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7Artisans vs Canon RF45mm F1.2 STM

Updated July 2026 — 7Artisans wins on angle and elements, Canon RF45mm F1.2 STM wins on price and weight.

The 7Artisans 4mm F2.8 offers great value for ultra-wide photography, while the Canon RF45mm F1.2 excels in optical quality and versatility.

Why 7Artisans is better

Price

7Artisans is significantly cheaper at $149.

Weight

7Artisans weighs only 201g, making it more portable.

Fisheye Effect

7Artisans provides a unique fisheye perspective.

Why Canon RF45mm F1.2 STM is better

Aperture

Canon has a larger f/1.2 aperture for low-light performance.

Optical Quality

Canon offers superior image quality and bokeh.

Versatility

Canon is better for portraits and general photography.

Overall score

7Artisans
75
Canon RF45mm F1.2 STM
90

Specifications

Spec7ArtisansCanon RF45mm F1.2 STM
Brand7artisansCanon
CompatibilitySony E-mountCanon RF mount
Focus TypeManualAuto
Build MaterialMetalPlastic
Warranty1 yearN/A

Dimension comparison

7ArtisansCanon RF45mm F1.2 STM

Overview of the 7Artisans 4mm F2.8 Fisheye and Canon RF45mm F1.2 STM

The 7Artisans 4mm F2.8 Fisheye Ultra Wide Angle Lens is priced at $149.00, while the Canon RF45mm F1.2 STM is significantly higher at $469.00. This price difference highlights the distinct purposes and capabilities of each lens, catering to different photography needs and budgets. The 7Artisans lens focuses on ultra-wide angle photography, ideal for capturing expansive landscapes or unique creative shots, while the Canon RF45mm offers a versatile standard focal length with a large f/1.2 aperture, perfect for portraits and low-light conditions.

Design and Build Quality

The 7Artisans 4mm F2.8 boasts a compact design, weighing only 201g, making it portable for travel and outdoor photography. Its construction includes 10 glass elements organized in 8 groups, providing a robust performance with a smooth tactile experience. In contrast, the Canon RF45mm is designed as a larger diameter lens with advanced features, including digital distortion correction and a large-diameter mount for a more refined optical experience. Despite its heavier footprint, the Canon's build quality is engineered for serious photographers who prioritize image quality and performance.

Optical Performance

In terms of optical performance, the 7Artisans lens provides a stunning 225° ultra-wide angle view that creates strong visual impact in images, making it suitable for capturing unique perspectives. It features an aperture range from F2.8 to F16, allowing for creative depth of field effects. On the other hand, the Canon RF45mm features an impressive f/1.2 aperture, enabling superior low-light performance and beautiful bokeh effects. This capability allows photographers to isolate subjects effectively, making the Canon lens ideal for portraiture and artistic photography.

Compatibility

The 7Artisans lens is compatible with a variety of Sony E-mount APS-C mirrorless cameras, including models like A6300, A6400, and A7 series, which makes it an excellent option for Sony users looking for an affordable wide-angle lens. In contrast, the Canon RF45mm is tailored for Canon's RF mount cameras, ensuring optimal performance with models such as the Canon EOS R series. Photographers should consider their camera systems when choosing between these two lenses to ensure compatibility and performance.

Use Cases

The 7Artisans 4mm F2.8 is particularly suited for landscape, architecture, and creative photography, where an ultra-wide perspective can enhance storytelling and visual impact. Its fisheye design allows photographers to experiment with distortion and unique framing. Alternatively, the Canon RF45mm excels in portrait photography, lifestyle shots, and any situation where depth of field is essential. The ability to shoot at f/1.2 means it handles low-light conditions remarkably well, making it a versatile tool for various shooting scenarios.

Price and Value

At $149.00, the 7Artisans 4mm F2.8 offers exceptional value for those seeking an entry-level fisheye lens. Its price is about 68% lower than the Canon RF45mm, which retails for $469.00. This significant price gap may appeal to budding photographers or those on a budget who want to explore creative photography without a hefty investment. However, the Canon lens justifies its higher price through superior optics and capabilities, making it a worthwhile investment for serious photographers.

Reputation and Customer Service

The 7Artisans lens comes backed by a one-year free repair service, demonstrating the brand's commitment to customer satisfaction and support. Although specific sales ranks for the lenses were not provided, the Canon RF45mm is known for its strong reputation among users, especially for its optical excellence. Canon has long been a trusted name in photography, and this lens's features align well with the needs of professional users, suggesting a robust track record in terms of performance and reliability.

Which should you buy?

In conclusion, the choice between the 7Artisans 4mm F2.8 Fisheye and the Canon RF45mm F1.2 STM primarily depends on your photography needs and budget. The 7Artisans lens is an excellent choice for those seeking an affordable, ultra-wide angle option, offering unique creative possibilities at a lower price point. Conversely, the Canon lens provides superior optical quality, versatility, and low-light performance, making it ideal for serious photographers willing to invest more for enhanced capabilities.