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QTR-Quadtone RIP

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Re: What does microbanding look like?

2015-09-22 by jp432r@...

Getting an answer to my question was part of figuring out whether it was a QTR/printer problem or a carbon printing problem.

The comments that no one on this forum has experienced diagonal lines, only horizontal or vertical ones rather indicates that the problem is in my carbon printing technique.

I'm printing my negs on Pictorico Ultra Premium OHP. In passing I have exposed entirely unprinted bits of film directly onto the carbon tissue and find no lines there.

One thing I have already checked is that the direction of the faint diagonal lines does not correspond the direction in which I've peeled the tissue from the paper sandwich. Sometimes they are parallel to the direction and sometimes they are perpendicular to it.

I am intrigued your statement that "there are several kinds of printing artifacts that can result in diagonal lines on a carbon, regardless of the type of negative." Can you enlarge on that subject?

I will be happy to post a scan of one of my failures just as soon as I figure out how.

JeffR

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