  We have investigated the two open clusters NGC 6192 and NGC 6451 for which
widely different reddening values and thus ages and distances can be found in
the literature via Stroemgren uvby photometry. Our measurements allow to
disentangle the apparent discrepancies from the literature and to derive new
accurate values. From appropriate calibrations we find that the overall
abundance for NGC 6192 is about solar whereas a subsolar value for NGC 6451 was
estimated. From two previous reported photometrically candidate CP stars, one
within NGC 6192 shows Stroemgren indices typical for a B8Si star whereas the
other object of NGC 6451 is most probably a foreground G-type star.
