Context : Accurate mass , radius , and abundance determinations from binaries provide important information on stellar evolution , fundamental to central fields in modern astrophysics and cosmology .

Aims : Within the long-term Copenhagen Binary Project , we aim to obtain high-quality light curves and standard photometry for double-lined detached eclipsing binaries with late A , F , and G type main-sequence components , needed for the determination of accurate absolute dimensions and abundances , and for detailed comparisons with results from recent stellar evolutionary models .

Methods : Between March 1985 and July 2007 , we carried out photometric observations of AD Boo , HW CMa , SW CMa , V636 Cen , VZ Hya , and WZ Oph at the Strömgren Automatic Telescope at ESO , La Silla .

Results : We obtained complete uvby light curves , ephemerides , and standard uvby \beta indices for all six systems .
For V636 Cen and HW CMa , we present the first modern light curves , whereas for AD Boo , SW CMa , VZ Hya , and WZ Oph , they are both more accurate and more complete than earlier data .
Due to a high orbital eccentricity ( e = 0.50 ) , combined with a low orbital inclination ( i = 84 \aas@@fstack { \circ } 7 ) , only one eclipse , close to periastron , occurs for HW CMa .
For the two other eccentric systems , V636 Cen ( e = 0.134 ) and SW CMa ( e = 0.316 ) , apsidal motion has been detected with periods of 5 270 \pm 335 and 14 900 \pm 3 600 years , respectively .

Conclusions :