Canon RF 24-105mm f/4 L IS USM Lens

One-line verdict

Versatile everyday zoom for Canon RF professionals prioritizing constant f/4 and reach over wider f/2.8 apertures of shorter-range alternatives.

How it compares

• vs Canon RF 24-70mm F2.8 L IS USM ($2300–$2600): Canon RF 24-105mm wins on reach (105mm vs 70mm), price, and all-day carry weight; Canon RF 24-70mm f/2.8 wins on aperture (f/2.8 vs f/4) and low-light/shallow-DOF performance
• vs Sony FE 24-70mm f/2.8 GM II ($2300–$2500): Canon RF 24-105mm wins on focal range and value; Sony GM II wins on aperture speed, bokeh rendering, and AF tracking performance
• vs Sony E 16-55mm f/2.8 G ($1300–$1400): Canon RF 24-105mm wins on reach and full-frame coverage; Sony 16-55mm wins on maximum aperture and wide-end field of view on APS-C

AI-summarized review themes

Frequently Praised

• Exceptional sharpness across zoom range, even wide open
• Silent fast Nano USM autofocus, perfect for video and action
• Effective 5-stop image stabilization for handheld low light
• Solid weather-sealed L-series build, reliable outdoors
• Broad 24-105mm range ideal for travel and events

Frequently Criticized

• Front barrel extends and wobbles slightly when zoomed
• Corners softer at f/4 especially wide end
• Noticeable distortion and vignetting uncorrected
• Heavier than variable aperture kit zoom alternatives

Best for

Travel photography, landscape work, professional events, video production

Not for

Low-light portraits needing f/2.8 bokeh, ultra-lightweight hiking kits, budget-conscious beginners

Specifications

Spec	Value
Focal Length	24-105mm
Maximum Aperture	f/4 constant
Minimum Aperture	f/22
Lens Mount	Canon RF
Format Compatibility	Full-Frame
Image Stabilization	Yes, 5 stops
Autofocus	Nano USM
Filter Size	77mm
Dimensions	83.5 x 107.3mm
Weight	700g
Weather Sealing	Yes
Diaphragm Blades	9 rounded
Optical Construction	18 elements / 14 groups

Data sources

• Estimated ~800 purchase reviews via Amazon, B&H Photo, Adorama
• Review period: 2018–2026
• Sentiment confidence: high