Canon DIGISUPER 27AF BROCHURE

The flagship HD studio lens featuring highest

possible HD image performance and reliable

Auto Focus technology

The continuing worldwide spread of HDTV, the newly heightened interest in content production by 1080/60P/50P,
and the looming 4K and 8K image formats has elevated expectations for video image quality to ever higher levels.
This in turn demands higher levels of performance in broadcast lenses, since they are the initial entry point for scene
light and they predetermine excellence in image quality.

Even before HDTV became widely popular, Canon released XJ25x6.8B to the world market in1999 as a top-of­the-line HDTV lens for high-definition studio production. This product quickly acquired a leading role in the HD
studio production field and is to be found in major studios worldwide. A progressively increasing demand from
the market for higher image quality led to the release in 2008 of the next-generation XJ27x6.5B, which exhibited
the highest possible optical performance in the 2/3 inch format. The XJ27x6.5B AF is now Canon's flagship HD
studio lens, featuring the outstanding optical performance of the XJ27x6.5B plus the addition of Canon's unique
Auto Focus technology.

Highest possible image performance by Canon’s optical technology since 1958

The unrelenting progress Canon has made over the last 50 years in the areas of optical design
techniques typified by a large-aperture aspherical lens, optical materials, optical coatings and high­precision manufacturing processes has reached the peak of contemporary optical performance in the
XJ27x6.5B AF. This is an HD studio lens intended to bring out the very best in HD video origination
from the latest high-end 2/3-inch cameras from all major manufacturers.

Improved zoom ratio & exceptional wide angle

In terms of the lens specifications, by reducing the focal
length at the wide-angle setting from 6.8 mm in its
predecessor the XJ25x6.8B to 6.5 mm, we have widened
the horizontal angle of view in the new lens by 3.5%. At the
same time, the zoom ratio has been boosted from 25x to
27x, creating a more highly specified lens with more
dynamic image creation capabilities.

New Generation Digital Servo System

Servo System meets Robotic Requirements

• High resolution zoom and focus servo 13-bit
repeatability

10-bit Iris Compatibility

• High resolution iris control

Wide Dynamic Range of Zoom Servo Speed

• From ultra slow to high Max speed: Zoom 0.5sec

CAFS (Constant Angle Focusing System)

32-bit CPU calculates and controls the zoom when
focusing to counteract “breathing” (phenomena where
picture size/ angle of view changes when focusing) and
has zero zoom effect

Compatible with the virtual studio system

The XJ27x6.5B AF is capable of supplying various types
of positional signals to Virtual systems. The type of signals
can be chosen from: an Encoder data signal, an Analog
data signal or a Serial data signal, which are common in
existing Virtual systems.

Compact lens barrel

Even a lens equipped with a convenient AF function can
thwart the camera operator's creativity if the lens barrel is
so long as to hinder free-moving camerawork.
The total length of compact lens barrel of the
XJ27x6.5B AF is 567 mm (BTA MT).

Realization of an outstanding optical quality

By utilizing the Canon’s total latest optical technologies,
XJ27x6.5B AF provides excellent resolution at picture center and
at image extremities, while maintaining extremely low levels of
both longitudinal and lateral chromatic aberration across the entire
focal range of the lens.
And, even at the widest angle,
the lens manifests a tightly controlled
barrel distortion that is subjectively
not discernible. The low pincushion
distortion across the majority of the
focal range is virtually invisible.