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March 7, 2012

Nokia 808 PureView: your questions answered (part 2)

This is the second part of the the Nokia 808 PureView virtual Q&A held by Nokia Connects for Mobile World Congress 2012. Earlier this week, we answered questions from you guys all about PureView technology. Today, Damian Dinning answers all those questions we didn’t get round to in the session itself. Have a look and see if he’s answered yours!

via RafeB

Q: How long before we see this tech from other suppliers?

A: There were three significant challenges which we needed to overcome to create the camera in the 808 PureView:

1. Super high resolution sensor with greate low light performance

2. Incredible optics which can resolve the detail from the 41mp sensor, get this wrong and there’s not point in making it.

3. an image processign architecture that can handle over 1 billion pixels per second when recording video as well as the algorithms to retain the optimal detail captured with the high resolution sensor and optics.

Q: How powerful is the single LED is for video recording? Does the camera unit use the LED flash in stills as well?

A: The LED is extremely bright. The challenge with LEDs now for video given the light source is very small is how to increase brightness without making it very uncomfortable for the subject. The LED can also be used as a torch. For stills it’s used only as a focus assist lamp (there is a user setting now to disable that function if you prefer). Of course for stills the xenon flash is the light source. We expect it to provide at least double the flash range of the Nokia N8.

Q: Is this technology compatible with current ‘zoom’ technologies e.g. Deep Zoom?

A: If I have understood your question correctly Deep Zoom is a technology for viewing images, not capturing them.

Q: Does this phone support RAW processing or any way to get a full 41mpx photo such as on an Nseries?

A: RAW in a digital camera is easier to handle as typically images have to pass through a PC, whereas RAW on a smartphone brings a whole host of end to end experience challenges, which results in some kind of compromise in the experience somewhere. We do however provide full resolution images that correspond to the aspect ratio in use as well as a reduced compression setting.

Q: Does the video recording use the initial accelerometer sensor position (the position the phone was when the it started recording) for setting the videoclip’s orientation?

A: Videos are always recorded in landscape.

Q: What about Panorama shots? Is Panorama mode back in PureView camera app?

A: We are still investigating this…

Q: The “Pure View” teaser mentioned “Pure Depth” will this mean increased depth of field for mobile users?

A: We were actually referring to the zoom capability, but I can see how you made the connection.

Q: N8 has ‘What will you do with it?’ promo. It was great. What’s the 808’s tag line?

A: Not yet announced.

Q: If I record a video for 15 minutes, at full/max, highest definition, how many bytes will it consume?

A: In 1080p at 30fps the 808 requires approximately 150mb/minute of recorded footage

Q: Does the Nokia 808 support macro mode?

A: Yes as close as 15cm but also with full zoom unlike many optical zooms

Q: Is the size of the camera in a way set in stone, or do you expect to be able to bring the size down for future devices, or would that mean taking the maximum megapixel amount down?

A: The size of the module is largely dictated (although not exclusively) by the size of the sensor.

Q: What is the material used for body, camera lens protector unit, and does it have a removable battery and stereo speakers?

A: Polycarbonate for main body with a ceramic-like feel to it. The glass over the display is 2.5D Gorilla glass (curved at the edges). Gorilla glass is also used to protect the camera. Side buttons/switches and the camera bezel area is polished stainless steel. Battery is removable. Audio is recorded in stereo but there is a single speaker for playback in the device.

Q: What is the file size of a 41MP image, on average?

A: It depends on the selected compression level. Normal compression level max resolution images are typically 6-12mb and lower compression can be as much as 20-25mb.

Q: Is there any new technology to improve image stabilization on video mode?

A: Some improvements.

Q: Taking into account the size of the sensor and the huge amount of megapixels this means that the pixels are quite small…is this not a bad idea regarding noise in low light conditions? Also, does the 808 give any improvement in video stabilization technology and does this supports long exposures, making it suitable, for instance, for astro timelapsing?

A: Pixels are 1.4 microns. Oversampling is extremely effective in reducing/eliminating noise depending on the conditions. Re shutter speed, those specs are not yet finalised.

Q: And regarding  exposure, how long it can be? Suitable for astrophotography?

A: Not yet finalised

Q: How large is the image sensor?

A: 1/1.2″

Q: Any indications of shot-to-shot times in the various resolutions?

A: Less than a second typically in 5mp mode and around 2-3 seconds in max resolution mode, very similar to the N8 in the case of full resolution.

Q: Is it possible to choose the image compression ratio on this device?

A: Yes, two settings

Q: What does  Belle feature pack 1 actually bring and will it be available on other phones?

A: Some phones, but exact details have not yet been announced. Main improvements are new web browser, secure NFC, Dolby surround sound playback over normal headphones, updated widgets and a number of usability refinements, plus of course all new gallery and camera including integration of sharing options.

Q: Is the camera technology inside expandable? Should we expect for next year 81 or 101 Mpx, more sharpness etc?

A: Sorry, but we can’t comment on future product plans

Q: Would you call the 808 a “niche phone”? If yes, who is Nokia’s target here? In terms of customer segmentation. How does Nokia describe the “808 user”?

A: We see the appeal of capturing incredible photos and videos covering a wide range of users, hence the development of  a new camera UI to provide extremely easy video and photo shooting out of the box.

Q: Does the 808 have image stabilizer for videos?

A: Yes, sw based.

Q: Is the 808 phone capable of editing .mov content?

A: There is a trimmer included for video editing, which is the most commonly used video editing capability

What do YOU think of the Nokia 808 PureView? Let us know @Nokia_Connects! Also, look out for our upcoming posts from the virtual Q&A sessions on the Lumia 610 and Lumia 900.