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The scaling in \externalfigure[][] with option sy=number seems to have a discrete change in behaviour between sy=1.0 and sy=(not 1.0). The MWE (see below, FIGURE REMOVED BECAUSE OTHERWISE MESSAGE TOO LARGE) shows that factor sy≠1.0 is applied to the original height of the figure, but for sy=1.0 the height is changed proportional to the reduction in width. Thus the series sy=0.999 sy=1.0 sy=1.001 has a discontinuity in the scaling of height. I would expect sy=1.0 to return the figure in the original height. Is this behaviour on purpose? With the current behaviour I must provide for sy=1.0 => sy=1.001 in order to get the original height. Although not to difficult with a jump to Lua code, I would prefer not. yours sincerely dr. Hans van der Meer \starttext \ConTeXt\space version \contextversion\blank \type{\externalfigure[testfile.jpg]} source figure\crlf \externalfigure[testfile.jpg]\crlf \type{\externalfigure[testfile.jpg][width=5cm]}\crlf \externalfigure[testfile.jpg][width=5cm]\crlf Explanation: height scaled proportional to the width reduction. \blank \type{\externalfigure[testfile.jpg][width=5cm,sy=0.999]}\crlf \externalfigure[testfile.jpg][width=5cm,sy=1.001]\crlf Explanation: sy different from 1.0 applies sy to original height. \blank \type{\externalfigure[testfile.jpg][width=5cm,sy=1.0]}\crlf \externalfigure[testfile.jpg][width=5cm,sy=1.0]\crlf Explanation: sy=1.0 exactly is ignored? \blank \type{\externalfigure[testfile.jpg][width=5cm,sy=1.001]}\crlf \externalfigure[testfile.jpg][width=5cm,sy=1.001]\crlf Explanation: sy different from 1.0 applies sy to original height. \blank \stoptext  met vriendelijke groet, dr. Hans van der Meer Burgemeester Rijnderslaan 244 ingang D 1185 MC Amstelveen tel. 020 6452701 / 06 53743629