Sigma 16- vs Canon RF100-
Updated July 2026 — Sigma 16- wins on versatility, Canon RF100- wins on autofocus and stabilization.
The Canon RF100-400mm offers superior image quality and autofocus performance, making it the better choice for specific photography needs.
Why Sigma 16- is better
Price
Sigma is $5 cheaper than Canon.
Versatility
Sigma covers a wider focal range.
Weight
Sigma is also lightweight but not emphasized.
Why Canon RF100- is better
Image Quality
Canon has advanced optical corrections.
Autofocus
Canon features fast Nano USM technology.
Stabilization
Canon offers superior image stabilization.
Overall score
Specifications
| Spec | Sigma 16- | Canon RF100- |
|---|---|---|
| Focal Length | 16-300mm | 100-400mm |
| Aperture | F3.5-6.7 | F5.6-8 |
| Stabilization | Yes | Yes |
| Autofocus | Standard | Nano USM |
| Weight | Light | Compact |
Dimension comparison
Overview of the Sigma 16-300mm F3.5-6.7 DC OS
The Sigma 16-300mm F3.5-6.7 DC OS is priced at $694.00, making it an appealing option for photographers seeking versatility in their lens choice. This lens offers a broad zoom range from 16mm to 300mm, catering to both wide-angle and telephoto needs. The product’s description highlights its capability, aiming to deliver a balance between performance and portability.
Designed primarily for contemporary photography, the Sigma lens is ideal for capturing landscapes, portraits, and everything in between. Its optical design ensures that users can achieve quality images across various shooting scenarios. For those who prioritize a wide focal range in a single lens, the Sigma is a solid contender.
Overview of the Canon RF100-400mm F5.6-8 IS USM
The Canon RF100-400mm F5.6-8 IS USM is available for $699.00, positioning it as a slightly more expensive option compared to the Sigma lens. This telephoto lens is specifically designed for Canon’s EOS R series cameras and offers a remarkable zoom range of 100mm to 400mm. This extensive reach makes it particularly useful for wildlife and sports photography, where distance is often a factor.
Additionally, the Canon lens boasts advanced features such as an Optical Image Stabilizer that compensates for up to 5.5 stops of shake correction, enhancing image stability in various shooting conditions. Its compact and lightweight design adds to its portability, making it a great choice for travel photographers.
Image Quality Comparison
When it comes to image quality, the Canon RF100-400mm F5.6-8 IS USM offers distinct advantages. The lens incorporates an Ultra Low Dispersion lens element that effectively reduces chromatic aberration, resulting in crisp and vibrant images. This technology is crucial for maintaining color accuracy across the entire zoom range, especially at longer focal lengths.
In contrast, while the Sigma 16-300mm F3.5-6.7 DC OS offers good image quality, it does not feature specifications that specifically highlight advanced optical corrections. This difference could impact the final image quality, particularly in challenging lighting conditions or when photographing subjects with fine detail. For photographers focused on capturing high-quality images, especially at telephoto ranges, the Canon lens may have an edge.
Autofocus Performance
Autofocus performance is a crucial factor for many photographers, especially in fast-paced environments. The Canon RF100-400mm F5.6-8 IS USM is equipped with Canon’s Nano USM technology, which allows for fast, smooth, and quiet autofocus. This feature is particularly beneficial for wildlife and sports photography, where quick adjustments are often necessary to capture the perfect moment.
On the other hand, the Sigma 16-300mm F3.5-6.7 DC OS does not provide explicit details regarding its autofocus system. While Sigma lenses typically offer reliable autofocus, the advanced capabilities of Canon’s Nano USM may give the RF100-400mm an advantage in speed and responsiveness, which can be critical when timing is essential.
Versatility and Use Cases
The Sigma 16-300mm F3.5-6.7 DC OS excels in versatility, covering a wide range of focal lengths suitable for various photography styles—from landscapes to portraits. Its broader zoom range allows photographers to switch between wide-angle and telephoto shots seamlessly, making it ideal for travel or event photography where different perspectives are needed.
Conversely, the Canon RF100-400mm F5.6-8 IS USM is particularly well-suited for specific applications such as wildlife, sports, and action photography due to its extensive zoom capabilities. While it may not offer the same wide-angle functionality as the Sigma, the Canon lens’s ability to reach up to 400mm makes it a powerful tool for getting closer to distant subjects with clarity.
Weight and Portability
Portability is an essential consideration for photographers who travel frequently. The Canon RF100-400mm F5.6-8 IS USM is described as compact and lightweight, making it easier to carry during long shoots or travels. This feature is particularly appealing to those who need to minimize gear weight without sacrificing image quality.
In contrast, the Sigma 16-300mm F3.5-6.7 DC OS, while also designed for versatility, does not emphasize lightweight features in its description. Given that both lenses are relatively similar in size, the Canon's focus on lightweight design may offer a slight advantage for photographers prioritizing convenience over extended periods.
Price Comparison
The Sigma 16-300mm F3.5-6.7 DC OS is priced at $694.00, while the Canon RF100-400mm F5.6-8 IS USM is slightly higher at $699.00. This makes the Sigma about $5 cheaper, or roughly 0.7% less expensive than the Canon. While the price difference is minimal, it may sway budget-conscious buyers who are looking for a versatile lens without breaking the bank.
However, considering the advanced features and technology present in the Canon lens, such as its superior image stabilization and autofocus performance, the price difference may be justified for those wanting enhanced capabilities.
Which should you buy?
When deciding between the Sigma 16-300mm F3.5-6.7 DC OS and the Canon RF100-400mm F5.6-8 IS USM, your choice should depend on your specific photography needs. If you require a versatile lens that covers a wide range of focal lengths, the Sigma offers excellent value. However, if you are focused on wildlife, sports, or need superior autofocus and image stabilization, the Canon lens may be worth the slightly higher investment. Ultimately, both lenses cater to distinct photographic styles, so choose the one that aligns best with your shooting preferences.

