Overview Integrated Mount: The Tokina SZ 900mm PRO Reflex F11 MF CF is compatible with Canon EF mount cameras through an integrated mount design. This mount design allows one to maintain stable rendering quality, and makes attaching or removing the lens easier. Easy to Focus: The Tokina SZ PRO series are manual focus lenses. Tokina's interchangeable lenses usually come equipped with a focus ring that rotates 45 to 200. High grade cinema lenses have larger rotating angles of up to 300. The Tokina SZ 900mm PRO Reflex F11 MF CF provides 270 focus rotation angle, that allows precise focusing operations within a shallow depth of field. Perfect Round Donut-Shape Bokeh: Mirror lenses are known for their unique donut-shaped bokeh, which result from the way they render light sources in off-focus areas. Some mirror lenses render incomplete donut-shaped bokeh, which appear as a C-shape. The Tokina SZ 900mm PRO Reflex F11 MF CF has been designed to reduce vignetting, thus achieving beautifully complete bokeh rings. Great Macro Capabilities: The Tokina SZ 900mmPRO Reflex F11 MF CF performs well not only in long distance shooting, but also in macro photography. Common tele photo lenses do not allow for macro shooting. However, the maximum magnification of this lens is 1:2.5 (0.4x), large enough to enjoy macro photography. Make Daily Scenery Dramatic: The best thing about tele photo lenses is that they "capture what the human eye cannot". With the Tokina SZ 900mm PRO Reflex F11 MF CF everyday scenery will appear dramatic and iconic. Enjoy Compression Effect: One of the effects tele photo lenses boast is compression, which is when the background appears closer/ larger compared to foreground objects. By using the compression effect, you can enjoy capturing enchanting images that are out of this world. Wild Nature Photography: Wild nature has never been so close Enjoy wild life photography with the Tokina SZ 900mm PRO Reflex F11 MF CF F mirror lenses. Perfect for Spotting: The Tokina SZ PRO series is highly recommended for spotters and wildlife photographers. Trains, airplanes and animals are only a few suggested genres. The Tokina SZ 900mm PRO Reflex F11 MF CF allows distant and out-of-reach objects to become more personal.. Tokina's Full Line-Up of Mirror Lenses: Tokina is the only manufacturer in the world that produces and sells wide range of mirror lens for amateur and professional photographers. Features: The Tokina SZ 900mmPRO Reflex F11 MF CF is a super compact, fully manual lens, which adopt a catadioptric-type optical design. These lens features 900mm focal lengths, and is exclusively designed for APS-C mirrorless cameras. The Tokina SZ 900mm PRO Reflex F11 MF CF incorporates integrated mounts for Canon EF. Thanks to a catadioptric optical design this lens is very light weight and super compact. This product allows you to enjoy the world of super tele photography, and is a perfect option for users who are looking for affordable super tele photo lens. Rediscover advantages of mirror lenses, by using it with contemporary mirrorless cameras. We believe that the value and viability of mirror lenses should be reconsidered in contemporary photography. Therefore, we have re ne.wed our lens technology and development. Our ne.w mirror lens options will allow you to embark on a ne.w tele photo journey.