30 minutes exposure, Kodak Elite Chrome 400 slide film.
5" f/5 refractor at prime focus.
NGC 1528 is a large and very scattered cluster of moderately bright stars in northern Perseus, about 10 degrees east of alpha persii. The cluster is dominated by blue main sequence stars, however the colours can be difficult to discern due to the relative faintness of the individual stars.
Just to the left of the two bright stars in the lower left of the picture is the scattered open cluster NGC 1545. In the centre of this cluster is a red giant star with a yellow sub-giant star beside it. These are the brightest stars in this cluster.