My XH A1 has a sensor size of 1 / 3 inches. The SonyEX series, and the shoulder camera PMW 320, a 1 / 2 inch sensor. The difference is in the millimeter range, but the Lowlightfähigkeit increases enormously. If you compare the proportions with a full frame Canon 5D, the size difference is still minimal. Why is that?
I will hang on the same one: Why have the for example the Sony models, though as to exactly the same size sensor size, a Lichtemfpfindlicheren sensor? This information would have to "chip Lichtempflindlichtkeit" not synonymous additionally note? I think what interested me the chip size smaller if the sensor is much more modern and Lichtempflicher? (Aside of the DoF Size)
Antwort von WoWu:
But since put in it to have lots of questions. First you have to remember once, if your camera has a sensor or, as the EX, 3 sensors. Then you have to sometimes consider whether the camera 1440 or real makes 1920th What really counts is no preference in this regard. If you have only one sensor, instead of 3 and makes the same resolution, it must ever (almost) three times the amount s.lichtempfindlichen sensors. This makes the pixels smaller and (Pixels are not real) take correspondingly less light. The areas between the pixels that receive no light anyway, but remain about the same, what the difference changed again (in proportion). Then there is the further that an interlaced scan on it anyway, half the sensor size for the cache and not to the light absorption is available. Therefore, a field must be synonymous during the selection phase of the other field are exposed to even come to identical light levels. A field is thus exposed on the whole it is 40 ms. Finally, it is still on the filling factor of the sensor. How many photons so he must take to reach about 80% of its charge state. And how many electrons are thereby generated by heat and other problems. It is only then the signal to noise ratio, which is said to be minimal, because you can then step higher, thus resulting in improved light sensitivity. For reinforced always synonymous if there are numbers like-3db (or above) is. With the fill factor and the relationship to the Noise, You name synonymous Resolutiondes the image, ie the bit depth. You see, already, sensitivity to light depends on a number of different parameters. For low-light ability is not synonymous least a question of processing speed, how fast can I edit a picture and analyze. It is not just a question of the sensor, if synonymous substantially. For me, an indication of the filling factor is indeed a very important indication of the light response ... more important, as sizes, because that is the only way a very rough guide.
Antwort von HansMaulwurf:
@ Wowu: In your posts you always learn again what to hats off!
