A Photography forum. PhotoBanter.com

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.

Go Back   Home » PhotoBanter.com forum » Digital Photography » Digital Photography
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

Global shutter



 
 
Thread Tools Display Modes
  #1  
Old October 15th 20, 08:45 PM posted to rec.photo.digital
Alfred Molon[_4_]
external usenet poster
 
Posts: 2,591
Default 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  
Old October 16th 20, 05:40 PM posted to rec.photo.digital
Alan Browne[_2_]
external usenet poster
 
Posts: 696
Default 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  
Old October 17th 20, 02:19 PM posted to rec.photo.digital
Alan Browne[_2_]
external usenet poster
 
Posts: 696
Default 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

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Forum Jump

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 04:24 PM
Global Warming and what you can do to against it jaf Digital SLR Cameras 2 December 31st 09 09:37 PM
Global Warming and what you can do to against it HEMI-Powered[_3_] Digital SLR Cameras 1 December 31st 09 04:56 AM
Global Warming and what you can do to against it Jim Bob Digital Photography 10 December 29th 09 01:55 AM
Global Warming and what you can do to against it [email protected] Digital Photography 0 December 18th 09 09:06 PM


All times are GMT +1. The time now is 01:15 PM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 PhotoBanter.com.
The comments are property of their posters.