Canon RF vs TTARTISAN
Updated July 2026 — Canon RF wins on focus speed and aperture, TTARTISAN wins on price and weight.
The Canon RF 50mm F1.8 STM lens offers superior low-light performance and autofocus speed, while the TTARTISAN 40mm f2 lens is a more budget-friendly and portable option.
Why Canon RF is better
Low Light
Wider f/1.8 aperture for better low-light performance
Autofocus
Faster and quieter autofocus system
Image Quality
Superior sharpness and contrast due to advanced coatings
Why TTARTISAN is better
Price
More affordable at $168.00
Weight
Lighter at 167g for easier portability
Build Quality
Crafted from durable aerospace aluminum
Overall score
Specifications
| Spec | Canon RF | TTARTISAN |
|---|---|---|
| Aperture | f/1.8 | f/2 |
| Autofocus | STM | Advanced AF |
| Weight | 200g | 167g |
| Mount | RF | Z |
| Minimum Focus | 0.45m | 0.4m |
Dimension comparison
Overview of the Canon RF 50mm F1.8 STM Lens
The Canon RF 50mm F1.8 STM lens is designed for EOS R-Series cameras and offers a wide f/1.8 aperture that enhances low-light performance and provides beautiful background blur. Weighing in at a compact size, this lens is ideal for portraits and general photography. Priced at $219.00, it is a versatile option for those looking to elevate their photography game. The lens features an advanced STM motor, ensuring smooth and nearly silent autofocus, which is particularly advantageous for capturing video.
Overview of the TTARTISAN 40mm f2 Lens for Z Mount
The TTARTISAN 40mm f2 lens is an ultra-portable option crafted from premium aerospace aluminum, weighing only 167 grams, making it easy to carry on any adventure. This lens is priced at $168.00, approximately 17% cheaper than the Canon RF 50mm lens. It offers a bright f/2 aperture that excels in low-light conditions, allowing for stunning clarity and vibrant colors. With a minimum focus distance of 0.4 meters and advanced autofocus capabilities, it is designed for capturing authentic perspectives, making it a solid choice for photographers using Nikon Z-mount cameras.
Build Quality and Design
The Canon RF 50mm F1.8 STM lens is known for its compact and lightweight design, which makes it user-friendly for photographers of all levels. The aspheric lens element contributes to its sharp image quality and minimizes distortion, enhancing overall performance. In contrast, the TTARTISAN 40mm f2 lens is made from a robust 5052 aerospace aluminum, ensuring durability without sacrificing portability. Its design is also minimalistic, aligning with modern aesthetic preferences. The weight difference is significant, as the TTARTISAN lens is lighter, making it more convenient for on-the-go shooting.
Optical Performance
Optically, the Canon RF 50mm F1.8 STM lens excels with its wide f/1.8 aperture, which is ideal for creating a shallow depth of field, making it perfect for portraiture and artistic shots. The Super Spectra Coating helps reduce flare and ghosting, enhancing contrast and color accuracy. On the other hand, the TTARTISAN 40mm f2 lens, while slightly slower at f/2, compensates with its bright aperture that performs well in low light. With a 57° full-frame angle, it provides a natural perspective similar to human vision, which can be beneficial for capturing realistic images.
Autofocus Capabilities
The Canon RF 50mm F1.8 STM lens features an STM motor that provides fast and silent autofocus, making it suitable for both still photography and video work. This is particularly useful for portrait photographers who wish to capture subjects without drawing attention to the camera. The TTARTISAN 40mm f2 lens also boasts advanced autofocus performance, including face and eye tracking. This ensures that subjects remain in focus, making it an excellent choice for dynamic shooting situations. While both lenses offer sophisticated autofocus systems, the Canon lens has a slight edge in speed and silence.
Versatility and Use Cases
The versatility of the Canon RF 50mm F1.8 STM lens makes it suitable for various photography styles, from portraits to street photography. Its ability to create striking background bokeh enhances its appeal to creative photographers. The TTARTISAN 40mm f2 lens, with its true-to-life perspectives, is equally versatile, especially for general photography and videography. Its compact design allows for spontaneous shooting situations, while the f/2 aperture provides enough light for various scenarios. Both lenses are excellent for different types of photography, but the choice may depend on the specific needs of the photographer.
Price Comparison
The Canon RF 50mm F1.8 STM lens is priced at $219.00, while the TTARTISAN 40mm f2 lens is more budget-friendly at $168.00. This price difference of $51 highlights the value proposition offered by the TTARTISAN lens, making it a compelling option for those who are budget-conscious. The lower price does not come at the cost of quality, as the TTARTISAN lens delivers impressive performance for its price point. When comparing the two, budget and brand preference may significantly influence a buyer's decision.
Which should you buy?
Choosing between the Canon RF 50mm F1.8 STM lens and the TTARTISAN 40mm f2 lens ultimately comes down to your specific photography needs and budget. If you are looking for a versatile lens with exceptional low-light performance and fast autofocus, the Canon RF 50mm may be the better choice, despite its higher price. However, if portability, budget, and a unique focal length are more important, the TTARTISAN 40mm f2 lens offers significant advantages without compromising on quality. Both lenses have their merits, making them excellent choices in their respective categories.

