If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Global shutter
Here there ia aome discussion about a rumoured new sensor with
global shutter: https://petapixel.com/2020/10/15/can...ing-on-global- shutter-camera-and-quad-pixel-af-report/ In the comments somebody is writing "Blackmagic, Canon and Sony have made cine cameras with global shutter for years." So do these sensors with global shutter already exist, and if yes, why aren't they in digital (still) cameras? -- Alfred Molon Olympus 4/3 and micro 4/3 cameras forum at https://groups.io/g/myolympus https://myolympus.org/ photo sharing site |
#2
|
|||
|
|||
Global shutter
On 2020-10-15 23:42, RichA wrote:
On Thursday, 15 October 2020 at 15:45:51 UTC-4, Alfred Molon wrote: Here there ia aome discussion about a rumoured new sensor with global shutter: https://petapixel.com/2020/10/15/can...ing-on-global- shutter-camera-and-quad-pixel-af-report/ In the comments somebody is writing "Blackmagic, Canon and Sony have made cine cameras with global shutter for years." So do these sensors with global shutter already exist, and if yes, why aren't they in digital (still) cameras? -- Alfred Molon Olympus 4/3 and micro 4/3 cameras forum at https://groups.io/g/myolympus https://myolympus.org/ photo sharing site I wonder if full sensor read-out take a lot more power? IME should be no different - esp. for CMOS sensors. The 'strobe' (signal from the controlling electronics) captures the entire image for the exposure period at one go. With a shutter angle of 180° (typical film setting that can be emulated in a digital sensor), there would be oodles of time to then read the sensor, esp. with DMA transfer. Possibly a special to type memory transfer scheme (buffer on sensor chip, thence DMA to camera memory thence to storage (card)). -- "...there are many humorous things in this world; among them the white man's notion that he is less savage than the other savages." -Samuel Clemens |
#3
|
|||
|
|||
Global shutter
On 2020-10-16 22:53, RichA wrote:
On Friday, 16 October 2020 at 12:40:45 UTC-4, Alan Browne wrote: On 2020-10-15 23:42, RichA wrote: On Thursday, 15 October 2020 at 15:45:51 UTC-4, Alfred Molon wrote: Here there ia aome discussion about a rumoured new sensor with global shutter: https://petapixel.com/2020/10/15/can...ing-on-global- shutter-camera-and-quad-pixel-af-report/ In the comments somebody is writing "Blackmagic, Canon and Sony have made cine cameras with global shutter for years." So do these sensors with global shutter already exist, and if yes, why aren't they in digital (still) cameras? -- Alfred Molon Olympus 4/3 and micro 4/3 cameras forum at https://groups.io/g/myolympus https://myolympus.org/ photo sharing site I wonder if full sensor read-out take a lot more power? IME should be no different - esp. for CMOS sensors. The 'strobe' (signal from the controlling electronics) captures the entire image for the exposure period at one go. With a shutter angle of 180° (typical film setting that can be emulated in a digital sensor), there would be oodles of time to then read the sensor, esp. with DMA transfer. Possibly a special to type memory transfer scheme (buffer on sensor chip, thence DMA to camera memory thence to storage (card)). Seems like the size of the sensor would increase or the pixels would need to shrink to maintain resolution which would mean lower performance. No need for that if the data transfer speed is high enough. Get a real news reader. -- "...there are many humorous things in this world; among them the white man's notion that he is less savage than the other savages." -Samuel Clemens |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Global Warming and what you can do to against it | Eric Stevens | Digital SLR Cameras | 2 | January 2nd 10 03:24 PM |
Global Warming and what you can do to against it | jaf | Digital SLR Cameras | 2 | December 31st 09 08:37 PM |
Global Warming and what you can do to against it | HEMI-Powered[_3_] | Digital SLR Cameras | 1 | December 31st 09 03:56 AM |
Global Warming and what you can do to against it | Jim Bob | Digital Photography | 10 | December 29th 09 12:55 AM |
Global Warming and what you can do to against it | [email protected] | Digital Photography | 0 | December 18th 09 08:06 PM |