REALiS PROJECTOR TECHNOLOGIES
OUTSTANDING IMAGE CLARITY
Many Canon REALiS lenses incorporate Canon’s advanced optical technology to ensure images stay crisp, sharp and true. A variety of these technologies have been proven in Canon’s EF lenses, and include sophisticated aspherical lenses that minimize distortion as well as UD (Ultra-low Dispersion) glass that helps prevent chromatic aberration (blurred color fringing). Many REALiS lenses also include lens coatings that minimize ghosting, reflection and flare.
DEEP DEPTH OF FIELD
Some REALiS lenses enable a deep depth of field, allowing projected images to appear crisp, clear and in focus all the way to the very edges of the screen. Certain models of Canon REALiS lenses include independently floating elements to achieve this for greater image stability.
REALiS Interchangeable Standard Zoom Lens Floating System
Marginal FocusSelect projectors feature built-in marginal focus to allow adjustment of focus on spherically domed surfaces, helping to ensure that images projected are kept in focus right up to the very edges.
MINIMAL TV DISTORTION
Other projector lenses may have some TV distortion, with some warping of the image at the far edges of the screen. Canon REALiS projector lenses are designed to greatly reduce distortion, keeping the image edges straight with minimal TV distortion. As a result, edge blending for multi-screen projection is seamless. Blended pictures are well-aligned both vertically and horizontally with pixel-point accuracy, even with lens shift.
Leads to beautiful multi-screen projection
When edge blending multiple projectors, having straight edges is critical to create a seamless look. If TV distortion is significant it can negatively impact the blending.
Comparison of TV Distortions
MINIMAL CHROMATIC ABERRATION
The advanced optical elements in Canon’s REALiS lenses help to reduce chromatic aberration, the appearance of blurred color fringes around subjects in the projected image. Along with our UD glass, the lens elements ensure accurate color refraction for enhanced clarity and sharp, precise reproduction of highly detailed images.