What do the dashed vertical lines in Histogram mean?

[hassiman]

Hi,

Please look at the screenshot attached showing the pre-scan histogram of a Kodachrome slide scanned at 4000 dpi with the software set for Kodachrome and the scanner profiled using tha SilverFast IT8 calibration taget slide. What does this mean and how do I correct the problem if one exists?

[LSI_Morales]

Dear Hassiman,

As you can see by yourself we did not get any image. Without an illustration is hard to tell.

Cheers

[hassiman]

Here you go....

What does this indicate and how is it corrected?

This is a screenshot showing white dahed vertical line in Histogram

sc4 resized.jpg (99.81 KiB) Viewed 1468 times

[hassiman]

Dear Hassiman,

As you can see by yourself we did not get any image. Without an illustration is hard to tell.

Cheers

Image scanned from 35mm Kodachrome slide3. Sliverfast set for SCREEN 4000 - DPI 4000 - 48 Bit color - Kodachrome - IT8 Calibrated with SF IT8 Kodachrome IT8 35mm target

Another example:

Another example of dashed lines in histogram

Histo_01re-sized.jpg (160.21 KiB) Viewed 1468 times

[LSI_Morales]

Dear hassiman,

Those lines appear in the histogram when using a fixed point for the densitometer. I guess you might have placed a fixed point which is showing you those lines, if you close the extra window (deleting the point) you will see how the lines disappear.

cheers