Popular for its reach and
flexibility, the Canon RF 70-200mm f/4L IS USM is a fresh take
on this well-regarded focal length, featuring an impressively sleek and
lightweight form factor perfect for their full-frame mirrorless cameras. The
constant f/4 maximum aperture strikes a balance between being bright enough for
available light shooting while also contributing to the especially portable,
handholdable design. Complementing this is an apt Optical Image Stabilizer,
which compensates for up to 5 stops of camera shake, or up to an impressive 7.5
stops of shake correction when paired with an EOS R-type body with IBIS.
Optically, this lens incorporates four UD elements, which
suppress a variety of aberrations throughout the zoom range for high clarity,
and an Air Sphere Coating is also featured to reduce flare and ghosting.
Balancing the distinguished optical system is a Dual Nano USM focus system,
which delivers fast, nearly silent autofocus performance with full-time manual
focus override. Additionally, this 70-200mm is weather-sealed and has a
fluorine coating to protect the front and rear elements.
Versatile telephoto zoom lens is
designed for use with full-frame Canon RF-mount mirrorless cameras.
Constant f/4 maximum aperture
affords consistent performance throughout the zoom range and also contributes
to the relatively lightweight design and compact form factor.
Four UD (Ultra-Low Dispersion)
elements help to minimize chromatic aberrations and color fringing in order to
provide greater clarity and color accuracy.
An Air Sphere Coating (ASC) has
been applied to lens elements to reduce backlit flaring and ghosting for maintained
light transmission and high contrast in strong lighting conditions.
An Optical Image Stabilizer helps
to minimize the appearance of camera shake by 5 stops to better enable working
in low-light conditions and with slower shutter speeds. Also, when working with
select cameras, up to 7.5 stops of stabilization may be available with the
Coordinated Optical Image Stabilizer and In-Body Image Stabilizer.
Dual Nano USM system utilizes both
a ring type USM and an STM mechanism to realize quick and accurate focusing
that is also smooth and nearly silent to suit both photography and video
applications. This focusing system also affords full-time manual focus control
when working in the one-shot AF mode.
Configurable Control Ring can be
used to adjust a variety of exposure settings, including aperture, ISO, and
exposure compensation.
Protective fluorine coating has
been applied to the front and rear element to resist fingerprints and smudges
and to make cleaning these elements significantly easier.
As a member of the esteemed
L-series, this lens has a weather-resistant design that protects against dust
and moisture to enable its use in inclement conditions.