OTUS1.4/100 is one of the best lenses in this class due to extremely excellent imaging performance and high manufacturing quality.Even if F1.4 is open, it exhibits outstanding imaging performance with the highest level of details and resolution, creating photographic expression comparable to medium format.Apochroma -lens design using aspherical lenses and special glass suppress almost all possible aberration.Whether it's a portrait or a product photo, the beautiful bokeh will impress.- Focal Distance 100mm aperture value f/1.4 to f/16 shooting distance 1.0m ~ ∞ angle of angle (diagonal/horizontal line) 24.1 °/20.2 ° Recent range 206mm x 309mm Maximum shooting magnification 1 -vs 8.6 lens configuration 14 pieces Filter φ86mm Mass 1350g Maximum diameter φ100.7mm Total length (from mount) 128.8mm mount ZE (Canon EF)