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This invention relates generally to hand-held scanning systems which" read'indicia, such as barcode symbols, and in particular to systems and methods for scanning one dimensional (1-D) and two-dimensional (2-D) barcode sym bols with a first scan pattern that is relatively small and dense so as to be visible to the user, and thereafter a second, larger and more robust scan pattern for decoding. The invention also relates to scanners operable in both portable (hand-held) and surface mounted (hands-free) modes for reading various types of indicia. The invention further relates to novel miniature assemblies capable of 1-D and 2-D scanning.