User Manual
Page 2
... 1. Circular aperture for purchasing a Canon product. Canon's EF11-24mm f/4L USM is available after the subject comes into focus in autofocus mode (ONE SHOT AF). 6. SWC (Subwavelength Structure Coating) and ASC (Air Sphere Coating) are utilized to significantly reduce occurrences of flare and ghost created by quite large incident angles of aspherical lens elements giving superior definition...
... 1. Circular aperture for purchasing a Canon product. Canon's EF11-24mm f/4L USM is available after the subject comes into focus in autofocus mode (ONE SHOT AF). 6. SWC (Subwavelength Structure Coating) and ASC (Air Sphere Coating) are utilized to significantly reduce occurrences of flare and ghost created by quite large incident angles of aspherical lens elements giving superior definition...
User Manual
Page 4
...Please do not look at bright light sources using a commercially available air dust blower. ●● Since this lens has a wide angle of view, light from the surface of the front lens element, it can easily enter the image area. In order to prevent flare and ghost, we suggest shooting places ... image area, depending on shooting conditions. Precautions for Shooting ●● If dirt or dust adheres to the surface of the front lens element by using the camera's viewfinder. ●● Similarly, flare and ghost will occur when bright light sources appear in images due to...
...Please do not look at bright light sources using a commercially available air dust blower. ●● Since this lens has a wide angle of view, light from the surface of the front lens element, it can easily enter the image area. In order to prevent flare and ghost, we suggest shooting places ... image area, depending on shooting conditions. Precautions for Shooting ●● If dirt or dust adheres to the surface of the front lens element by using the camera's viewfinder. ●● Similarly, flare and ghost will occur when bright light sources appear in images due to...