Actual Objektivbedingte Resolutionvon HDV camcorders
Frage von Frank N: März 2006
Has anyone dealt with the times Resolutionvon lenses on HDV camcorders? I can not imagine simply that the Lenses on these mini-chips that can represent the chip Resolutiontheoretisch possible resolution at all. When an HDV camcorder has 1/3-Inch-Chips means that when 16/9-Format a chip area of 5.23mm x 2.94 mm (Basics to see Wikipedia, "Charge-coupled device" and the Pythagorean theorem). This in turn means chip in a vertical resolution of 1080 pixels that lie per mm chip length ~ 367 pixels (vertical direction).
In photography, we evaluated the resolution capability of lenses with line pairs per mm for each (one black and white line next to each other). At 367 pixels / mm, the lens ~ 180 line pairs / mm would be able to map. I think that is absolutely impossible, for photographers know that very good s.Rand Lenses come in the middle to about 70lppmm, usually only about 40th
If you look at the durchrechnet at a professional camcorder with 2/3-Inch-Chip, it looks even more realistic: pix in 1080, the chip could represent ~ lppmm 100th Although this is still a lot, but there are so much better used synonymous Lenses.
Once someone has dealt with the topic? I have somewhere a flaw?
Antwort von grovel:
Without going to recalculate here somehow I say theoretically, yes, there must be a miscalculation. Because there are plenty of digital Kompaktfotokameras which achieve Resolutionvon 5 and more megapixels. Synonymous, and if the lens normally ensures that the actual Resolutionein is, two megapixels at the address given, they still reach a much higher resolution than you here disputing with video cameras.
Nevertheless, the biggest flaw in the lens HDV camcorders, no doubt, however, that the officially declared the Resolutionunterhalb lies vswas has to do with the chip.
In this article: http://forum.slashcam.de/viewtopic.php?p=125650 # 125,650 You can find this all the () inflow into philosophical discussions.
Antwort von fg:
Well, the sense of digital compact cameras was a few months ago why I was with Lens-employed at all resolutions again. For digital SLR cameras with its approximately 18x24-mm chips are resolutions of 6 to 8 MP with good lenses, and photography with flash or tripod makes sense. For compact cameras with their smaller chips is really everything that goes beyond 4 MP, nonsense. Then there are purely advertising features. Lenses for the performance did not reach this figure.
Antwort von fg:
The fact is that the gain in HDV Resolutiontatsächlich visible on a HDTV.