Video: How video recordings affect the infrared filter in the iPhone 4S

[vimeo] http://vimeo.com/31412311 [/ vimeo]

   A few tens of minutes ago, we were telling you that an infrared filter was implemented in the iPhone 4S, which significantly improves the pictures taken with our terminals. Those from CameraTechnica they did some tests to demonstrate how this filter works and I think that in the images of the video clip above you have the most relevant proof of how everything is configured. From the clip you can see that the iPhone 4S does not show when an infrared sensor is activated thanks to the new filter implemented by Apple and the quality of the pictures you have demonstrated here.

As shown, the embedded 4S filter does a pretty good job of blocking IR light. But assuming we're not interested in long term careers as TV remote photographers, what is the impact of an IR filter on an actual image? When IR light is allowed to pass through to the sensor, the IR light contaminates the channels (mostly the red channel) with information that was not visible in the original scene. The result is an image with a color cast.

The quality of pictures and video clips is undoubtedly much better on the iPhone 4S and for some this improvement will matter a lot when choosing a smartphone.