This Rokinon Bundle provides four lenses that you can use to shoot images from wide shots to portrait, it includes; Rokinon's 20mm T1.9, 35mm T1.5, 50mm T1.5, and 85mm T1.5 Cine DS Lenses that feature sharp optics and similar physical characteristics for fast lens changes. The 35, 50, and 85mm lenses share a T-stop range of 1.5 to 22, while the 20mm is a little slower with an exposure range of T1.9 to T22. Each included lens covers full-frame sensors. Aperture and focus scales are marked on both sides of the lens, which makes it easier for a focus puller to work either side of the lens. The lenses feature a multi-layer coating providing good contrast, a sharp image, and protection from veiling glare. Industry standard focus and iris gear rings share a common position across the lenses for quick lens swaps when working with lens accessories such as follow focus units. Focus and iris are manual only with no electronic focus or iris control by the camera, and the iris ring is de-clicked, which allows you to make smooth iris pulls during a shot.