Canon EF 75- vs SIGMA 18-
Updated July 2026 — Canon EF 75- wins on focal length and weight, SIGMA 18- wins on diameter and length.
The Canon EF 75-300mm lens is a budget-friendly option for distant photography, while the SIGMA 18-50mm lens excels in versatility and low-light performance.
Why Canon EF 75- is better
Price
Canon lens is significantly cheaper at $199.99.
Focal Length
Canon lens offers a longer focal length of 75-300mm.
Weight
Canon lens is lighter at 16.8 ounces.
Why SIGMA 18- is better
Aperture
SIGMA lens has a constant f/2.8 aperture for better low-light performance.
Build Quality
SIGMA lens is rubber-sealed for weather resistance.
Close-Up
SIGMA lens allows for closer focusing at 12.1cm.
Overall score
Specifications
| Spec | Canon EF 75- | SIGMA 18- |
|---|---|---|
| Price | $199.99 | $599.99 |
| Image Stabilization | No | Yes |
| Warranty | 1 Year | 1 Year |
| Max Magnification | 1:4 | 1:2.8 |
| Zoom Type | Rotating | Linear |
Dimension comparison
Introduction to the Canon EF 75-300mm and Sigma 18-50mm
The Canon EF 75-300mm f/4-5.6 III Telephoto Zoom Lens and the SIGMA 18-50mm F2.8 DC DN Contemporary Lens are both popular choices among photographers, but they cater to different needs and preferences. The Canon lens is priced at $199.99, making it significantly more affordable compared to the SIGMA lens, which retails for $599.99. This article will explore their features, usability, and overall value to help you decide which lens is right for you.
Optical Performance
In terms of optical performance, the Canon EF 75-300mm lens offers a focal length range of 75-300mm with a maximum aperture of f/4-5.6. This zoom lens is designed for capturing distant subjects, making it suitable for wildlife and sports photography. On the other hand, the SIGMA 18-50mm lens provides a constant f/2.8 aperture, resulting in superior low-light performance and depth of field control. The ability to shoot at a wider aperture makes the SIGMA lens ideal for portrait and indoor photography, where lighting conditions may vary.
Build Quality and Design
The Canon EF 75-300mm lens measures 2.8 inches in diameter and is 4.8 inches long, weighing 16.8 ounces. It is constructed with a focus on durability but lacks advanced features like image stabilization. In contrast, the SIGMA 18-50mm lens is compact, boasting a maximum diameter of 69.2mm and a length of 74.5mm, while weighing only 300g. Additionally, the SIGMA lens is rubber-sealed, making it more suitable for various environmental conditions. The difference in design reflects the intended use of each lens; the Canon lens is more traditional, while the SIGMA lens embraces modern lightweight technology.
Focusing Capabilities
When it comes to focusing capabilities, the Canon EF 75-300mm lens has a closest focusing distance of 4.9 feet, enabling photographers to capture subjects that are relatively close. However, it does not feature image stabilization, which could be a drawback for handheld shooting at longer focal lengths. Conversely, the SIGMA 18-50mm lens offers a minimum focusing distance of 12.1cm, allowing for impressive close-up shots with a maximum magnification of 1:2.8. This feature enhances its versatility, particularly for macro photography, making it a more adaptable choice for various shooting scenarios.
Intended Use and Versatility
The intended use of each lens plays a crucial role in their overall appeal. The Canon EF 75-300mm lens is specifically designed for Canon SLR cameras and excels in capturing distant subjects, making it ideal for sports, wildlife, and nature photography. Its long focal length provides a narrow angle of view, which can create dramatic images. In contrast, the SIGMA 18-50mm lens is tailored for Canon RF mount mirrorless cameras, making it a contemporary choice for photographers seeking a versatile, all-in-one solution for everyday shooting, landscapes, and portraits. The difference in intended use may significantly influence your purchasing decision.
Price Comparison
The price difference between the two lenses is substantial. The Canon EF 75-300mm lens is priced at $199.99, while the SIGMA 18-50mm lens costs $599.99. This means that the Canon lens is about 67% cheaper than the SIGMA lens. For photographers on a budget or those just starting, the Canon lens offers an attractive option without compromising on quality for its intended purpose. However, those willing to invest more for advanced features and performance may find the SIGMA lens worth the higher price tag.
Customer Support and Warranty
Both lenses come with a one-year warranty, providing peace of mind for potential buyers. Canon's established reputation in the photography industry ensures reliable customer support and service. Similarly, SIGMA is known for its commitment to quality and service, making both brands trustworthy choices. The warranty offered is standard for the industry, but the overall customer experience may vary based on location and support channels.
User Experience and Reviews
While specific sales ranks and bestseller ranks were not provided, the popularity of each lens can often be gauged through user reviews and experiences. Photographers using the Canon EF 75-300mm lens frequently mention its value for money and effectiveness in capturing distant subjects. However, some users might find its lack of advanced features limiting. Conversely, the SIGMA 18-50mm lens is often praised for its versatility and compact design, making it a favorite among mirrorless camera users who appreciate the balance of quality and portability.
Which should you buy?
Choosing between the Canon EF 75-300mm and the SIGMA 18-50mm ultimately boils down to your specific needs and budget. If you require a budget-friendly lens primarily for capturing distant subjects and are using a Canon SLR camera, the Canon EF 75-300mm lens is an excellent choice. However, if you are looking for a versatile, high-performance lens for a Canon RF mount mirrorless camera and are willing to invest more, the SIGMA 18-50mm lens provides superior low-light performance and adaptability for various shooting styles. Your decision should reflect both your photographic needs and your financial considerations.

