skibum5 wrote: speedmaster20d wrote:
FPN cannot be removed by subtracting dark frames, pattern is fixed but values are random (White). It will get worse by subtraction because noise power is additive.
It depends, from what I\'ve read people have had some success removing certain forms of the banding since it has been, to some extent, constant enough frame to frame so that it actually did improve things overall. Apparently none of the horizontal banding is amenable to this but certain forms of the vertical banding are. There has been some speculation that the type of vertical banding the 5D3 may well be the type somewhat amenable to this. I\'ll see.
Noise is random, there is no such thing as \"constant noise\" that is called an offset.
May 02, 2012 at 03:35 PM
Previous versions of speedmaster20d's message #10599483 « 5d3 shadows much better than thought? »
