PureView

Nokia PureView is the branding of a combination of technologies used in cameras of Nokia-branded smartphones, and previously, in phones by Microsoft Mobile. PureView was first introduced with Nokia 808 PureView.
Hardware.
PureView cameras have on-chip image processors performing image scaling with oversampling, giving improved digital zoom and reduced noise. Both are combined with xenon flash, 1080p HD video camera, and high resolution Zeiss all-aspherical 1-group lenses. Unlike Nokia 808, Nokia Lumia 1020 — along with other Lumia PureView smartphone cameras — possess optical image stabilization, which became standard in Lumia PureView bundling. Nokia 808 does, however, compensates with its own exclusive and camera-complementing media features, such as Micro HDMI TV-out, and built-in video editing.
History.
Following the acquisition of the Nokia Devices & Services division by Microsoft, the U.S. software company acquired the PureView name and trademark, but not the related imaging technology, which remained with Nokia, who thereon licensed it to Microsoft.
Since Microsoft's ownership, the technology has only been used in their late-2015 flagship Lumia 950.
In late August 2018, HMD Global reportedly acquired the ownership of the PureView trademark and related assets not under the Nokia ownership.
On the 24 February 2019, HMD Global, the exclusive licensee of Nokia-branded phones, launched Nokia 9 PureView at the 2019 Mobile World Congress in Barcelona.
On the 19 March 2020, HMD Global announced the Nokia 8.3 5G, it is said to feature a 64MP PureView Quad-Camera System with Carl Zeiss Optics.
Reception.
PureView cameras have enjoyed universal critical praise as among the best smartphone cameras on the market, and the brand's willingness to experiment and push boundaries in imaging technology have spawned prime examples, such as 41-megapixel Nokia 808 and Nokia Lumia 1020, which still possess the highest resolution image sensor in any smartphone that have been released to date.