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Nokia Lumia 1020

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Through Smartphone and Micrometre

In January 2014, Nokia released the "Lumia Black" firmware update for the Lumia 1020, adding various new features, including improved image processing in addition to capturing RAW (DNG) files. The Lumia 1020 also received the Lumia Denim software update, but without new features or updates to the system firmware, due to the phone's age. It is not officially eligible for upgrading to Windows 10 Mobile.

A prototype codenamed McLaren (previously leaked as Goldfinger) was planned to be the successor to the 1020, but was cancelled before official launch.

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 MP 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 1080p video and 6× lossless zoom for 720p video. 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 and minor white balance issues under particular circumstances.

The camera needs 6.1 seconds to start up and 3.6 seconds between photo shots for 5 MP photos and 4.2 seconds for 38 MP photos.

Like the Nokia 808 (and the N8 and N82 before them), the Nokia Lumia 1020 has a Xenon flash.

PureView Pro specifications

Sensor

The Nokia Lumia 1020 has a 41.3-megapixel BSI CMOS image sensor, 1/1.5-inch (2/3-inch) image sensor format with a total of 7712 × 5360 pixels. Maximum image size at a 4:3 aspect ratio is 7136 × 5360 pixels (38.2 MP); maximum image size at a 16:9 aspect ratio is 7712 × 4352 pixels (33.6 MP). Pixel size is 1.12 μm. Sensor size is 8.80×6.60 mm. Crop factor 3.93×.35 mm equivalent focal length: 25 mm for 16:9, 27 mm for 4:3. f/2.2

Compare

The Nokia 808 has a 41.5-megapixel FSI CMOS image sensor, 1/1.2-inch image sensor format with an active area of 7728 × 5368 pixels, totalling over 41 MP. Depending on the aspect ratio chosen by the user, it will use 7728 × 4354 pixels (33.6 MP) for 16:9 images, or 7152 × 5368 pixels (38.2 MP) for 4:3 images with the default camera app. Pixel size is 1.4 μm. Sensor size is 10.67 × 8.00 mm. Crop factor 3.2×.35 mm equivalent focal length: 26 mm, 16:9 | 28 mm, 4:3. f/2.4

Lens

Carl Zeiss optics with f/2.2 focal ratio. Focal length: 7.2 mm: 35 mm equivalent focal length: 25 mm @ 16:9 aspect ratio, and 27 mm @ 4:3 aspect ratio. Construction: Six elements in one group. All lens surfaces are aspherical, partly extreme aspheric, one high refractive index, low-dispersion glass mould lens.

Optical image stabilisation — includes new type of barrel shift actuator, which enables moving a heavy and complex full-lens assembly.

Shutter

Mechanical shutter with short shutter lag.

Microphones

Lumia 1020 has high quality microphones for stereo recording of video's audio. Like in Nokia 808, Rich Recording technology (aka High Amplitude Audio Capture (HAAC)) is used that can capture sounds at the loudness level of up to 140 decibels without distortion.

Processing

On-chip image processor performing image scaling with oversampling, giving lossless zoom: 4× for full-HD 1080p video with on-chip video processor performing image resolution processing with over 1 billion pixels per second, enabling the use of all pixels for improved image noise and dynamic range.

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