One of the biggest improvements is that they have managed to reduce the size of the sensor on the device to 70% of the N8's sensor which allows the N9 and future devices to be much slimmer.
In an interview with Damian Dinning from Nokia some of the core features of the Nokia N9 camera
- Industry-first imaging sensor which is FULLY optimised for BOTH 16:9 AND 4:3 images
- Industry-leading Carl Zeiss optics
- Super wide-angle optics – the widest in the industry. Up to as much as 60% more viewing area than other broadly comparable devices
- f/2.2 aperture – largest ever in a mobile device
- Extremely responsive, especially switching from stills to video and vice-versa and shot to shot
- Touch AF for both video and stills
- Full time continuous AF in BOTH video and stills plus face detection
- HD video with stereo audio (still one of very few devices that provide high quality audio recording in video)
- Seamless workflow optimised for speed or editing & sharing
- Zoom in to images directly in the post capture view, edit and share all without leaving the camera – the most seamless mobile imaging experience
- Non-destructive editing of images – go back to the original image at any time. Undo or redo edits even months later
- New high power dual LED flash – 20% more powerful than our previous most powerful LED flash despite its compact size
- Geo tagging with place names rather than just co-ordinates
- AMBR – Automatic Motion Blur Reduction
- Touch to share of images between handsets using NFC technology
Nokia N9 - Photo Samples
Some of the photo samples from the Nokia N9 proves that the improvements on the camera will keep it's users quite happy.
 |  |
 |  |
 |  |
 |  |
 |
Nokia N9 - Video Samples
The N9 captures video at 720p HD. Check out the video sample which follows courtesy of HBblog