Hi Mikael,
is there a quick fix/hack that somehow allows me to get it look "almost like it should" in a small document today with bonum?
This might get you somewhere. I hope you don't have too many double primes in your document... NB: `%macros=mkvi` has to be the first line in the file. Cheers, Sietse % macros=mkvi \setupbodyfont[bonum] % This macro takes 1 arguments, #upper. It postfixes a negative kern just a % bit larger than the width of #upper, so that #upper does not push % the next content away to the right. \def\myprime#upper% {% 1. Store the width of the primes in a box, so we can get its width \setbox\scratchbox=\hbox{$#upper$}% % 2. We'll want to kern back by a bit more than \scratchdimen=\dimexpr \wd\scratchbox + 0.3em \relax% % The actual typesetting \kern 0em #upper\kern -\scratchdimen} \starttext % Quick and dirty 1: just pretend the prime is uppercased $f'_x$, $f_x'$ $f^{\prime\prime}_x$. % Less quick, still dirty: the \myprime macro defined above $f'_x$, $f_x'$ $f\myprime{\prime\prime}_x$. % Slow and dirty: add a kern between the \primes, % because bonum pushes them apart a bit. $f'_x$, $f_x'$ $f\myprime{\prime\kern -0.1em \prime}_x$. \stoptext