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View Full Version : Anyone seen a vertical white dashed line like this in a scan Histogram? What's it me


hassiman
14-Aug-2009, 11:03
Hi,

I am scanning Kodachrome using my Nikon Super CoolScan 9000 ED. I am using SilverFast AI which ahs been calibrated using SilverFast's IT8 calibration slide. I am scanning at full 4000 DPI resolution. I noticed that the histogram was diplaying vertical white dashed line ( see attached) Does anyone have any idea what it means and how I might correct the problem?

Thanks
Donald Miller
14-Aug-2009, 16:22
Hi,

I am scanning Kodachrome using my Nikon Super CoolScan 9000 ED. I am using SilverFast AI which ahs been calibrated using SilverFast's IT8 calibration slide. I am scanning at full 4000 DPI resolution. I noticed that the histogram was diplaying vertical white dashed line ( see attached) Does anyone have any idea what it means and how I might correct the problem?

Thanks

Your shadow values are clipped. This is supported by the black regions in the image shown. I would imagine that you do not have detail in those areas.