I am a little confused, because I want to buy a XH-A1 and offered "only" 1480x1080PX Resolution. My JVC GZ HD7E 1980x1080PX has won the Canon delivers a better picture?
thank you before and Gruss,
Paul
Antwort von Bernd E.:
At a technically good picture is a lot (starting from Lens to processing in the camera) and the calculated number of pixels does not play as crucial role. Look forward to your XH-A1: set correctly, it provides you in any case better images than the HD7.
Antwort von Jack43:
Hello Bernd,
Thank you for your clarifying answer! With the processing, I knew I was not only understand why none of the larger cameras recording in Full HD!
Greetings from Bavaria, Paul
Antwort von WoWu:
It depends einwenig with the sensor (CCD from) and the sensor size. The smaller the chip and the more "pixels" on it, are the smaller connecting structure. it follows that it heats up quickly. More pixels also mean a higher selection rate for identical time frames (25 frames / sec). Therefore, only at a given chip size and a given time slot a limited number of "pixels" read out. In the processing of a pixel CCD at 30 MHz takes about 33 ns. It follows that only about 1.1 Mill pixels / sec can be processed at all. Increasing the clock speed is the part too hot. In addition, each charge in the CCD are moved only by the other store has, until it reaches s.Verstärker. Every move changes the content by photons that remain hanging or hang themselves with remaining photons mix other charges. This changed the result. The more pixels in the sensor, but there are, the worse the results.
It was now very briefly, but I hope it was einwenig statement on the issue.
Antwort von Jack43:
Hello Wolfgang,
I am unfortunately not just a technical "light", but now I understand why it does not depend necessarily on the amount of Pixels! Thank you for your detailed response and a nice evening,
Gruss, Paul
Antwort von gast3:
@ WoWu:
It is not synonymous, so that with the medium HDV tape of this camera is not easy, just as 1440/1080? But that unlike other media more dissolution truth lies inside?
Antwort von WoWu:
Not really, one would have to compress so synonymous synonymous can be stronger than MPEG2 yes to more compression, then the bond issue would be off the table. It is really the time factor in CCD, which makes the problems and the blurring of the signal. The time factor is resolved with larger chips with higher clock speed. JVC has the HD200 720p50 in (after all CCD) synonymous solved only by the fact that they are six A / D converter and take the chips operate with dual outputs. This makes them eligible for the double data rate at the higher clock speed (heat around). But the CMOS sees the course is completely different. As I said, only in the CCD and synonymous only with the small chips are really serious problems.
