On 03.Feb.2010, at 19:22, Pascal de Bruijn wrote: > On Wed, Feb 3, 2010 at 6:55 PM, Hening Bettermann <hein.be@xxxxxx> wrote: >> TIFFReadDirectory: Warning, 5D2_938_curv_exp0,5_rot_crop.tif: unknown field >> with tag 34665 (0x8769) encountered. >> ./scanin110: Error - 4 chanel input '5D2_938_curv_exp0,5_rot_crop.tif' must >> be a CMYK tiff file > > My guess is that you probably have alpha transparancy in your image... > So you have the RGBA channels which are four, when scanin "sees" four > channels it thinks the image is CMYK, not RGB(A). So save the TIFF > without alpha transparancy. > > Regards, > Pascal de Bruijn Thank you Pascal, but I can hardly see how this can be. If I open the .tif in PS and try Save As.., the Transparency option is unchecked and dimmed. Sigh - Hening.