LAOWA Argus 28mm F1.2 FF Announced

By Louis Ferreira | Published: May 26, 2023


LAOWA Argus 28mm F1.2 FF: B&H Photo / Amazon

Cytron Japan Co., Ltd. (Headquarters: Shinjuku-ku, Tokyo; Representative Director: Akira Watanabe) has announced the launch of the LAOWA Argus 28mm F1.2 FF, a new camera lens brand from Anhui ChangGeng Optical Technology (Venus Optics). It will be released on June 2, 2023.

“LAOWA Argus 28mm F1.2 FF” has a focal length of 28mm and a bright F-number of F1.2 that can be used for a wide range of shooting purposes, so it can be used not only for daily use in the daytime, but also for capturing precious moments in low light. It is a lens that can From the maximum aperture, it delivers overwhelming resolution and high optical performance.

■ Release overview
Product name: LAOWA Argus 28mm F1.2 FF
mount: SONY FE / Nikon Z / Canon RF / L mount

Suggested retail price: Open price
Estimated market price: Around 110,000 yen including tax
*Estimated market price is the price we estimate. , different from the actual selling price.
Release date: Friday, June 2, 2023 Read More »

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Tamron 90mm f/2 1x Mag and 90mm f/2.8 2x Mag Patents Found

By Louis Ferreira | Published: May 25, 2023

  • Applicant: Tamron Co., Ltd.
    Publication number: P2023072281
    Application number: P 2021184724
    Publication date: 2023-05-24Title
    of invention: Optical system and imaging device
  • Kind Code: A1 An optical system and an imaging apparatus having a larger aperture and a higher imaging magnification can be provided while maintaining a compact size as a whole.
  • As these imaging devices have become more sophisticated and smaller, there has been a demand for their imaging lenses (optical systems) to have higher performance and smaller sizes, and macro lenses are no exception.
  • Macro lenses are required to achieve high optical performance over the entire focal range by suppressing fluctuations in aberrations during focusing, such as fluctuations in spherical aberration and curvature of field. However, most macro lenses on the market today are around F2.8. Even with a zoom lens, it is possible to achieve a similar imaging magnification with a brightness of about F2.8, and there are cases where the zoom lens is used as a substitute for the macro lens. Therefore, there is a growing demand for macro lenses that are smaller, have higher performance, and have higher added value that pursue imaging expressions unique to macro lenses.
  • However, although the optical system disclosed in Patent Document 1 has an F2.0 aperture and is intended to achieve a large aperture ratio, the weight and movement of the focus group are large. It is difficult to improve imaging magnification and focus speed.
  • In addition, in the optical system disclosed in Patent Document 2, in order to further increase the aperture and improve the imaging magnification, another lens group must be configured in order to satisfactorily correct the aberration occurring in the third lens group. It is necessary to increase the number of lenses, resulting in an increase in the size of the optical system.
  • SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an optical system and imaging apparatus with a larger aperture and a higher imaging magnification while keeping the overall size small.

  • Example 1 (90mm F2 life-size macro)
    Magnification 0 0.5x 1x
    Focal length 92.7002 56.4352 38.4725
    F value 2.110 3.200 4.200
    Half angle of view 12.5792 6.5626 3.7783
    Image height 21.633 21.633
    21.633 back Focus 18.500 18.500 18.500
    Optical total length 134.619 134.619 145.676

  • Example 2 (90mm F2 0.8x macro)
    Magnification 0 0.5x 0.8x
    Focal length 92.7001 61.6892 46.4780
    F value 2.1549 3.2000 3.8000
    Half angle of view 12.5935 5.8338 5.7301
    Image height 21.633
    21.633 21.633 Back focus 18.500 18.500 18.500
    Optical total length 136.903 136.903 136.903

  • Example 3 (90mm F2.8 2x macro)
    Magnification 0 1x 2x
    Focal length 87.8766 39.7703 25.9505
    F value 2.9000 5.8500 8.7000
    Half angle of view 12.9523 8.4795 5.1482
    Image height 21.633 21.633
    21.6 33 Back focus 37.877 37.877 37.877
    Optical total length 145.000 145.000 154.112

  • Example 4 (90mm F2.8 1.5x macro)
    Magnification 0 0.75x 1.5x
    Focal length 91.6041 50.1114 35.1898
    F value 2.9100 5.0000 6.5000
    Half angle of view 12.7285 8.6295 5.5211
    Image height 21.633 21.6
    33 21.633 Back focus 53.033 40.589 40.589
    Optical total length 143.520 143.520 154.229

Tamron 17-28mm f/2.8 Di III RXD FE:
B&H Photo /  Amazon / Adorama
Tamron 28-75mm f/2.8 Di III VXD G2 FE:
B&H Photo / Amazon / Adorama
Tamron 28-75mm f/2.8 Di III RXD FE:
Amazon
Tamron 35-150mm f/2-2.8 Di III VXD:
B&H Photo / Amazon / Adorama
Tamron 70-180mm f/2.8 Di III RXD FE:
B&H Photo / Amazon / Adorama
Tamron 28-200mm f/2.8-5.6 Di III RXD FE:
B&H Photo / Amazon / Adorama

Tamron 20mm F/2.8 Di III OSD M1:2（Model F050):
B&H Photo / Amazon / Adorama
Tamron 24mm F/2.8 Di III OSD M1:2（Model F051):
B&H Photo / Amazon / Adorama
Tamron 35mm F/2.8 Di III OSD M1:2（Model F053):
B&H Photo / Amazon / Adorama

Tamron 17-70mm F2.8 Di III A-VC RXD:
B&H Photo / Amazon / Adorama

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New AstrHori 18mm f/8 Probe Images, Sample, and Launch Date

By Louis Ferreira | Published: May 24, 2023

The AstrHori 18mm f/8 Probe for E/ M43/ X/ Z/ RF/ EF/ L mount with a working distance of 5mm will launch on May 29th. AstrHori Rockstar can be found on the Official AstrHori Rockstar Amazon Store.

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New Sony ZV-1 II vlogger Camera Announced

By Louis Ferreira | Published: May 23, 2023

Sony ZV-1 II: B&H Photo / Amazon / Adorama

Developed and designed for carefree, effortless creation, the ZV-1 II from Sony delivers high-quality content in a compact body that handles with ease.

The ZV-1 II’s 18-50mm-equivalent f/1.8-4 wide-angle zoom lens has expanded the frame for content creators. Sleek and lightweight at nine ounces, the camera is ideal for one-handed shooting and also accommodates front-facing video for small groups. The upgraded autofocus features multiple face recognition, ensuring everyone is in focus. The new format also works well with narrow interiors or as a dynamic accent to everyday scenes.

Inside, the ZV-1 II has some familiar imaging attributes in the form of a 20.1MP 1″ Exmor RS stacked CMOS sensor and BIONZ X image processor which contributes to impressively fast performance, ISO sensitivity from 125 to 12800 for video and stills, and large bokeh. The processor powers the Real-Time Eye AF and Real-Time Tracking features for quick and precise focusing and subject tracking, along with an Active Mode image stabilization to steady footage and reduce the appearance of camera shake for smoother takes.

Reviews
Explora

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Significant Samsung T7 4TB Rugged Savings

By Louis Ferreira | Published: May 22, 2023


SSD discounts have been pretty good this year, but this one shouldn’t be missed if you need to transfer files quickly or want to take a large Lightroom library with you on location. The Samsung T7 4TB Rugged is currently discounted at Amazon / B&H Photo / Adorama and can be used on Mac or PC. I bought two myself because the 1TB SSDs I have been collecting are becoming a bit limiting and I bought them around this price point. It’s nice to see the price of large SSDs come down some finally.

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New 7Artisans 24mm f/1.4 Coming Soon

By Louis Ferreira | Published: May 22, 2023


Photorumors came across an ad for an upcoming 7Artisans 24mm f/1.4 lens that should be a great value for manual focus fans. The new lens will be available for Sony E, Fuji X, Canon RF, Canon EOS-M, and Nikon Z mount. 7Artisans products can be found on Amazon.

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