ðə lˈɛnz kæn biː pɹˈiːfˈoʊkəst bˌʌt dʌznˌɑːt mˈuːv ˌɪntʊ pəzˈɪʃən ʌntˈɪl ðə ʃˈʌɾɚ bˈʌʔn̩ ɪz fˈʊli dᵻpɹˈɛst.
The lens can be pre-focused but does not move into position until the shutter button is fully depressed.