In June 1997, parallel observations using the Space Telescope Imaging Spectrograph (STIS) on the HST started to be taken in substantial numbers along many different lines-of-sight. We are using the imaging data to investigate the distortion of background galaxies by the gravitational field of the large scale matter distribution, also known as Cosmic Shear. This poster presents the data and the catalog production that leads to the cosmic shear result presented in the poster First Cosmic Shear results from STIS parallel program archive data (Haemmerle et al., this conference). The data is publicly available also at http://www.stecf.org/projects/shear .
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