The Canon Macro Photo Lens MP-E 65mm f/2.8 1-5x is a specialized, extreme-closeup manual-focus lens designed for Canon EF-mount cameras. Unlike standard macro lenses that offer 1:1 (life-size) reproduction, this optic jumps beyond conventional limits, allowing users to magnify subjects from 1x to 5x life-size without needing bellows or extension tubes. Key Features & Optics: Magnification Range: 1x to 5x. At 5x magnification, you can fill an entire 35mm frame with something as tiny as a single grain of rice. Floating System: Employs a 3-group floating element system to maintain sharp, high-contrast image quality throughout the entire magnification range. Super Spectra Coating: Minimizes flare and ghosting for accurate colour balance and contrast. Handling & Operation Manual Focus Only: It does not focus to infinity and is exclusively built for extreme macro work. Lighting Constraints: As magnification increases to 5x, the working distance shortens drastically and the effective aperture darkens (e.g., stopping down to f/16 at 5x results in an effective aperture of f/96). Because of this, it is highly recommended to use a tripod and a dedicated macro flash. Tripod Collar: Includes a tripod mount ring for better stability when mounted on a tripod.