Zeiss - Sony uses nothing but Zeiss technology for ALL their cameras. Using German technology that never seems to waiver from the highest standards of precision and quality, they believe that the number one priority is in creating the most flawless optical lens design so as to allow the wearer to function day-to-day with the ease of vision one deserves. Had trouble with Progressive lenses in the past or heard horror stories then come in and ask your Registered Optician about the first ever, fully customized lens; Zeiss Individual.