BVRI surface photometry for a sample of 14 Sb galaxies

Profiles of surface brightness, ellipticity and position angle obtained from CCD-BVRI images are presented for a sample of 14 spiral galaxies with 13 < B(T) < 16.1. For these galaxies, exponential disc components were fitted to the profiles. A decrease of disc scalelengths from B to I is found for 13 galaxies, while for one galaxy scalelengths increase from B to I. The scalelength ratios r(D)(B)/r(D)(I), r(D)(V)/r(D)(I) and r(D)(R)/r(D)(I) show a systematic increase with increasing apparent ellipticity. The maximum variation is found for r(D)(B)/r(D)(I) which is 80% larger for edge-on galaxies than for face-on galaxies.