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Canon EF 24-105mm f/4L IS ii USM Lens
Key Features
EF-Mount L-Series Lens/Full-Frame Format
Aperture Range: f/4 to 22
Four GMo Aspherical Elements
Air Sphere Coating
Ring-Type Ultrasonic Motor AF System
Optical Image Stabilization
Internal Focus; Full-Time MF Override
Zoom Lock Switch; Fluorine Coating
Dust- and Water-Resistant Construction
Rounded 10-Blade Diaphragm
1 Year Warranty
Canon EF 24-105mm f/4L IS II USM Lens Review: The Ultimate Professional All-In-One Multimedia Workhorse
For professional event documentarians, travel photojournalists, commercial videographers, and run-and-gun content creators, swapping lenses mid-assignment is a major operational bottleneck. Standard short-range zooms often cut off right when you need a bit more telephoto reach, while carrying multiple primes adds immense weight to a field kit. Demanding professional settings require a single, versatile lens that delivers elite-tier edge-to-edge sharpness, constant light-gathering capabilities, advanced stabilization, and heavy-duty weather sealing. The Canon EF 24-105mm f/4L IS II USM Lens is engineered precisely to serve as that definitive, high-yield multimedia asset.
As the heavily updated and optically refined successor to one of the most popular standard zooms in Canon’s legendary luxury L-series lineup, this Mark II variant delivers substantial improvements in ghosting control, stabilization, and peripheral brightness. Let’s evaluate why this sharp f/4 zoom remains the ultimate “one-lens solution” for full-frame and mirrorless creators worldwide.
Canon EF 24-105mm f/4L IS II USM Technical Specifications
Canon optimized the mechanical architecture, internal glass configurations, and digital stabilizer matrices of this elite standard-to-telephoto zoom to deliver incredible rendering uniformity across its massive focal span:
| Specification | Technical Details |
|---|---|
| Lens Mount Type | Canon EF (Natively maps to Full-Frame and APS-C DSLRs) |
| Focal Length Range | 24–105 mm (35mm Full-Frame Equivalent on APS-C: 38.4–168mm) |
| Angle of View (Diagonal) | Approx. 84° to 23° 20′ on full-frame sensors |
| Maximum Aperture | Constant f/4 |
| Minimum Aperture | f/22 |
| Lens Architecture | 17 elements in 12 groups |
| Specialized Glass Optics | 4 Glass-Molded (GMo) Aspherical elements (combating distortion and field curvature) |
| Diaphragm Aperture Blades | 10 blades (Circular array for incredibly smooth background highlights) |
| Autofocus Drive Mechanism | Inner-focusing Ring-type Ultrasonic Motor (USM) with Full-Time Manual override |
| Minimum Focusing Distance | 0.45 meters (1.48 feet across all zoom positions) |
| Maximum Magnification | 0.24x (at the 105mm focal position) |
| Filter Interface Thread | 77 mm |
| Physical Weight | Approx. 795 grams (28.0 oz) |
| Dimensions (Diameter x Length) | Approx. 83.5 mm x 118.0 mm |
Key Features of the Canon EF 24-105mm f/4L IS II USM Lens
The EF 24-105mm f/4L IS II USM relies on an expanded standard-to-portrait focal span, advanced anti-reflective element coatings, and rapid ultrasonic focus tracking to provide a fast-paced creative workflow.
- Massive, Highly Adaptable 4.4x Focal Range (24-105mm): The definitive power of this prime-replacing zoom is its incredibly useful focal sweep. It allows you to transition instantly from expansive landscapes, tight interiors, or wide crowd shots at 24mm to standard storytelling perspectives at 50mm, all the way up to an ideal portrait and compressed detail range at 85mm and 105mm—all without altering your position or breaking production workflow.
- Constant f/4 Exposure Continuity: Featuring a fixed f/4 maximum aperture across the entire zoom range, this lens locks in your exposure settings perfectly as you reframe your shot. This prevents the abrupt exposure drops and forced ISO spikes common with consumer variable-aperture lenses, providing predictable shutter speed metrics crucial for professional manual video capture and studio lighting environments.
- Upgraded 4-Stop Optical Image Stabilization (IS): To combat handheld camera shake during slow-shutter evening assignments or unsteady video tracking, the updated internal stabilizer core delivers up to 4 stops of shutter speed correction. This allows you to capture crisp, blur-free imagery in ambient low light without immediately relying on a bulky tripod system.
- Elite GMo Aspherical Glass & Air Sphere Coating (ASC): To minimize geometric distortion at the wide end and eliminate color fringing at the telephoto end, the optical path integrates four high-precision, large-diameter Glass-Molded aspherical elements. Supplemented by Canon’s advanced Air Sphere Coating (ASC), the lens drastically reduces internal reflections, ghosting, and flare when shooting directly into bright backlighting.
- Circular 10-Blade Diaphragm for Painterly Bokeh: Setting a new benchmark for standard zooms, the Mark II architecture integrates a specialized 10-blade circular aperture array. Even when stepped down slightly, it renders out-of-focus background elements and specular highlights into incredibly smooth, soft, circular shapes for premium subject isolation.
- Ruggedized L-Series Weatherproof Build with Zoom Lock: Engineered to withstand the elements, the physical outer barrel features extensive weather-resistant seals at all critical joints to ward off dust, moisture, and rain. The front and rear glass features protective fluorine coatings to repel water and oils, while a built-in zoom lock switch prevents “lens creep” when the camera is slung over your shoulder.
