The use of the phone camera has increased a lot, especially to capture everyday events;
Regardless of the final quality we get, it is clear that a section is increasingly important, and while we ask, who is not interested in these shots are clearer and more detailed? Most of the times, people use this section of motives in low light, and internal, to suit the flash terminal on the scene.
High-tech
The most interesting technologies that are being used by manufacturers based on LED, and those that use xenon flash, the latter being the highest rated in comparative analysis. The xenon flashlight was a feature that was expected in the new flagship of Nokia, the N97. But unfortunately for some, has not been, and features a dual LED flash for these purposes. This doesn’t means that it is a bad choice, but it is interesting to understand why this case is like that.
Debate
This technology is usually chosen because it is most suitable for video capture, an excuse not very convincing, because although the Nokia N97 is capable of recording DVD quality video, do not think it's the star of the terminal section, perhaps a hybrid solution (xenon - LED) as used by the Sony Ericsson C905 have been more appropriate.
Within the Finishes we find the same camera, both the Nokia N82 as the N95, but curiously the first opted for a xenon flash, and this makes the result of the images taken with flash on the N82 are higher quality. If you had the opportunity to try other phones with Xenon flash, like Sony Ericsson K850, and it is certainly a very well resolved section. But they are different characteristics that define and determine the choice of this technology and it is very interesting, we will try to review them:
· The Xenon flash is characterized by a brighter light, but in a more specific time, while the LED technology to illuminate the scene longer.
· The Xenon flash requires a large capacitor to operate, but in the case of LED, is very thin, usually 2 mm. Given that space is an important factor in mobile devices, is something to be valued.
· Another aspect to consider is the fragility of the xenon tube, an issue that LED technology is not worried about.
· This flashlight requires much less energy to operate, another important aspect to be mobile.
· The Xenon flash requires a mechanical shutter part for its operation, with the additional cost, the space it occupies and subsequent consumption.
· To capture video in low light LED flash is required.
When taking a picture after another, charging the Xenon flash capacitor takes a respectable time. Returning to the same, the capacitor in the case of xenon, is bigger, and only serves to carry a voltage of about 300v and used once, in the case of LED flash, it takes only 0.7 V (with some more intensity, 2W), but the capacitor is usable for other tasks of the circuitry, such as GPRS transmissions, in the case of xenon flash, its circuitry is independent.
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