  As part of a project to compare the Fundamental Plane and Tully-Fisher
distance-scales, we present here I band CCD photometry for 636 early-type
galaxies in 8 clusters and groups of galaxies. These are the A262, A1367, Coma
(A1656), A2634, Cancer and Pegasus clusters, and the NGC 383 and NGC 507
groups. Sample selection, cluster properties, and cluster membership assignment
criteria are discussed. We present photometric parameters that are used in the
Fundamental Plane relation, the effective radius r_e and the effective surface
brightness mu_e, as derived from a r^{1/4} fit to the observed radial
photometric profile of each galaxy. A comparison with similar data found in the
literature for the Coma cluster shows that large systematic uncertainties can
be introduced in the measurement of r_e and mu_e by the particular method used
to derive those parameters. However the particular combination of these two
parameters that enters in the Fundamental Plane relation is a quantity that can
be measured with high accuracy.
