Re: 5DSR Low ISO DR 1.5-2 stops better than 1DX ...
RobDickinson wrote:
\' The new sensor will capture 14 stops of DR (just like the 5D III) .\'
alundeb wrote:
R.N Clark at clarkvision.com defines \"sensor dynamic range\" as the ratio between full well capacity at lowest ISO and read noise at highest ISO, at the pixel level. That definition gives the 5DIII 14.7 stops of dynamic range.
An Imaging Resource review of the 5D3 says that its total dynamic range is not much less than the Nikon D800 but goes on to demonstrate that the 5D3\'s shadow noise makes much of that range unusable. Their quality dynamic range figures more closely match the clear Nikon/Canon low ISO dynamic range difference.
Indeed the Sensorgen data show that the 5D3 low ISO read noise is more than 5 times that of the D800. By ISO 800 the 5D3 and D800 have about the same low read noise values.
The anecdotal quote that Rob repeated above goes on to say that the 5Ds has much less read noise than the 5D3 which might yield a better quality dynamic range to use Imaging Resoure\'s term. Lets hope. I remember reading the same comment about the 7D2\'s low iso read noise compared to the 7D but haven\'t seen dramatic difference in the test data yet. I\'ll add that 7D2 users seem happier in general than did 7D users.
Re: 5DSR Low ISO DR 1.5-2 stops better than 1DX ...
RobDickinson wrote:
\' The new sensor will capture 14 stops of DR (just like the 5D III) .\'
alundeb wrote:
R.N Clark at clarkvision.com defines \"sensor dynamic range\" as the ratio between full well capacity at lowest ISO and read noise at highest ISO, at the pixel level. That definition gives the 5DIII 14.7 stops of dynamic range.
An Imaging Resource review of the 5D3 says that its total dynamic range is not much less than the Nikon D800 but goes on to demonstrate that the 5D3\'s shadow noise makes much of that range unusable. Their quality dynamic range figures more closely match the clear Nikon/Canon low ISO dynamic range difference.
Indeed the Sensorgen data show that the 5D3 low ISO read noise is more than 5 times that of the D800. By ISO 800 the 5D3 and D800 have about the same low read noise values.
The anecdotal quote that Rob repeated above goes on to say that the 5Ds has much less read noise than the 5D3 which might yield a better quality dynamic range to use Imaging Resoure\'s term. Lets hope. I remember reading the same comment about the 7D2\'s low iso read noise compared to the 7D but haven\'t seen it in the test data yet.
Feb 10, 2015 at 05:35 PM
Previous versions of Jeff Nolten's message #12852760 « 5DSR Low ISO DR 1.5-2 stops better than 1DX ... »
