  We have analysed high-resolution spectra of 28 A and 22 F stars in the Kepler
field, observed with the FIES spectrograph at the Nordic Optical Telescope. We
provide spectral types, atmospheric parameters and chemical abundances for 50
stars. Balmer, Fe I, and Fe II lines were used to derive effective
temperatures, surface gravities, and microturbulent velocities. We determined
chemical abundances and projected rotational velocities using a spectrum
synthesis technique. Effective temperatures calculated by spectral energy
distribution fitting are in good agreement with those determined from the
spectral line analysis. The stars analysed include chemically peculiar stars of
the Am and Lambda Boo types, as well as stars with approximately solar chemical
abundances. The wide distribution of projected rotational velocity, Vsini, is
typical for A and F stars. The microturbulence velocities obtained are typical
for stars in the observed temperature and surface gravity ranges. Moreover, we
affirm the results of Niemczura et al., that Am stars do not have
systematically higher microturbulent velocities than normal stars of the same
temperature.

Solar and Stellar Astrophysics