Taking PureView to the next level

After the tremendous reception deservedly received for the Nokia 808 PureView, our imaging team was perhaps entitled to a holiday.
Instead, though, we sent them back to the lab to work on two things: bringing the technology to Lumia smartphones and delivering a whole new set of improvements.

Carl Zeiss Optics

Optical Image Stabiliser: Barrel shift type

Stabiliser performance: Up to 3EV (8x longer shutter speeds)

Focal length: 3.73mm

35mm equivalent focal length: 26mm for 16:9, 28mm for 4:3

F-number: f/2.0

Focus range: 8 cm – Infinity

Construction: Five elements, one group. All lens surfaces are aspherical

Optical format: 1/3″

The results of this intensive labour are first found in the Nokia Lumia 920.

[NB: If you want to get right into the nitty-gritty, download and digest the white paper. This is the tl;dr version.]

The initial PureView model focused on the problem of digital zoom and perfect details. Phase two of development focuses on low light performance, and adds more practical features that will allow more camera phone users to take better pictures.

The number one camera phone annoyance – fixed

Low light performance has been improved through two particular measures.

First, the sensor type has been changed. A next-generation Back-Side Illuminated sensor is fitted that places the photosensitive area directly beneath the lens, without wires or metal between, as is the case with Front-Side Illuminated sensors. More light reaches the plate, in other words. That’s of critical importance when there isn’t much light around.

http://conversations.nokia.com/2012/09/05/taking-pureview-to-the-next-level/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+NokiaConversations-Posts+%28Nokia+Conversations+-+Posts%29