Ikelite Port Body for 8" Dome Port for Olympus Zuiko 7-14mm LensIkelite FL Modular Zuiko 7 14mm Lens Extension 551025 Ikelite Product Number 5510. 25 A popular Modular Lens Extension for use with the Olympus mount Zuiko 7 14mm zoom lens. The extension threads onto the base of either the Modular 8 inch Dome for simple assembly. Accommodates lenses up to 4. 25 inch (10. 8 cm) long and 3. 3 inch (8. 4 cm) in diameter when used with the Modular 8 inch Dome. Accommodates lenses up to 4. 15 inch (10. 5 cm) long when