The Opteka mirror lens is incredibly compact and lightweight. Using an advanced reflex design, this is a mirror lens that is ideally suited for wildlife and sports photography. It has a fixed aperture of f8.
Incredibly compact and lightweight, this lens is ideally suited for sports and wildlife photography. the Manual 500mm f/6.3 Multi-Coated ED Mirror Lens is incredibly powerful. This lens is designed and constructed with ED Glass for enhanced dispersion.
The 85mm 1.8 is the standard for portraiture lenses. Note: this lens is Manual Control lens ,without auto focus. 85mm f/1.8 manual focus, digitally-optimized fisheye lens with Nikon mount. it has a removable lens hoods to block out extraneous light and glass coating for better results from backlighting scenarios.