4 ms·
Physics is another issue. It's far hard to aim a photon at the exact correct pixel on a sensor when both the lens and sensor are smaller. With larger glass and
by SkyPuncher 4y ago
Physics is another issue.
It's far hard to aim a photon at the exact correct pixel on a sensor when both the lens and sensor are smaller. With larger glass and sensors, even if something is off slightly, there's a better chance it hits the right pixel.
This is likely more noticeable with chromatic aberration different light colors bend slightly differently. With larger equipment and long lens lengths, there's less separation between colors.
- kuschku 4y agoThough TV cameras have some of the smallest sensors out there, as sensor size also affects lens size. Just compare ENG broadcast sensor size to APS-C/Super35 or Full Frame: https://i.k8r.eu/SC-yYw.png https://i.k8r.eu/SC-yYw.png
- kayfox 4y agoIt should also be noted that an ENG camera typically has 3 sensors and not just one. The BMD Ursa Broadcast used in the above video is an exception, but its also a cinema camera converted to take B4 mount ENG lenses and not built from the ground up to do live broadcast video. Its also from a company that has weird ideas about how broadcast equipment should work.
- kuschku 4y agoSony also builds ENG cameras with single-sensor rolling-shutter bayer pattern based stuff. Which is ridiculous considering how much money they want for that. There's only a handful cameras with three individual sensors with global shutter on the market nowadays, and the price point is expectedly astronomical (~70k USD)
- kayfox 4y agoMost of their broadcast camera system lineup is 3-chip: https://pro.sony/ue_US/products/4k-and-hd-camera-systems https://pro.sony/ue_US/products/4k-and-hd-camera-systems There's a couple exceptions, like the Super-35 HDC-F5500 and HDC-4800.
- kuschku 4y agoMost of the ones you linked are just variations on two different assemblies, and as soon as you look at their otherwise extensive ENG lineup, the situation doesn't get much better, that one also only has the Z750 while the Z450 and X400 have no global shutter. But you're right, they still have a few good options for now :)
- solarkraft 4y agoInteresting and slightly unexpected trade-off. But of course: The situations these are used in tend to be well lit.
- colechristensen 4y agoDigital sensors these days are way better at capturing light, even with much higher resolution video the rest of the camera can indeed shrink a lot, there’s just not much pressure to do so because the market and competition is small and smaller means cheaper means less profit in an already small customer base. But folks are using much smaller equipment for some production work too.
- robomartin 4y ago> Digital sensors these days are way better at capturing light Has the quantum efficiency of silicon improved? How much?
- analog31 4y agoNot quantum efficiency per se, but dynamic range has been improved by the development of sensors with lower readout noise.
- robomartin 4y agoThe statement was that today’s sensors are “better at capturing light”. Not sure signal-to-noise is what the OP meant. Note: I studied CCD and CMOS sensor design some 15 years ago under the scientists who designed a great deal of the sensors that flew in spacecraft. Jim Janesick was one of my instructors. https://www.amazon.com/Books-James-R-Janesick/s?rh=n%3A283155%2Cp_27%3AJames+R.+Janesick https://www.amazon.com/Books-James-R-Janesick/s?rh=n%3A28315...
- mulmen 4y agoWell they said today's sensors, not today's silicon. The favorable reading is that the sensor is considered as a component.
- robomartin 4y ago> The favorable reading is that the sensor is considered as a component. No. It's about materials properties and physics.