a high-magnification zoom lens, capturing every detail in portraits.
4. Equipped with a VXD for high-speed, high-precision AF, capturing even the quick movements of sports and pets.
5. Maximum magnification of 1:1.9, with impressive close-up shooting capabilities up to half macro .
6.Compatible with TAMRON Lens Utility™, expanding the possibilities of video and photography – easy AF/MF switching.
7. Highly convenient and easy-to-use lens design, smooth and easy-to-use zoom and focus rings
8. Most full-frame mirrorless lenses are standardized with a φ67mm filter diameter.

*As this product is still under development, specifications, appearance, and performance are subject to change without notice.
*This product is developed, manufactured, and sold under a license agreement with Sony Corporation in accordance with licensed E-mount specifications.

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Sigma Post Launch Coverage For The Sigma AF Cine Line 28-45mm T2 FF, 20-200mm F3.5-6.3 DG Contemporary, 135mm F1.4 DG Art, and 35mm F1.2 DG II Art

By Louis Ferreira | Published: September 9, 2025

Sigma AF Cine Line 28-45mm T2 FF:
B&H Photo / Amazon / Adorama
Sigma 20-200mm F3.5-6.3 DG | Contemporary:
B&H Photo / Amazon
Sigma 135mm F1.4 DG | Art:
B&H Photo / Amazon / Adorama
Sigma 35mm F1.2 DG II | Art:
B&H Photo / Amazon / Adorama

Sigma AF Cine Line 28-45mm T2 FF, Sigma 20-200mm F3.5-6.3 DG Contemporary, Sigma 135mm F1.4 DG Art, Sigma 35mm F1.2 DG II Art Video Reviews

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Sigma Announces World’s First 20-200mm 10x Zoom Lens for Full-Frame Mirrorless Cameras

By Louis Ferreira | Published: September 9, 2025


Sigma 20-200mm F3.5-6.3 DG | Contemporary: B&H Photo / Amazon

Sigma Announces World’s First 20-200mm 10x Zoom Lens for Full-Frame Mirrorless Cameras
Ronkonkoma, NY, September 9, 2025 – Sigma Corporation of America, the US subsidiary of Sigma Corporation (CEO: Kazuto Yamaki. Headquarters: Asao-ku, Kawasaki-shi, Kanagawa, Japan), is pleased to introduce the Sigma 20-200mm F3.5-6.3 DG | Contemporary lens for full-frame mirrorless cameras, available in late September 2025. It is the world’s first 10x zoom lens to begin with an ultra-wide 20mm focal length designed for full-frame mirrorless.

The Sigma 20-200mm F3.5-6.3 DG | Contemporary is a unique all-in-one zoom lens covering ultra-wide to telephoto in a single compact lens. Given its compact size, it’s rare to have a focal range that allows the photographer to shoot quickly and easily between expansive landscapes and establishing scenes, to close-up details or action shots. This lens’s 20mm starting range is much wider than the average high-power zoom lens, and is a feat of engineering weighing in at only 550 grams* in a 4.5 inch body. Ideal for travel photography and everyday documentation of life’s moments, this lens is the perfect all-around lens for any photographer.

* Measurements are for L mount.

A maximum magnification ratio of 1:2 is achieved at a focal range of 28mm to 85mm. At 28mm, one can capture a broad background to emphasize depth, while at 85mm the background can be blurred extensively for a clean look. Even at the telephoto end of 200mm, a magnification ratio of 1:3.3 still enables close-up shooting.

Swift, accurate autofocus is driven by Sigma’s HLA (High-response Linear Actuator) motor, allowing for fast subject acquisition and tracking.

The optical design, which properly positions four aspherical lenses, one FLD glass element, and three SLD glass elements, combined with an internal mechanism that precisely maintains each zoom group, enables high performance across the entire zoom range despite the high zoom ratio. Aberrations are thoroughly corrected, and flare and ghosting are kept to a minimum.

The Sigma 20-200mm F3.5-6.3 DG | Contemporary lens will be available in late September at authorized Sigma dealers in the US for Sony E-mount and L-Mount for a retail price of $999 USD. Read More »

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Sigma Announces 35mm F1.2 DG II | Art Lens, a New and Improved Successor to its High-Performance Prime

By Louis Ferreira | Published: September 9, 2025


Sigma 35mm F1.2 DG II | Art: B&H Photo / Amazon / Adorama

Sigma Announces 35mm F1.2 DG II | Art Lens, a New and Improved Successor to its High-Performance Prime
Ronkonkoma, NY, September 9, 2025 – Sigma Corporation of America, the US subsidiary of Sigma Corporation (CEO: Kazuto Yamaki. Headquarters: Asao-ku, Kawasaki-shi, Kanagawa, Japan), is pleased to introduce the Sigma 35mm F1.2 DG II | Art lens for full-frame mirrorless cameras, available in late September 2025. It is designed as the successor to the Sigma 35mm F1.2 DG DN | Art released in 2019, and follows in the footsteps of the ultra-fast, high-performance 50mm F1.2 DG DN | Art lens released last year.

The Sigma 35mm F1.2 DG II | Art, evolving from the original 35mm F1.2 and answering the need for a more compact lens to pair with mirrorless cameras, now features a much smaller footprint, comparable in size to the 35mm F1.4 DG DN | Art. Autofocusing performance has been upgraded, and overall optical quality has also been improved. With its bright F1.2 aperture, the lens is ideal for nightscape photography in addition to portraiture, landscapes, street photography, and many other genres that embrace the 35mm focal length.

Thorough correction of axial chromatic aberration and sagittal coma flare contributes not only to the sharpness of the image plane, but also to the bokeh effect. The lens delivers beautiful bokeh without color fringing, double-line bokeh, or any other irregularities from its maximum aperture. The 11-blade rounded diaphragm maintains a circular bokeh shape even when the aperture is stopped down.

As a result of the optical and mechanical design incorporating the latest technology, the new 35mm F1.2 DG II | Art is significantly smaller and lighter than the previous model. The filter diameter has been reduced by two sizes from 82mm to 72mm; the overall length of the lens has been shortened by approximately 20%, and the weight has been reduced by approximately 30%.

Additionally, focusing performance surpasses that of the previous model by adopting a floating focus configuration that moves two focus groups independently. Adopting the dual HLA (High-response Linear Actuator) system, this lens has two focus groups that are each driven with individual linear motors. The floating focus system also minimizes focus breathing, making the lens suitable for video recording.

The Sigma 35mm F1.2 DG II | Art lens will be available in late September at authorized Sigma dealers in the US for Sony E-mount and L-Mount for a retail price of $1,549 USD. Read More »

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