Abstract
We obtained CCD B VRI frames of a region in Baade's Window for which we have previously conducted a very extensive infrared study (Ruelas-Mayorga & Teague l992a) with the idea of studying the properties of these stars in the shorter wavelength interval and of comparing with the IR study mentioned above. We present preliminary results of this study in the form of magnitude-colour and colour-colour diagrams. We note that there are at least two different sequences of stars; one that is bright and extends towards the blue (disc) and another one fainter and redder (bulge). The width of the sequences on the colour-colour diagrams varies as a function of colour and may denote a change and/or a spread of metallicity.
