Songraw 50mm f/1.2 Announced

The Songraw 50mm f/1.2 “Moonlit” full-frame AF lens for Sony E, Nikon Z, and L-mount was officially announced at NAB 2025. Details Below:

  • First Chinese 50mm F1/2 full-frame autofocus mirrorless camera lens
  • For Sony E, Nikon Z, and L mount
  • Aluminum body
  • Weight: 900g/1.98 lbs
  • Two switches: AF/MF and de-click option
  • Lens design: 15 elements in 10 groups, including two aspherical lens elements
  • Aperture diaphragm with 13 blades
  • Minimum focusing distance: 52 cm/20.4 in
  • Filter size: 72mm
  • Shipping will start at the end of April
  • Price between $950 – $1,100
  • SongRaw showcased the lens at NAB 2025, emphasizing its “Moonlit” branding, inspired by its low-light performance



via cined, Photorumors

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Sony 50-150mm f/2.0 GM Coming Soon


Sony FE 28-70mm f/2 GM: B&H Photo / Amazon / Adorama

Sony will soon launch a Sony 50-150mm f/2.0 GM to complement the Sony FE 28-70mm f/2 GM. It will be heavier than an f/2.8 lens, but Sony has done a great job removing weight from lenses. It is expected to be around $4,000 and could come during Sony’s next press conference.

via weibo

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7Artisans AF 40mm f/2.5


7Artisans showed a new lens at NAB, the 7Artisans AF 40mm f/2.5. We should get more details soon.

  • H45×L62mm

via asobinet

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Sigma 70-200mm F2.8 DG DN OS Patents Found


Sigma 70-200mm f/2.8 DG DN OS Sports
B&H Photo / Amazon / Adorama

The Sigma 70-200mm F2.8 DG DN OS has already been announced, but the patents were just filed and found.

overview

  • [Publication number] P2025043459
  • [Release date] 2025-04-01
  • [Name of invention] Large aperture ratio telephoto zoom lens
  • [Application date] 2023-09-19
  • [Applicant]
    [Identification number] 000131326
    [Name or company name] Sigma Corporation
  • According to the present invention, there is provided a large aperture ratio telephoto zoom lens having high optical performance, which is compact and lightweight while being equipped with an anti-vibration mechanism and a quiet and high-speed focus mechanism.
  • [Background Art]
    [0002]
    In recent years, the number of pixels in digital cameras has increased and pixel density has increased, and so zoom lenses with high optical performance are in demand. In particular, in order to resolve images up to high spatial frequencies, it is desirable to reduce various aberrations. However, in general, the larger the aperture ratio, the more difficult it becomes to suppress aberrations.
  • [0003]
    In addition, the larger the aperture ratio, the larger the lens diameter, making it difficult to reduce the weight of the lens. In particular, in a telephoto zoom lens with a large aperture ratio, the focus lens group tends to be heavy, and it becomes necessary to use a large actuator to achieve quiet and high-speed focus drive. However, using a large actuator goes against the weight reduction of the zoom lens. Therefore, by making the focus lens group smaller and lighter, quiet and high-speed focus drive is realized without making the actuator larger (for example, Patent Document 2).
  • [0004]
    Similarly, the larger the aperture ratio, the heavier the anti-vibration lens group tends to be, making it necessary to use a large actuator. However, by making the anti-vibration lens group smaller and lighter, it is possible to achieve high tracking performance of the anti-vibration drive (movement of the imaging position by shifting the anti-vibration lens group) without making the actuator larger (for example, Patent Documents 1 and 2).
  • [0009]
    The present invention has been made in consideration of the above-mentioned circumstances, and has as its object to provide a large aperture ratio telephoto zoom lens having high optical performance, which is equipped with an anti-vibration mechanism and a quiet and high-speed focus mechanism, while also being compact and lightweight.


Example 1

  • Focal length: 72.10-194.00
  • F-number: 2.91-2.92
  • Angle of view: 32.93-12.18
  • Image height: 21.63
  • Overall length: 222.00

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via asobinet

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SG-Image 25mm F1.8 Lens Coming Soon


SG-Image announced a 55mm f/1.8 a few months ago. Their next lens will be an SG-Image 25mm f/1.8 for X and E Mount. SG-Image lenses are hard to find in the US, but its designs should show up soon on Amazon.

via FujiAddict, Weibo

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OL: Viltrox AF 50mm f/2 Review – Very Consistent And Very Sharp


Viltrox AF 50mm f/2: B&H Photo / Amazon

Optical Limits posted its full Viltrox AF 50mm f/2 review, which you can read in full here, or check out the excerpt below:

…The Viltrox AF 50mm f/2 FE is not only very consistent but also very sharp across the relevant aperture range. The center quality is excellent straight from f/2 and the outer image field is easily very good. The peak performance at f/4 is truly impressive. Image distortions and lateral CAs are very low. Axial CAs are a somewhat noticeable at f/2, but it’s nothing out of the ordinary. The quality of the bokeh may not be the greatest of them all, but it’s quite decent for a fifty.

Mechanically, the lens stays true to its “Air” designation. It’s very lightweight, yet the execution is very decent for a consumer grade lens. The engineered plastics are of good quality and the focus ring turns smoothly. The AF is quick and silent. Weather sealing is not provided…

Pro

  1. Surprisingly sharp even at f/2
  2. Lightweight and compact
  3. Bang for your bucks

Con

  1. Focus shift
  2. Vignetting a bit high

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