It is not the first time that this has happened. The more modest camera model assumes a responsibility to reveal a new technology that will eventually be taken over by more glamorous models. Thus it came to pass, that the EOS400D played the role of guinea pig. It was the first Canon SLR system with integrated sensor cleaning. With this service as a cornerstone of its current cutting edge cameras, the EOS 400D paved the way for other entry level SLR products from Canon. Some minor changes and more than 2-megapixel resolution helps to distinguish them from the EOS 350D, which inherits its good quality, good price ... and some open questions on the improvement of its predecessor.

It was inevitable and necessary. I refer, of course, to the inclusion of the cleaning system sensor that Canon has developed and for the first time, has installed an SLR. Apart from the 10-megapixel or price differences, there is no doubt that the EOS 400D, theResponse from the company on a claim for an automatic dust-cleaning system, the photographer to concentrate solely on photography.

Perhaps the new users attach to first place in the world of interchangeable lens cameras (SLR) is not more important to focus on this detail, and offered better value for money from the cameras. However, with the inclusion of the cleaning system, Canon has managed to beat or kill two birds with one stone dust spots: First, tomore competitive with other manufacturers already offering this feature, and tempting more automatic compact camera users to the SLR fold.

That is why, given the striking similarities in the EOS 400D with its predecessor, in addition to the new cleaning mechanism the current SLR landscape is changing.

The aforementioned cleaning system is based on two separate actions for the same purpose. On the one hand, the sensor-or rather, the Low Pass Filter, has a special coating that seeks Prevent dust particles that attaches to it.

Secondly, it is the low pass filter, just before the sensor, which, under the control of the self clean sensor vibrating device. A procedure that is strongly reminiscent of the filters used in all its SSWF Olympus digital SLR cameras. As if that were not enough, the EOS 400D the ability to remove a photo reference, via software on your computer, additional imperfections in your photos.

This cleaning is doneWhen you turn on the camera, and takes less than one second. It can also be manually activated by a simple cause pressure on the shutter release prior to the start of a photographic moment. Of course, the cleaning system can be activated at any time. Moreover, we can always raise the mirror to perform a manual cleaning, the old way.

The lens that came with the basic EOS 400D kit, the Canon EF-S 18-55 mm F3.5-5.6. You should try to avoid prolonged exposure of theCMOS to the environment as this will also help keep things dust free.

Tests of the new cleaning system with a more challenging dirt have occurred. Deliberately placing dust particles on the sensor surface, the vibration could not complete eliminate all dust. In this case you would have to resort to manual cleaning.

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