Hi, Argyll V1.3.5: $ chartread -c 5 -F n $PROFILE Please place sheet 1 of 1 on table, then hit return to continue, Esc or 'q' to give up ... Argyll V1.4.0: $ chartread -c 5 -F n $PROFILE Setting filter configuration not supported by instrument $ I have not checked if the same error applies to other instruments as well. -Wolfgang Weisselberg diff --git a/spectro/ss.c b/spectro/ss.c index 4a4dbb1..5a5b28e 100644 --- a/spectro/ss.c +++ b/spectro/ss.c @@ -1887,7 +1887,9 @@ ss_set_opt_mode(inst *pp, inst_opt_mode m, ...) if (!p->gotcoms) return inst_no_coms; - if (!p->inited) + + /* Setting the filter is allowed without an initialized instrument */ + if (!p->inited && m != inst_opt_set_filter) return inst_no_init; if (m == inst_opt_noautocalib) {