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Canon RF45mm F1.2 STM vs Tamron 150-

Updated July 2026 — Tamron 150- leads on price and focal length.

The Canon RF45mm F1.2 STM is a more affordable and portable option, while the Tamron 150-500mm F/5-6.7 excels in versatility and zoom range.

Why Canon RF45mm F1.2 STM is better

Price

Canon is significantly cheaper at $469.

Portability

Canon is more compact and lightweight.

Low-light performance

Canon offers exceptional low-light capabilities.

Why Tamron 150- is better

Zoom range

Tamron provides a versatile 150-500mm zoom.

Optical quality

Tamron has edge-to-edge clarity with BBAR-G2 coating.

Stabilization

Tamron includes VC image stabilization for better performance.

Overall score

Canon RF45mm F1.2 STM
75
Tamron 150-
85

Specifications

SpecCanon RF45mm F1.2 STMTamron 150-
Aperturef/1.2f/5-6.7
Focal Length45mm150-500mm
WeightLightModerate
StabilizationNoYes
Build QualityCompactMoisture-resistant

Dimension comparison

Canon RF45mm F1.2 STMTamron 150-

Overview of the Canon RF45mm F1.2 STM and Tamron 150-500mm F/5-6.7

The Canon RF45mm F1.2 STM is priced at $469.00, while the Tamron 150-500mm F/5-6.7 is available for $1,199.00, making the Canon lens about 61% cheaper. Both lenses cater to different photography needs, with the Canon offering a standard prime lens experience and the Tamron providing an extensive zoom range suited for telephoto photography. Understanding their features and intended uses can help you choose the right lens for your photography style.

Design and Build Quality

The Canon RF45mm F1.2 STM is designed as a compact standard prime lens with an impressive f/1.2 aperture. This design allows for a lightweight and portable option, making it ideal for creators who value ease of use. In contrast, the Tamron 150-500mm F/5-6.7 boasts a compact full-frame design, measuring just 8.4 inches when retracted and extending to 11.3 inches. The Tamron lens also features moisture-resistant construction, enhancing its durability for various shooting conditions. While both lenses are built for performance, the Canon is more portable, while the Tamron offers a robust design suitable for outdoor photography.

Optical Performance

When it comes to optical performance, both lenses excel in their respective categories. The Canon RF45mm F1.2 STM is praised for its wide aperture that allows for exceptional low-light performance and beautiful bokeh, which can isolate subjects from the background. The lens effectively reduces aberrations thanks to its PMo aspheric lens, providing clear and sharp images. On the other hand, the Tamron 150-500mm F/5-6.7 is engineered for high-resolution images with edge-to-edge clarity, supported by its BBAR-G2 coating that enhances contrast and reduces reflections. While the Canon shines in portrait and lifestyle photography, the Tamron is ideal for capturing distant subjects with remarkable detail.

Focusing and Stabilization

Focusing capabilities differ significantly between the two lenses. The Canon RF45mm F1.2 STM is designed for quick and responsive autofocus that benefits portrait and everyday photography. In contrast, the Tamron 150-500mm F/5-6.7 features a high-speed linear motor autofocus mechanism, specifically designed for super-telephoto shooting. Additionally, the Tamron lens incorporates VC image stabilization, which is vital for reducing blur when shooting at long focal lengths. This makes the Tamron particularly advantageous for wildlife or sports photography, where capturing fast-moving subjects with precision is crucial.

Versatility and Use Cases

Versatility is one of the main distinctions between the Canon RF45mm F1.2 STM and the Tamron 150-500mm F/5-6.7. The Canon lens is excellent for portraits, lifestyle shots, and general photography, offering a fixed focal length that encourages creativity and focus on composition. Meanwhile, the Tamron lens provides a zoom range from 150mm to 500mm, allowing photographers to capture a wide variety of scenes from distant landscapes to close-up wildlife shots. It even reaches 750mm on crop-sensor cameras, making it a powerful tool for any photographer looking to explore super-telephoto shooting without the bulk of traditional long lenses.

Price and Value

The Canon RF45mm F1.2 STM is priced at $469.00, offering significant value for those seeking a high-quality prime lens. The Tamron 150-500mm F/5-6.7, on the other hand, is priced at $1,199.00, which includes its advanced features suitable for telephoto photography. The Canon lens is about 61% less expensive than the Tamron, making it a more budget-friendly option for enthusiasts or those just starting. However, the Tamron lens justifies its higher price point with its versatility and capabilities for super-telephoto shooting, catering to serious photographers who require a zoom lens.

Compatibility and Use

The Canon RF45mm F1.2 STM is designed for Canon's RF mount, ensuring seamless integration with Canon mirrorless cameras. In contrast, the Tamron 150-500mm F/5-6.7 is specifically made for Nikon Z mount mirrorless cameras, making it essential to consider your camera system before making a purchase. Both lenses are tailored to their respective brands, providing optimized performance and compatibility for users within those ecosystems. This means that photographers must choose based on their existing camera systems and the type of photography they wish to pursue.

Which should you buy?

Choosing between the Canon RF45mm F1.2 STM and the Tamron 150-500mm F/5-6.7 ultimately depends on your photography needs and budget. The Canon lens offers exceptional low-light performance, portability, and is significantly more affordable at $469.00, making it ideal for casual shooters and portrait photographers. Conversely, the Tamron lens, with its impressive 150-500mm zoom range and advanced features, is better suited for serious photographers who require versatility for wildlife and sports photography, despite its higher price of $1,199.00. Consider your shooting style, compatibility with your camera, and specific photography goals to make the best choice.