Can you expand on this? I am unclear how a dark red piece of mounting card means that no red filter is needed? It may be that I can't work out how the red piece of card is used to act as a substitute for the red filter. Thanks
Originally Posted by MartinP
On a separate point and not related to MartinP's quote I am at a loss to understand what the relevance of a combination of Y and M giving a red colour has to the need to safely protect the paper. A combination of Y and M is used in dual filtration exposure so cannot protect the paper, can it?
I assume that AgX's post talking about log 1 was actually saying that the strength of the max red combination of Y and M isn't enough to give the kind of protection needed for paper so therefore doesn't qualify as a safety filter. Am I right?
Maybe it was only me who found the reference to Y and M giving max red confusing as an answer to whether this combo qualifies as a safety filter