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Crowded Field Photometry of M15 Using the TRIFFID Camera

Butler, R. F.; Redfern, R. M.; Shearer, J. A. L.

High-resolution imaging has been performed for a number of years using TRIFFID, the UCG/DIAS High Resolution Camera. Post-exposure image sharpening (PEIS) of TRIFFID data routinely produces resolution improvements up to the theoretical maximum factor of two. HST resolution remains superior but unlike TRIFFID it cannot be used for extended observat…