Manual or Fixed Iris Lenses are best suited for indoor applications where there is a minimal amount of change in the light levels present. The Sections below, will assist you in finding the correct lens for your application without too much trouble. Rainbow Manual Iris Varifocal and Zoom Rainbow Manual Iris Fixed Focal Length Rainbow Fixed Iris Fixed Focal Length Computar Manual Iris Varifocal and Zoom Computar Manual Iris Fixed Focal Length Computar Fixed Iris Fixed Focal Length Generic Manual Iris Varifocal and Zoom Generic Manual Iris Fixed Focal Length General Fixed Iris Fixed Focal Length All Security Equipment, Surveillance Equipment and CCTV products come with a minimum 1 year warranty, and in some cases, the manufacturer may extend your CCTV products warranty even further. All prices shown are DELIVERED UPS std Ground, and there are no additional shipping charges unless other shipping arrangements are required. Government, and institutional Purchase orders accepted with prior approval. Please fax your purchase order directly to 231-346-5920, or call 231-932-9550 for details and toll free faxing. Thank you again for visiting cu1.com, your CCTV surveillance and security equipment experts. Please stop in again! Gladly Accepted.