We present CCD photometry and proper motion studies of the two open star clusters NGC 1960 ( M 36 ) and NGC 2194 .
Fitting isochrones to the colour magnitude diagrams , for NGC 1960 we found an age of t = 16 Myr and a distance of roughly d = 1300 pc and for NGC 2194 t = 550 Myr and d = 2900 pc , respectively .
We combined membership determination by proper motions and statistical field star subtraction to derive the initial mass function of the clusters and found slopes of \Gamma = -1.23 \pm 0.17 for NGC 1960 and \Gamma = -1.33 \pm 0.29 for NGC 2194 .
Compared to other IMF studies of the intermediate mass range , these values indicate shallow mass functions .