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Canon RF28mm F2.8 STM Lens, RF Mount, Wide-Angle vs Tamron 70-

Updated July 2026 — Tamron 70- leads on focus dist. and filter size.

The Canon RF28mm F2.8 STM Lens is a more affordable and portable option, while the Tamron 70-300mm offers greater versatility for distant subjects.

Why Canon RF28mm F2.8 STM Lens, RF Mount, Wide-Angle is better

Price

Canon lens is $299, cheaper than Tamron's $399.

Portability

Canon is lightweight and compact, ideal for travel.

Wide-Angle

Canon offers a 28mm wide-angle perspective.

Why Tamron 70- is better

Zoom Range

Tamron provides a versatile 70-300mm range.

Image Quality

Tamron's 15 elements enhance resolution and reduce aberrations.

Autofocus

Tamron features a quiet RXD autofocus system.

Overall score

Canon RF28mm F2.8 STM Lens, RF Mount, Wide-Angle
85
Tamron 70-
90

Specifications

SpecCanon RF28mm F2.8 STM Lens, RF Mount, Wide-AngleTamron 70-
Focal Length28mm70-300mm
Max Aperturef/2.8f/4.5-6.3
Min Focus Dist.9 in31.5 in
Elements315
Weight0.5 lbs1.2 lbs

Dimension comparison

Canon RF28mm F2.8 STM Lens, RF Mount, Wide-AngleTamron 70-

Overview of the Canon RF28mm F2.8 STM Lens

The Canon RF28mm F2.8 STM Lens is priced at $299.00, making it a lightweight, compact option for full-frame camera users. Designed for versatility, this lens is ideal for street photography, travel, and videography. Its focal length of 28mm provides a wide-angle perspective, which is particularly useful for capturing expansive scenes and storytelling through imagery.

This lens is designed with three aspheric elements and Canon's Super Spectra Coating, ensuring excellent image quality by minimizing ghosting and flare. The minimum focus distance is approximately 9 inches, offering a maximum magnification of 0.17x. These features make the Canon RF28mm F2.8 STM Lens a great entry point for photographers looking to explore wide-angle photography without breaking the bank.

Overview of the Tamron 70-300mm F/4.5-6.3 Di III RXD

The Tamron 70-300mm F/4.5-6.3 Di III RXD is priced at $399.00, offering a longer focal length range that makes it suitable for various shooting scenarios. This lens is designed for Sony's E-mount mirrorless cameras and is particularly advantageous for wildlife and sports photography due to its telephoto capabilities.

With a versatile zoom range from 70mm to 300mm, this lens allows for creative framing of subjects that are far away. It utilizes 15 elements arranged in 10 groups to correct chromatic aberrations and enhance image quality. The lens also features a Rapid eXtra-silent stepping Drive (RXD) for quiet autofocus, making it an excellent choice for capturing spontaneous moments without disturbing the scene.

Weight and Portability

The Canon RF28mm F2.8 STM Lens is designed with portability in mind, making it an excellent companion for photographers on the go. It is a pancake lens, which contributes to its lightweight nature, allowing it to be easily carried around without adding significant bulk to your camera setup.

In contrast, while the Tamron 70-300mm is designed to be the world's smallest and lightest in its category, it still weighs 19.2 oz, which is considerably heavier than the Canon lens. The compact design of the Canon RF28mm makes it more convenient for everyday shooting and travel, whereas the Tamron lens, while portable for a telephoto, might be bulkier for casual outings.

Image Quality and Performance

When it comes to image quality, both lenses have their strengths. The Canon RF28mm features advanced optical construction with three aspheric elements and Canon Super Spectra Coating, resulting in sharp and clear images with minimized ghosting and flare. This lens excels in conditions where lighting might be challenging, making it suitable for various environments.

On the other hand, the Tamron 70-300mm lens incorporates 15 elements in 10 groups, designed specifically to enhance resolution and reduce aberrations. The lens's ability to produce stunning bokeh and high-resolution images positions it well for portrait and wildlife photography. While both lenses offer excellent image quality, the choice between them will depend on the type of photography you intend to pursue.

Minimum Focus Distance

The Canon RF28mm has a minimum focus distance of approximately 9 inches, allowing for detailed close-up shots that can capture intricate details. This feature is particularly useful in street photography and when photographing smaller subjects, as it enables creative framing without needing to step back.

In contrast, the Tamron 70-300mm lens provides up-close shooting performance with capabilities of 31.5 inches at its wide end and 59.1 inches at its telephoto end. While it excels in capturing distant subjects, its minimum focus distance is significantly farther than that of the Canon lens, which may limit its versatility for close-up photography.

Price Comparison

The Canon RF28mm F2.8 STM Lens is priced at $299.00, whereas the Tamron 70-300mm F/4.5-6.3 Di III RXD is listed at $399.00. This means that the Canon lens is about 25% cheaper than the Tamron lens, making it a more budget-friendly option for photographers who may be looking for quality without the higher price tag.

The price difference may influence your decision depending on your budget and the specific features you prioritize in a lens. If you're focused on a wide-angle perspective for landscapes or everyday photography, the Canon RF28mm offers great value. However, if your photography demands a versatile zoom range, the investment in the Tamron lens may be justified.

Versatility in Photography

The versatility of the Canon RF28mm shines in its ability to handle both stills and video with ease, making it a reliable option for content creators. Its wide-angle perspective is ideal for capturing expansive landscapes, architecture, and documentary-style shots, while its compact design makes it an excellent choice for travel and street photography.

Conversely, the Tamron 70-300mm lens offers remarkable flexibility for various genres, including wildlife, sports, and portrait photography. Its zoom range allows photographers to adapt to different scenarios without needing to switch lenses. This level of versatility makes the Tamron lens particularly appealing for those who frequently shoot in diverse environments.

Which should you buy?

When deciding between the Canon RF28mm F2.8 STM Lens and the Tamron 70-300mm F/4.5-6.3 Di III RXD, consider your photography style and needs. The Canon lens is an excellent choice for those who prioritize portability, wide-angle photography, and budget-friendliness, making it ideal for street and travel photography.

On the other hand, if you require a telephoto lens that offers a wide zoom range for capturing distant subjects, the Tamron lens is worth the investment despite its higher price. Ultimately, your selection should align with your specific photographic pursuits and the features that matter most to you.