We present BVI photometry for poorly known southern hemisphere open clusters : NGC 2425 , Haffner 10 and Czernik 29 .
We have calculated the density profile and established the number of stars in each cluster .
The colour-magnitude diagrams of the objects show a well-defined main sequence .
However , the red giant clump is present only in NGC 2425 and Haffner 10 .
For these two clusters we estimated the age as 2.5 \pm 0.5 Gyr assuming metallicity of Z = 0.008 .
The apparent distance moduli are in the ranges 13.2 < ( m - M ) _ { V } < 13.6 and 14.3 < ( m - M ) _ { V } < 14.7 , while heliocentric distances are estimated to be 2.9 < d < 3.8 kpc and 3.1 < d < 4.3 kpc , respectively for NGC 2425 and Haffner 10 .
The angular separation of 2.4 deg ( 150 pc at mean distance ) may indicate a common origin of the two clusters .