Canon RF45mm F1.2 STM vs Tamron 150-
Updated July 2026 — Tamron 150- leads on price and weight.
The Canon RF45mm F1.2 STM is a more affordable option with excellent low-light performance, while the Tamron 150-500mm offers versatility for distant subjects. Choose based on your specific photography needs.
Why Canon RF45mm F1.2 STM is better
Price
Canon is significantly cheaper at $469.
Portability
Canon is more compact and easier to carry.
Low-light
Canon excels in low-light conditions with f/1.2 aperture.
Why Tamron 150- is better
Versatility
Tamron offers a wide zoom range from 150mm to 500mm.
Image Stabilization
Tamron includes VC for better handheld shooting.
Autofocus
Tamron features advanced VXD autofocus technology.
Overall score
Specifications
| Spec | Canon RF45mm F1.2 STM | Tamron 150- |
|---|---|---|
| Brand | Canon | Tamron |
| Type | Prime | Zoom |
| Max Aperture | f/1.2 | f/5-6.7 |
| Min Focus | 0.3m | 0.6m |
| Image Quality | High | Very High |
Dimension comparison
Overview
When it comes to versatile camera lenses, the Canon RF45mm F1.2 STM and the Tamron 150-500mm f/5-6.7 Di III VC VXD offer distinct features catering to different photography needs. The Canon lens is priced at $469.00, while the Tamron lens retails for $1,199.00, making the Canon option about 61% cheaper. This price difference reflects the unique capabilities and target users of each lens.
Design and Build Quality
The Canon RF45mm F1.2 STM is a standard prime lens that boasts a compact design, made possible by its large-diameter mount and short back focus. This design allows for a reasonably priced lens that still delivers exceptional performance. Conversely, the Tamron 150-500mm lens is an ultra-telephoto zoom lens designed for full-frame mirrorless cameras, offering a significant zoom range from 150mm to 500mm. Despite its expansive capabilities, it remains relatively compact for comfortable handheld shooting. Both lenses present quality build, but their designs cater to different photographic styles, with Canon focusing on portability and Tamron emphasizing versatility.
Optical Performance
Optical performance is a critical factor for any photographer, and here, the Canon RF45mm F1.2 STM shines with its f/1.2 aperture, allowing for superior low-light performance and beautiful bokeh effects that isolate subjects effectively. This lens is particularly well-suited for capturing portraits and lifestyle photography. On the other hand, the Tamron 150-500mm f/5-6.7 excels in its high image quality throughout the entire zoom range. It leverages advanced optics to ensure that even at the extreme 500mm focal length, images remain sharp and vibrant. Each lens offers distinct advantages, making them ideal for different photographic scenarios.
Focusing Mechanism
Focusing capabilities are vital for capturing the perfect shot, and both the Canon RF45mm F1.2 STM and the Tamron 150-500mm lens feature advanced autofocus systems. The Canon lens employs a fast and precise focusing mechanism, ideal for quick portrait setups or spontaneous shots. The Tamron lens, however, features VXD (Voice-coil eXtreme-torque Drive) technology, which provides high-speed and high-precision autofocus, ensuring you never miss a photo opportunity even at longer distances. The difference in focusing systems reflects their intended use, with Canon aimed at still photography and Tamron catering to dynamic shooting situations.
Image Stabilization
Image stabilization is essential, particularly in telephoto shooting. The Tamron 150-500mm lens incorporates VC (Vibration Compensation) technology, which significantly aids in handheld shooting at longer focal lengths. This feature is particularly useful for capturing sharp images at 500mm where even the slightest movements can lead to blurriness. In contrast, the Canon RF45mm F1.2 STM does not specify any image stabilization features, which might limit its usability in certain low-light scenarios where camera shake could be an issue. Therefore, if stabilization is a priority, the Tamron lens has a clear advantage.
Use Cases
The Canon RF45mm F1.2 STM is designed for photographers focused on portraiture and lifestyle imagery. Its wide aperture allows for creative control over depth of field, making it ideal for isolating subjects against soft backgrounds. Conversely, the Tamron 150-500mm lens is tailored for wildlife photography, sports, and other scenarios requiring long-range capabilities. Its extensive zoom range makes it suitable for capturing distant subjects without the need for a tripod, promoting a more casual shooting style. Thus, the choice between these lenses should be guided by your specific photographic needs.
Price Point
Pricing is a significant factor in lens selection, with the Canon RF45mm F1.2 STM priced at $469.00, while the Tamron 150-500mm lens costs $1,199.00. This represents a difference of about $730, which may influence budget-conscious photographers. The Canon lens offers a more accessible entry point for those who want high-quality imagery without breaking the bank. However, for those who require the versatility of a telephoto lens, the investment in the Tamron may be justified considering its advanced features and capabilities.
Which should you buy?
Ultimately, your choice between the Canon RF45mm F1.2 STM and the Tamron 150-500mm f/5-6.7 Di III VC VXD should be guided by your specific photography needs and budget. If you are looking for an affordable, compact lens that excels in low-light conditions and offers beautiful bokeh, the Canon lens is the clear winner at $469.00. However, if your focus is on capturing distant subjects with a versatile zoom range and advanced stabilization, the Tamron lens, despite its higher price of $1,199.00, is worth considering. Each lens serves its purpose well, appealing to different types of photography enthusiasts.

