vsversusfinder

Canon RF24- vs SIGMA 18-

Updated July 2026 — Canon RF24- leads on zoom range and length.

The Canon RF24-105mm offers better value and versatility, while the SIGMA excels in compactness and low-light performance.

Why Canon RF24- is better

Price

Canon is $140 cheaper

Versatility

Canon has a wider zoom range

Stabilization

Canon offers 5 stops of shake correction

Why SIGMA 18- is better

Compactness

SIGMA is the smallest and lightest in its class

Aperture

SIGMA has a constant F2.8 aperture

Build Quality

SIGMA has a rubber-sealed mount

Overall score

Canon RF24-
85
SIGMA 18-
78

Specifications

SpecCanon RF24-SIGMA 18-
Price$459.00$599.99
Max Mag.0.5x1:2.8
Stabilization5 stopsNot specified
Focusing MotorSTMNot specified
Build QualityStandardRubber-sealed

Dimension comparison

Canon RF24-SIGMA 18-

Overview of the Canon RF24-105mm and SIGMA 18-50mm Lenses

When comparing the Canon RF24-105mm F4-7.1 is STM and the SIGMA 18-50mm F2.8 DC DN Contemporary Lens, their differences in price and functionality become immediately apparent. The Canon lens is priced at $459.00, while the SIGMA lens costs $599.99, making the Canon about 23% cheaper. This price difference can influence a buyer's decision, especially when considering the features offered by each lens.

Design and Build Quality

The design and build quality of both lenses cater to different user preferences. The Canon RF24-105mm is known for its compact and lightweight design, making it ideal for travel and everyday use. In contrast, the SIGMA 18-50mm is touted as the smallest and lightest in its class, with a maximum diameter of 69.2mm and a length of 74.5mm, weighing only 300g. This makes the SIGMA lens extremely portable, which may appeal to photographers who prioritize lightweight gear.

Zoom Range and Versatility

When it comes to zoom capabilities, the Canon RF24-105mm offers a versatile range from 24mm to 105mm, making it suitable for various photography styles, including landscapes and portraits. The SIGMA 18-50mm, however, has a shorter zoom range but compensates with a constant aperture of F2.8, allowing for better low-light performance. The choice between these two lenses largely depends on whether a photographer values a wider zoom range or a faster aperture.

Image Stabilization Features

Both lenses provide optical image stabilization, but the Canon RF24-105mm boasts stabilization at up to 5 stops of shake correction. This feature is particularly beneficial for handheld shooting, especially in low-light conditions. The SIGMA lens does not specify its stabilization capabilities but is designed to work well in a variety of environments due to its rubber-sealed mount. The superior stabilization of the Canon lens may sway those who frequently shoot in challenging conditions.

Focusing and Macro Capabilities

Focusing capabilities differ significantly between the two lenses. The Canon RF24-105mm features a leadscrew-type STM motor for smooth autofocus and a minimum focusing distance of 0.66 ft. for standard photography and 0.43 ft. for macro shots. The SIGMA lens, while not as versatile in macro capabilities, allows for close-up shots with a minimum focusing distance of 12.1cm and a maximum magnification of 1:2.8. Photographers who enjoy capturing details in their shots might find the Canon's macro capabilities more appealing.

Intended Use Cases

The intended use of each lens reflects their unique strengths. The Canon RF24-105mm is designed to be an all-rounder, suitable for travel, landscapes, and portraits. Its versatile zoom range and effective stabilization make it an excellent choice for various shooting situations. On the other hand, the SIGMA 18-50mm is aimed more at photographers looking for a compact lens that excels in quality and performance, particularly in urban settings or events. Each lens serves distinct purposes based on the user's shooting style and needs.

Pricing and Value

The pricing strategy of both lenses presents a significant factor in choosing between them. The Canon RF24-105mm is available for $459.00, while the SIGMA 18-50mm is priced at $599.99. The difference of $140 means that the Canon lens is about 23% less expensive. Considering the features provided, the Canon lens appears to offer better value for those who require a versatile lens without breaking the bank. However, the SIGMA lens may justify its higher price for those who prioritize compactness and performance.

Which should you buy?

In conclusion, the choice between the Canon RF24-105mm F4-7.1 is STM and the SIGMA 18-50mm F2.8 DC DN Contemporary Lens hinges on individual needs and preferences. If you are seeking a versatile lens with excellent stabilization and macro capabilities at a lower price, the Canon lens is a strong contender. Conversely, if compactness and a fast aperture are your primary concerns, the SIGMA lens may be worth the extra investment. Ultimately, both lenses cater to different styles of photography, ensuring that there's an option for every photographer's needs.