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Canon RF45mm F1.2 STM vs TTArtisan AF

Updated July 2026 — Canon RF45mm F1.2 STM wins on weight and build, TTArtisan AF wins on price and size.

The Canon RF45mm F1.2 STM offers superior image quality and low-light performance, making it the better choice for serious photographers. The TTArtisan AF 56mm F1.8 is a budget-friendly option with decent performance.

Why Canon RF45mm F1.2 STM is better

Image Quality

Canon's f/1.2 aperture provides better low-light performance.

Build Quality

Canon lens has a more premium feel and durability.

Bokeh Effect

Canon creates a more pronounced bokeh for portraits.

Why TTArtisan AF is better

Price

TTArtisan is significantly cheaper.

Weight

TTArtisan is lighter and more portable.

Ease of Use

TTArtisan is user-friendly for casual photographers.

Overall score

Canon RF45mm F1.2 STM
88
TTArtisan AF
75

Specifications

SpecCanon RF45mm F1.2 STMTTArtisan AF
Aperturef/1.2f/1.8
Focal Length45mm56mm
Mount TypeRFXF
AutofocusYesYes
MaterialPlastic/MetalMetal

Dimension comparison

Canon RF45mm F1.2 STMTTArtisan AF

Overview of the Canon RF45mm F1.2 STM

The Canon RF45mm F1.2 STM is a high-performance lens designed for creators seeking exceptional image quality and versatility. Priced at $469.00, this standard 45mm prime lens features a fast f/1.2 aperture, making it ideal for low-light photography and achieving a beautiful bokeh effect. With its compact design and advanced optics, the RF45mm lens stands out as a premium choice for photographers looking to enhance their craft.

The lens boasts a large-diameter mount and short back focus, which work together with digital distortion correction to deliver impressive image quality. The RF45mm is particularly beneficial for portrait and lifestyle photography, offering a three-dimensional look that effectively isolates subjects from their backgrounds. With Canon's innovative approach to lens design, this model promises creators an economical yet powerful tool for various photography needs.

Overview of the TTArtisan AF 56mm F1.8 Fuji XF

The TTArtisan AF 56mm F1.8 Fuji XF lens offers an impressive combination of performance and affordability, retailing at just $129.00. This lens is designed for Fujifilm X-mount cameras, making it a perfect fit for users of models like the XS10, X-A5, and X-T4. With its f/1.8 aperture, the lens allows for good low-light performance and provides a pleasing bokeh effect, although it does not match the capabilities of the Canon RF45mm.

The AF 56mm F1.8 features a STM stepping motor for smooth focusing and includes eye recognition focus technology, making it easy to capture sharp images and videos. Additionally, the lens barrel and mount are crafted from aviation aluminum, giving it a sturdy, retro aesthetic that complements Fujifilm cameras beautifully. This lens is a solid choice for those who want an affordable option without sacrificing too much in terms of quality.

Image Quality Comparison

In terms of image quality, the Canon RF45mm F1.2 STM excels with its f/1.2 aperture, allowing for faster shutter speeds and better performance in low-light conditions compared to the TTArtisan AF 56mm F1.8, which has an f/1.8 aperture. The Canon lens is designed to reduce aberrations using a PMo aspheric lens, a first for Canon in a f/1.2 lens, ensuring sharper and clearer images.

While the TTArtisan lens also offers decent image quality with its f/1.8 aperture, it cannot quite match the Canon's ability to create a three-dimensional look due to its wider aperture. The RF45mm provides a more pronounced bokeh effect, making it ideal for portrait photography, whereas the AF 56mm is better suited for general use and casual photography.

Design and Build Quality

The design and build quality of the Canon RF45mm F1.2 STM reflect its premium positioning in the market. Its compact design, combined with a large-diameter mount, makes it not only functional but also aesthetically pleasing. The lens is built to last, providing durability that is expected from Canon products.

On the other hand, the TTArtisan AF 56mm F1.8 also boasts a sturdy design, with its aviation aluminum lens barrel providing a metal texture that enhances its retro vibe. However, the overall build quality may not feel as robust as that of the Canon lens. While both lenses are designed to be user-friendly, those looking for a more professional feel might gravitate towards the RF45mm.

Autofocus Performance

The autofocus performance of both lenses showcases their respective technologies. The Canon RF45mm F1.2 STM uses advanced focusing mechanisms that ensure quick and accurate autofocus, making it suitable for various shooting scenarios, including fast-paced events.

Conversely, the TTArtisan AF 56mm F1.8 features a STM stepping motor, which allows for smooth focusing. Its eye recognition focus is particularly useful for portrait photography, enabling users to capture sharp images with ease. However, while the TTArtisan offers reliable autofocus, the overall speed and accuracy of the Canon lens's autofocus system may outshine it, especially in challenging lighting conditions.

Price Comparison

When considering price, the differences between the two lenses are notable. The Canon RF45mm F1.2 STM is priced at $469.00, while the TTArtisan AF 56mm F1.8 is considerably more affordable at $129.00. This makes the TTArtisan lens about 73% cheaper than the Canon, which may appeal to budget-conscious photographers or those just starting in the field.

However, it's essential to weigh the price against performance and features. While the TTArtisan offers excellent value for its price, the Canon lens provides superior image quality and capabilities that justify its higher cost. Photographers should consider their specific needs and budget before making a decision.

Target Audience

The Canon RF45mm F1.2 STM is targeted towards professional photographers and serious enthusiasts who require high-quality optics for various applications, particularly in low-light environments. Its features and price point make it suitable for those who are willing to invest in a premium lens to elevate their photography.

In contrast, the TTArtisan AF 56mm F1.8 is ideal for hobbyists and casual photographers who want a budget-friendly option without compromising too much on quality. Its ease of use and solid performance make it a great choice for those using Fujifilm cameras, particularly for portraiture and general photography.

Which should you buy?

Ultimately, your choice between the Canon RF45mm F1.2 STM and the TTArtisan AF 56mm F1.8 will depend on your specific photography needs and budget. If you prioritize exceptional image quality, low-light performance, and advanced features, the Canon lens is worth the investment. However, if you're seeking a more budget-friendly option that still delivers good performance for everyday photography, the TTArtisan lens is an excellent choice. Each lens has its strengths, ensuring that both can find a place in a photographer's kit based on their individual requirements.