This Navitar lens is a great addition to your slide projector setup. With its 9 inch f/2.8 aperture, you'll be able to project your slides with beautiful clarity. It's made by D O Industries in the United States, ensuring quality craftsmanship. This lens is compatible with a variety of brands, including Kodak, and is designed to fit slide projectors. It's a fixed focus type lens, perfect for capturing your slides in sharp detail. Don't miss out on this opportunity to enhance your presentation with a Navitar lens.