Daytime site testing at Dome C: Results of 2003–2004 campaign

We present results of daytime site testing at Dome C in sum- mer 2003-2004. Daytime seeing has been monitored during 2 1 months a DIMM on the bright star Canopus, giving median value of 0.54 arc- sec. An every-day best seeing period has been observed around 5pm with seeing around 0.3 arcsec. First isoplanatic angle measurements, based on stellar scintillation, were also performed during the month of January, 2004, and gave median value of 6.8 arcsec.