Cool: Sony Patent Reveals Eye-Controlled Autofocus Viewfinder!

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A new Sony patent, published on October 15, 2025, describes a technology that would allow photographers to control autofocus points using their eyes while looking through the viewfinder — a concept reminiscent of Canon’s eye-control AF found in the Canon EOS R3 and Canon EOS R1.

The patent, titled “Viewfinder and Imaging Device,” outlines a system that detects the photographer’s eye movement to select the AF area. It uses a light-emitting unit to project detection light onto the cornea and analyzes the reflected signal to determine gaze direction. However, Sony’s design appears to address a major challenge with such systems — ensuring accuracy without increasing the size of the viewfinder or camera body.

The document explains that previous eye-tracking systems required larger optical paths and could be obstructed by eyelids or corneal variations, leading to unreliable autofocus. Sony’s new approach aims to confine the light emission to a narrow zone around the pupil, maintaining precision while keeping the viewfinder compact.

If this concept reaches production, it could mark Sony’s first implementation of true eye-controlled AF — something that could revolutionize shooting speed and precision for mirrorless cameras like the future Sony a9 IV.

via Asobinet

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Viltrox 50mm f/1.4 PRO lens now available for preorder at BHphoto too

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The new Viltrox 50mm f/1.4 PRO lens is now available for preorder at BHphoto, Amazon, Viltrox, Pergear.

There is a review of this lens at SonyAlphaBlog and he concludes

It is a very good 50mm F1.4 with a budget price; very good to excellent sharpness, very good ergonomics, bokeh, background blur, AF , very low CA, good resistance to flare
Its main weakness is its weight, one of the heaviest in its category

ThePhoBlographer writes:

Viltrox packed weather resistance, good classic image quality, fast autofocus, and high quality into this body. Truly, there’s nothing to dislike about this new lens except that I wish it were just a bit smaller.

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Sony Tidbits…

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Do You Really Need the FX2 Instead of A7IV? | Sony FX2 Review

Today deals at Amazon, BHphoto, Adorama, Amazon DE, Amazon UK, Amazon FR, Amazon IT, FotoErhardt DE, FotoKoch DE.
Beyond the Flash: Constant Lighting Photography | Westcott Wednesday (Explora)
Summer Photography Survival Guide: Stay Cool & Keep Your Gear Safe (42West).
Lunar Eclipse with the Sony 100-400mm (Mads Peter).
Sony’s Best Portrait Lens is From Over a Decade Ago (ThePhoBlographer)
3 Essential Lens Adapters for the Sony A6700 (Fotodiox).
Planning the Perfect Costa Rica Photography Trip (42West)
Illuminate Wedding Photographs with Versatile Outdoor Lighting (Explora)

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Sony Alpha group. Sony A1 group. Sony A9 series group. Sony A7r series group. Sony A7s series group. Sony A7 series group

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Speculation about upcoming Sony GM lens refreshes: Is the 100-400mm GM next?

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Since everyone is always speculating about what Sony will release next, I’ve put together a small table. With the Olympic Games coming up, the 100–400mm and the 400mm look like strong candidates for a “GM II” version. Especially the 100–400mm, which Sony promoted heavily for sports photography. Of course, an update to the 24mm would also be interesting…

Focal Length / Type GM I – Release Date GM II – Release Date Gap between I & II Time since II Release
16–35mm F2.8 GM 31 May 2017 29 Aug 2023 6y 3m 2.1y
24–70mm F2.8 GM 31 Mar 2016 27 Apr 2022 6y 1m 3.5y
70–200mm F2.8 GM OSS 7 Sep 2016 13 Oct 2021 5y 1m 4.0y
85mm F1.4 GM 3 Feb 2016 28 Aug 2024 8y 7m 1.1y
100–400mm F4.5–5.6 GM OSS 19 Apr 2017
24mm F1.4 GM 20 Sep 2018
400mm F2.8 GM OSS 27 Jun 2018
135mm F1.8 GM 26 Feb 2019
600mm F4 GM OSS 11 Jun 2019
12–24mm F2.8 GM 7 Jul 2020
35mm F1.4 GM 4 Feb 2021
50mm F1.2 GM 16 Mar 2021
14mm F1.8 GM 20 Apr 2021
50mm F1.4 GM 21 Feb 2023
300mm F2.8 GM OSS 7 Nov 2023
50–150mm F2.0 GM 26 Feb 2025

On average, GM lenses are replaced every 6.5 years. What do you hope to get next?

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