Cross hatching appears in a scanned black and white image

To illustrate some of the concerns here: On the right side of the picture below is a detail from my own scan from typical black-and-white negative film. If you compare the two, you can see that in the scan on the left, somehow many of the intermediate gray tones are missing, and there is a prominent stipple type of pattern. I also looked at a scan of a portrait on high contrast black-and-white slide film and even that isn’t as posterized as the image on the left.

When you re-scan the image, specifically check the bit depth setting, because scanning software terminology can be confusing and misunderstood. What you are looking for is to save a grayscale image, and you want to verify that whatever the setting is called, it’s saving at 8 bits per channel or 16 bits per channel. Some scanning software has an option labeled “black and white” which literally means black, white, and nothing in between (one bit per channel, or on/off). That 1 bit/channel setting is intended for text/line art documents, not photos, and if used on photos, the scanning software may translate gray shades into literal black and white by applying a dither pattern. The “cross hatching” you see does suggest a moiré pattern caused by pattern interference. I am able to see the moiré pattern in your original file on my display. (How visible a moiré pattern is depends on the difference between the frequencies of the pattern in the pixel grid of the image and the pattern in the pixel grid of the display or printer, so the pattern may be more visible or less visible depending on the display and printer.)

By the way, do you know what the film stock is? Is this the same type of film you’ve scanned before, or is this a special graphic arts type of black and white film?

Thanks for all the information. Rescanning will be difficult, and I am not sure necessary. If I take the image that was corrected in LR with the 10 masks and export a tiff (or print) I see lines. If I make a virtual copy of the file and do a reset so that there are no masks and export a tiff, there are no lines even if I add sharpening. If I click off all the mass and export from the corrected version I still see lines. Very Odd. I guess I wilhave to go back to the original scan and try again. 

So Strange, I check my output settings and they are exactly the same as you use. 

Hmm. Well the bottom line, is of course it is coming out on the print. I Don't see the lines in LR or PS, and only after I export it as a Tif do I see it on the monitor. It could be doiing something with my monitor but would not concern me much if it didn't show up on the print, but it does. 

I thought I already posted this but I am not seeing it in the thread. I am posting again. Thank you for you help. 

https://www.dropbox.com/scl/fi/purclami5mhor276ifk0v/5212.1.-Edit.dng?rlkey=5g398p1njyigycewx5wqse34u&dl=0

Here is the DNG. I can open the file in PS and don't see and of the cross hatching there until I save a tif. Even without sharpening there is still some faint cross hatching. I have scanned other black and white negatives with the same camera and film and scanner and never had this issue. 

The more sharpening I use the stronget it gets.

By @Nicholas26902923jzk0

This kind of thing always boils down to some kind of moiré (interference patterns) between two sets of pixels - either image pixels : screen pixels, or original pixels : resampled pixels.

I see this is an extremely grainy image, which will exaggerate the effect, and obviously sharpening will exaggerate it further.

But please do as Per suggests and share the original if possible.

If you don't mind sharing the original, export a DNG  (which will include all your edits).

If the DNG is smaller than 48 MB, you should be able to attach it to a post.

If attaching doesn't work, put it on Dropbox or some other file sharing service and post the link here.