A series of CCD observations of a sky area in the NGC 6913 cluster was made with the use of the 2-m telescope (the Terskol Peak Observatory, Northen Caucases) to realize the UBVR Johnson system. We derived magnitudes and positions for stars down to V = 20^m for a sky area of 7'×5' arcmin. Equatorial coordinates of stars were obtained in the star catalogue USNO A2.0 reference frame with a precision of 0.35". The instrumental photometric system is determined with respect to the UBVR Johnson system. The procedure for reducing the CCD frames is briefly described which is realized in the LINUX/MIDAS/ROMAFOT on the basis of a new method for field elimination. The rms error is 0.02...0.03^m for magnitude determination and 0.03...0.04" for position determination. The linearity of the star magnitude scale of the CCD detectors PHOTOMETRICS is equal to 10 magnitudes.