Utilizing an 18.2MP 1/2.3" Exmor R CMOS sensor and BIONZ X image processor, the HX99 is able to produce high-resolution stills and UHD 4K video with notable clarity and smooth tonality. The sensor employs a back-illuminated design, which allows it to achieve reduced noise levels along with a native sensitivity range to ISO 3200 that can be extended to ISO 12800 for working in low-light conditions. The sensor and processor also provide a continuous shooting rate of 10 fps for up to 10 consecutive frames in a burst.
Additionally, the HX99 is the first HX-series camera capable of recording UHD 4K video, at either 30p or 24p frame rates, as well as Full HD video. 4K video uses full sensor pixel readout to record approximately 1.6x times the required information, and this oversampling process helps to deliver greater clarity along with reduced moiré and other artifacts.
ZEISS Vario-Sonnar T* 30x Zoom Lens
Covering wide-angle to super telephoto perspectives, the built-in 30x ZEISS Vario-Sonnar T* lens spans a 24-720mm equivalent focal length range. Five aspherical elements are incorporated in the optical design, which reduce spherical aberrations throughout the zoom range, and a T* anti-reflective coating helps to control lens flare and ghosting for increased contrast and color neutrality.
Complementing the optical design, Optical SteadyShot image stabilization is also used to minimize the appearance of camera shake. An Intelligent Active Mode is also available to reduce blur common to shooting video while moving. Also aiding in achieving sharp imagery, Fast Intelligent AF employs an optimized spatial object detection algorithm to quicken focusing speeds, and Eye AF can be used to automatically detect and focus on the eyes of the main subject.