Nokia Lumia 1020

The Nokia Lumia 1020 (known as Lumia 909 during development^[2]) is a smartphone developed by Nokia, first unveiled on 11 July 2013 at a Nokia event at New York. It runs Windows Phone 8, but is also Windows Phone 8.1 ready.^[3] It contains Nokia's PureView technology, a pixel oversampling (a data binning technique) that reduces an image taken at full resolution into a lower resolution picture, thus achieving higher definition and light sensitivity, and enables lossless zoom. It improves on Nokia's previous versions of PureView by coupling a new 41-megapixel 2/3-inch BSI sensor with optical image stabilization (OIS), and a high resolution f/2.2 all-aspherical 1-group Carl Zeiss lens. The Lumia 1020 became the most advanced camera phone when released in September 2013. It is the successor of theNokia 808 PureView.^{[citation needed]}

In January 2014, Nokia released the ‘Black’ firmware update for the Lumia 1020, adding various new features, including improved image processing in addition to capturing RAW (DNG) files.^[4]

The Lumia 1020 will receive the Lumia Denim software update, but without new features or updates to the system firmware, due to the phone's age.

PureView Pro camera

PureView Pro is an imaging technology used in the Nokia 1020 device. It is the combination of a 1/1.5" large, high resolution 41 mpx image sensor with high performance Carl Zeiss optics. The large sensor enables pixel oversampling, which means the combination of many sensor pixels into one image pixel. PureView imaging technology delivers high image quality, lossless zoom, and improved low light performance (see below). It dispenses with the usual scaling/interpolation model of digital zoom used in virtually all smartphones. In both video and stills, this technique provides greater zoom levels as the output picture size reduces, enabling 4× lossless zoom in full HD 1080p video, 6× lossless zoom for 720p HD. Optical image stabilization is also present to nullify shaking of hands when taking a photo and to allow significantly more light to enter the sensor for better low light photos. It also has an adjustable shutter speed of up to 1/16,000 s.

Some reviewers have noted the camera may exhibit lens flare^[7][8] and minor white balance issues under particular circumstances.^[9][10]

It has a camera startup of 6.1 seconds and a shot-to-shot time of 3.6 seconds for 5 mpx photos and 4.2 seconds for 38 mpx photos.