This is the very common transit about TrES-2b in Draco, one of the first exoplanet discovered that still one of the most important and observed. We recorded this transit at WBRO-K49 with Giuseppe Marino, Massimo Banfi and Riccardo Papini.
The conditions were good all night long. Just a problem with defocus came after the flip: this changed the initial precision. Without this, we are sure we could reach an RMS down to 1 mmag.
Exposition and setup are always the same: 300 sec with V filter. All calibrations done.
These are the lightcurve and the system reconstruction based on data:
Here is the link to ETD report: http://var2.astro.cz/EN/tresca/transit-detail.php?id=1563398277&lang=en