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In a message dated 1/9/00 3:23:20 PM, email@example.com writes: >My nikon film scanner allows for manual exposure >adjustment to change scan density or color cast. >Even in high bit mode. This scanner needs to do >an auto exposure pass before preview anyway to get >good results. The "analog gain" allows one to >tweak this if necessary. However each frame gets >it's own exposure, not a standard one. This makes >sense as the scanner cannot capture the entire >dynamic range of the film itself. So it tries to >find the "best range" to scan. Specialized film scanners (and drumm scanners) do indeed attempt to capture the appropriate d-range, making them difficult to use with ICC profiles, unless it is though special application by the scanner software, to account for this. Generally table based conversions are used instead. I was referring to flat bed scanners. > >Even the scanwizard software for my micortek >flatbed allows manual change in exposure before >the actual scan. I agree that moving these >adjustments from the defaults would make it hard >to profile. I'm not sure we are discussing the same thing here; this is most likely a setting used to convert the raw scan to the final scan, not an analog adjustment to the hardware. C. David Tobie Design Cooperative CDTobie@designcoop.com - Turn off HTML mail features. Keep quoted material short. Use accurate subject lines. http://www.leben.com/lists for list instructions.
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