Sony FX8 Rumors: Will the 12K Sensor Pave the Way for A7R6? 4K120p Requires Cropping Raises Concerns

Recently, information regarding Sony’s new CineLine camera, the FX8, has gradually surfaced. According to documents circulated by foreign media, the FX8 will feature a full-frame sensor capable of 12K resolution, with a horizontal pixel count of 12,032 and an effective pixel count of approximately 81 million (calculated at a 16:9 aspect ratio).

Sony FX8 Rumors: Will the 12K Sensor Pave the Way for A7R6? 4K120p Requires Cropping Raises Concerns

However, some analyses suggest that the actual total pixel count of the sensor may be 96 million, designed with a 3:2 aspect ratio, which aligns with Sony’s practice of reporting effective pixels in cinema cameras based on a 16:9 calculation.

In terms of core performance, the FX8 is said to support dual native ISO and enhanced sensitivity technology. The dual native ISO settings are 500 and 2000, with enhanced sensitivity reaching 8000, and under these three settings, it can achieve approximately 16 stops of dynamic range, a crucial metric for professional video shooting.

Sony FX8 Rumors: Will the 12K Sensor Pave the Way for A7R6? 4K120p Requires Cropping Raises Concerns

In terms of recording specifications, the FX8 will support 8K 30p and 4K 60p video in both full-frame and Super 35 modes, with formats covering 17:9 and 16:9. Notably, to achieve 4K 120p recording, the FFc mode must be enabled, which results in a slight crop of approximately 1.04 times, with an imaging area of about 34.2mm x 19.2mm.

However, reports also indicate that the FX8 is unlikely to offer Open Gate full-frame mode recording and will not support the aspect ratios of anamorphic lenses, which differs from the current functionality of some cinema cameras; the specific reasons for this remain to be confirmed.

Sony FX8 Rumors: Will the 12K Sensor Pave the Way for A7R6? 4K120p Requires Cropping Raises Concerns

If the FX8 indeed adopts this high-resolution sensor, following Sony’s strategy of sharing sensor designs between cameras and cinema machines, the same 96 million pixel full-frame sensor is likely to be quickly applied to the next generation of Alpha camera products.

However, it is more likely to appear in future high-resolution photo models such as the A7R VI, rather than in the video-focused A7S IV. The reason is that, although the FX8 sensor has an extremely high resolution, its 4K 120p high frame rate shooting requires cropping, whereas the existing A7S III can achieve 4K 120p recording in full-frame mode. From a pure video shooting perspective, if the A7S series continues to use such sensors, it may actually represent a regression in high frame rate performance.

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