Megapixels vs Quality
The Pixavi Blog

Megapixels vs Quality

Digital cameras and image sensors has gone through a phenomenal development the last 15 years. From bulky cameras with low performance, to the high quality image sensors which fit inside your smartphone, capable of HD video and image capture. However, the amount of megapixels is not the most important factor when choosing a digital camera.

Andreas Parr Bjørnsund
May 18, 2015

NB! The BARTEC PIXAVI range of mobile devices was recently updated with improved cameras!

Digital cameras and image sensors has gone through a phenomenal development the last 15 years. The first digital cameras had no more than 1 megapixel, very low light sensitivity and slow shutter speed. The cameras were slow, bulky, and hard to use. Today, the camera on most cameras and even smartphones, is much better than the most expensive digital cameras just 5 years ago. In 2013, more than 1 billion electronic devices with digital cameras were sold globally. That is more than 2,7 million devices per day. Technological development enables photographers take much better images, more easily and quickly. Image capture and processing software has helped users, both during the image shot, but also after the image is taken, to take great images with small cameras.

With all these devices being used every day, the number of images taken has also skyrocketed. People use a camera in more innovative ways than ever. But what do you need to take a great picture? We can reveal that the number of megapixels of the camera is not the sole contributor to the image quality taken by a camera. This is a common mis-belief, which is fueled by tech specification driven marketing. Anyone with camera experience, or anyone owning a DSLR camera, knows that the aperture, white balance and light sensitivity are more important than the number of megapixels. In fact, there are many factors contributing to a good image such as shutter and sensor speed, aperture, light sensitivity, ISO, software and lens quality. For example, in low light conditions, a high megapixel camera, with a low light sensitive sensor, will give you blurry and noisy images. More megapixels does not mean higher quality images, more importantly, you need the right mix of sensors, optics and megapixels to be able to take great images.

 

graph

8 MP

For the Impact X and Gravity X, we chose a high end 8 megapixel image sensor with high quality optics. In addition we have the latest and greatest image processing technologies installed. The image sensor used in BARTEC PIXAVI products proved to be the best all round camera for our devices. It performed well in low light as well as illuminated scenes. The auto focus, image size and speed is excellent. Another reasons to have 8 megapixels is that higher megapixel cameras are bigger, take up more storage space, and use more battery. You need to compromise, and the 8 megapixel camera in the new products will give you the best images possible in a hazardous area.

 

The size of each pixel, and the total size of the image sensor contributes to the big picture. The image processing after the image has been captured is often more important. New, smart cameras has technologies that automatically chooses the correct settings as well as having support for noise reduction and AWB (auto white balance). Lastly, the human eye cannot notice the difference between a 8 Mpixel and 100 Mpixel image, therefore shooting an image in higher resolution is not necessary for most applications. Also, remember that most computer screens and printers capabilities are 2 megapixels or less. 8 megapixels is therefore more than enough to take great images.

Quality

IMG_2489 copy_blur

The BARTEC PIXAVI range of cameras has fast auto focus lenses, capable of focusing where the users point on the screen as well as recognizing faces. Images and video can easily be transferred to a computer or network either wirelessly or using the USB cable. No driver installation needed. The camera can provide a wide range of file types and settings. The user can easily switch between different modes of image capture and video. You can also download 3rd party apps for other formats and filetypes. Many camera apps are available on various app stores. The camera specifications, supported image sizes and file types are listed below, for more info, visit the mobile devices product page. Also, check out the “tips and tricks to taking images in hazardous areas” guide. The BARTEC PIXAVI range of mobile devices was recently updated with improved cameras!

Spec

  • 1/3″ 8 Megapixel CMOS image sensors
  • 3264 x 2248 pixels
  • Advanced OmniBSI2 technology
  • Lens size is 1/3″
  • Backside illumination on sensor
  • Dynamic range is 68.7 dB @ 8x Gain
  • 30 FPS at 1080p and 60 FPS at 720p
  • F.number of 2.8
  • Auto focus range down to 7 cm
  • FOV Vertical 46.2 degrees
  • FOV Horizontal 61.6 degrees

GravityX_Top_view

Resolutions

  • EIS1080p
  • 1080p
  • EIS 720p
  • EISQ 1080p
  • Q1080p
  • EISVGA
  • VGA
  • QVGA
  • 8 Mpixel

File types supported

  • Jpg
  • Tiff
  • PNG
  • RAW
  • Mpg4
  • H.264 AVC
  • AVI
  • MKV