Canon RF 28-70mm F2L USM

The Canon RF 28-70mm F2L USM is a groundbreaking professional zoom lens for RF-mount full-frame mirrorless cameras. Featuring an unprecedented constant f2 aperture, advanced L-series optical engineering, robust weather sealing, ring-type USM autofocus, and a customizable control ring, it delivers prime-like sharpness and depth control across its range. Available at Unicorn Films for rental, this lens is ideal for portrait, wedding, commercial, and event work where creative flexibility and uncompromising image quality are essential.

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About This Product

The Canon RF 28-70mm F2L USM pushes the boundaries of standard zooms with a unique f2 aperture, offering image quality that rivals top primes. Now available through Unicorn Films, this lens lets you achieve stunning shallow depth of field, vibrant color, and superior low-light performance all with the convenience and flexibility of a zoom. With ultra-low dispersion glass and advanced coatings, it minimizes aberrations and flare for unrivaled sharpness at every setting. The robust L-series construction features fluorine coating, full weather sealing, and a highly customizable RF control ring, supporting demanding field use and instant exposure adjustments. The fast ring-type USM autofocus is responsive and silent, making it perfect for both high-res stills and professional video in dynamic environments.

World’s-First f2 Constant Zoom: Provides extraordinary light-gathering and creative background blur at all focal lengths, outclassing other zooms in depth control and subject isolation.
L-Series Optical Performance: Composed of 19 elements in 13 groups, including Ultra-Low Dispersion and Super UD glass, and treated with Air Sphere and Sub-Wavelength Coatings for optimal sharpness and reduced flare.
Silent High-Speed Autofocus: Ring-type USM with optimized algorithms delivers fast, near-silent focusing with full-time manual override perfect for video and critical photo work.
Customizable RF Control Ring: Easily adjust aperture, ISO, or exposure compensation straight from the lens, streamlining rapid creative decisions during a shoot.
Comprehensive Weather Sealing: Engineered to operate reliably in dust, humidity, or rain, with front and rear fluorine coatings that resist dirt and fingerprints—built for tough rental environments.
Macro-Style Close Focusing: Focuses as close as 0.39 meters across the zoom range, with 0.18x maximum magnification for creative tight shots in situ.
Premium Build and Ergonomics: Includes a large, tactile zoom ring, dedicated lens hood, sturdy tripod collar, and a well-balanced design for extended handheld or gimbal use.
Rental-Optimized Kit: Supplied with 95mm filter thread, lens hood, case, and protective caps, ensuring readiness for professional assignments of any size.

Rent the Canon RF 28-70mm F2L USM from Unicorn Films to experience the next generation of standard zoom performance delivering unmatched creative power, handling, and visual results for the highest-end projects.

Product Features

Feature	Description	Benefit
Focal Length	28-70mm	Covers wide to short telephoto; highly versatile
Maximum Aperture	Constant f2	Unprecedented low-light capability and smooth bokeh
Optical Construction	19 elements in 13 groups; UD & Super UD glass	Prime-like sharpness and color accuracy across range
Coating Systems	Air Sphere, Sub-Wavelength, fluorine-coated glass	Minimizes flare, ghosting, and resists dirt and smudges
Autofocus System	Ring-type USM, full-time manual override	Fast, precise, silent for stills or video
Control Ring	Custom-configurable for ISO, aperture, or exposure comp	On-the-fly exposure control in the field
Minimum Focus Distance	0.39 meters	Macro-inspired close-ups without changing lenses
Maximum Magnification	0.18x	Frame smaller subjects with dramatic zoom compression
Diaphragm Blades	9, rounded	Smooth, aesthetic bokeh for portraits and product work
Image Stabilization	No	Pair with IBIS bodies for best results
Weather Resistance	Full L-series sealing, fluorine front & rear	Works in tough outdoor or travel situations
Filter Size	95mm front thread	Supports pro ND, polarizer, FX filters
Dimensions & Weight	103.8 × 139.8 mm; 1430g	Balanced for handheld or tripod use
Mount Type	Canon RF	Full compatibility with R-series mirrorless cameras
Included Accessories	Lens hood, case, caps	Ready for field or studio assignments

Frequently asked questions

What proprietary elements in the lens's optical formula enable it to sustain f2 sharpness from edge to edge at all focal lengths?

This lens incorporates both Super UD and standard UD glass, plus aspherical surfaces with advanced Air Sphere and Sub-Wavelength Coatings. Together, these elements correct color fringing, minimize flare, and ensure resolution is retained across the full sensor area even at f2, making it uniquely suited for high-resolution event, fashion, or product shoots that demand prime-like sharpness in challenging lighting.

How does the customizable RF control ring improve workflow when shooting in environments where you can’t take your eye off the viewfinder?

The separate control ring, which can be set to adjust aperture, ISO, or exposure compensation, allows for silent, tactile settings changes on-the-fly, directly from the lens barrel. This is especially vital for fast-paced shooting such as runway or live event work, where missing a moment to change camera body dials is not an option.

How does the mechanical zoom system and large, tactile ring contribute to video rig stability and focus pulls?

Unlike variable aperture competitors, the Canon RF 28-70mm’s consistent f2, non-extending barrel, and precise zoom/focus control means less lens breathing and weight shift on gimbal or tripod rigs. This is beneficial for pro video projects requiring locked-down composition and repeatable movement without zoom creep.

What safeguards ensure the lens's performance during extended outdoor rental in dusty, wet, or rapidly changing environments?

The lens body uses full L-series weather sealing, including gaskets and fluorine-coated front/rear elements. This enhances resistance to dust, rain, and smudges and allows users to confidently shoot in harsh field conditions, itinerant travel, or unpredictable event locations.

When pushing the minimum focus distance at 28mm, what unique visual effects or genres become accessible with this lens compared to traditional primes?

At just 0.39 meters minimum focus, the lens enables wide-angle close-ups with prominent foregrounds, environmental portraits, or dramatic commercial product photography with exaggerated perspective none of which are possible with typical prime-only kits at f2.