1. eye lens , and this design is now called a Galilean telescope.2. After all, while it's 18mm, it's not a fish-eye lens . 3. Using a fish-eye lens , Yeo has captured the overall scene. 4. GABAergic systems have also been found in the testis and in the eye lens . 5. This lens is about in diameter, while HAL's prop eye lens is about in diameter. 6. The eye lenses are illuminated and shown to have an iris which can expand and contract. 7. The brain will also adjust eye lenses to get a clear image of the matched pair. 8. And indeed you don't, as researchers at the National Institutes of Health studying eye lenses are discovering. 9. All the while, the view through the space helmet is distorted, like looking through a fish-eye lens . 10. The Nikon Coolpix 900, for example, uses high-quality Nikkor glass lenses, with optional wide-angle and fish-eye lenses .