Digital BW, The Print

The reason that the green channel has lower noise is that green typically
has twice as many pixels as the other colours. So noise from this sensor
should be amenable to simply downsizing the image so that each image pixel
represents say four camera pixels.

On 18 May 2012 22:24, Paul <roark.paul@...> wrote:

>   However, in working up my latest B&W landscapes, I found that the green
> channel, with contrast enhanced, could be used to achieve a lower noise sky
> than the red filtered channel by itself.  So, would a single red filter
> over the B&W camera really provide a lower noise sky?


[Non-text portions of this message have been removed]