Nikon 20mm f/3.5 UD,NIKKOR - The Thousand and One Nights No.20 | NIKKOR - The Thousand and One Nights | Nikon Consumer,20mm f/3.5 Nikkor-UD Auto Lens,Review: Nikon Nikkor 20mm f/3,5 UD – Addicted2light,44 years ago – Nikon's F 20mm/3.5 Nikkor-UD Auto | Andy E.'s Photo Blog