Context. The First Byurakan Survey (FBS), also known as the Markarian Survey, is the largest low resolution spectroscopic survey of the sky and led to the discovery of 1500 UV-excess (UVX) galaxies and starburst galaxies. The FBS plates have also been used to search for UVX stellar objects, late-type stars, and for the identification of unusual infrared sources. Aims. The Digitized First Byurakan Survey (DFBS) provides the astronomical community with a digitized version of the FBS images and with the extracted spectra for the objects present in the plates. Methods. Nearly 2000 plates have been scanned and stored and programs were developed to compute the astrometric solution, extract the spectra, and apply wavelength and photometric calibration for the objects present in the plates. Results. The DFBS database and catalog of objects has been assembled. The DFBS database contains data for 20 000 000 objects present in the survey and provides tools for accessing the DFBS. Conclusions. New scientific projects as well as existing surveys will benefit by the digitized images and the ready-to-use extracted spectra which will allow an efficient computer-based analysis of the dataset.

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Abstract. We present F band photometry from digitized plates obtained with 48-inch Palomar Schmidt for 1074 galaxies brighter than m 3 + 3 in 10 clusters. For each galaxy equatorial coordinates, magnitude, size, ellipticity and orientation are given. We provide the galaxy surface density maps for each cluster.

Abstract. We present F band photometry, from digitized 48-inch Palomar plates, of 2818 galaxies brighter than m 3 + 3 in 15 Abell clusters. For each galaxy, absolute coordinates, magnitude, size, ellipticity and orientation are given. For each cluster we provide finding charts and contour maps of the galaxy surface density. The absolute coordinates of the galaxies of other 8 clusters presented in the first paper of this series are also included.