Canon RF28mm F2.8 STM Lens, RF Mount, Wide-Angle vs TTArtisan 7.
Updated July 2026 — Canon RF28mm F2.8 STM Lens, RF Mount, Wide-Angle wins on price and focus distance, TTArtisan 7. wins on angle and weight.
The Canon RF28mm F2.8 STM Lens offers superior image quality and versatility, while the TTArtisan 7.5mm F2.0 provides unique creative opportunities at a lower price.
Why Canon RF28mm F2.8 STM Lens, RF Mount, Wide-Angle is better
Image Quality
Canon lens has superior optical performance.
Versatility
Canon lens is suitable for both stills and video.
Build Quality
Canon lens has a compact and lightweight design.
Why TTArtisan 7. is better
Price
TTArtisan lens is significantly cheaper.
Creative Effects
TTArtisan lens offers unique fisheye perspectives.
Low-Light Performance
TTArtisan lens has a wider f/2.0 aperture.
Overall score
Specifications
| Spec | Canon RF28mm F2.8 STM Lens, RF Mount, Wide-Angle | TTArtisan 7. |
|---|---|---|
| Focal Length | 28mm | 7.5mm |
| Max Aperture | f/2.8 | f/2.0 |
| Min Focus | 9 in | 4 in |
| Weight | 0.5 lbs | 0.6 lbs |
| Image Quality | High | Moderate |
Dimension comparison
Overview of the Canon RF28mm F2.8 STM Lens
The Canon RF28mm F2.8 STM Lens is priced at $299.00, making it a solid option for photographers seeking a lightweight and versatile wide-angle lens for full-frame cameras. This lens is designed to provide excellent image quality with features like three aspheric elements and Canon's Super Spectra Coating, which minimizes ghosting and flare. Its minimum focus distance is approximately 9 inches, allowing for close-up photography, while the f/2.8 maximum aperture makes it suitable for various shooting conditions.
Overview of the TTArtisan 7.5mm F2.0 Fisheye Lens
The TTArtisan 7.5mm F2.0 for Sony is significantly cheaper at $139.00, making it about 53% less expensive than the Canon lens. This fisheye lens offers a dramatic 180° diagonal perspective, ideal for creative photography that emphasizes distortion. With a wider f/2.0 aperture, it excels in low-light conditions, making it an excellent choice for astrophotography. Moreover, it features a minimum focusing distance of just 4 inches, allowing for unique close-up shots with significant background distortion.
Image Quality Comparison
When it comes to image quality, the Canon RF28mm F2.8 STM Lens boasts excellent characteristics, including three aspheric elements to enhance optical performance. Canon’s Super Spectra Coating ensures that images are clear and free from ghosting and flare, which is crucial for maintaining clarity in varied lighting conditions. The lens is designed for full-frame cameras, making it versatile for both stills and video.
In contrast, the TTArtisan 7.5mm F2.0's unique fisheye design provides a different kind of image quality, focusing on creative distortion rather than traditional sharpness. While it may not match the Canon lens in terms of overall optical performance, its capability to create extreme perspectives and exaggerated visuals can be particularly appealing for niche photography styles, such as landscapes or fun portraits.
Versatility in Usage
The Canon RF28mm F2.8 STM Lens is versatile, offering everyday 28mm coverage ideal for both still photography and video. It is particularly well-suited for travel and street photography, thanks to its compact design. Furthermore, it can be used effectively on APS-C sensor cameras, providing coverage equivalent to approximately 45mm.
On the other hand, the TTArtisan 7.5mm F2.0 excels in creative applications due to its ultra-wide 180° angle. It is particularly effective in architecture and astrophotography, capturing expansive scenes that other lenses might miss. This lens's distinct fisheye effect allows photographers to explore innovative visual storytelling, making it versatile in a different way.
Build Quality and Design
The Canon RF28mm F2.8 STM Lens is designed to be lightweight and compact, making it easy to carry on shoots without compromising on performance. Its pancake design is both functional and aesthetically pleasing, appealing to users who prefer sleek, unobtrusive gear.
Conversely, the TTArtisan 7.5mm F2.0 features a robust build optimized for its unique functionality. While it may not be as compact as the Canon lens, its design caters to specific needs, such as creating a 'miniature planet' effect with its fisheye capability. Both lenses are well-constructed, but their designs cater to different types of photography.
Pricing and Value
The Canon RF28mm F2.8 STM Lens is priced at $299.00, while the TTArtisan 7.5mm F2.0 is more attractively priced at $139.00. This price difference of $160 means that the TTArtisan lens is about 53% less expensive, making it a compelling option for budget-conscious photographers. The value proposition of each lens varies based on the specific needs of the photographer, with the Canon lens offering premium features and the TTArtisan lens providing unique creative possibilities at a lower price.
Compatibility and Integration
The Canon RF28mm F2.8 STM Lens is designed specifically for full-frame EOS R series cameras, ensuring seamless integration and optimal performance. Additionally, it can be used on APS-C cameras, broadening its compatibility.
In contrast, the TTArtisan 7.5mm F2.0 is compatible with a wide range of Sony APS-C models, including the A6000 series and A7 series. It can also be used on full-frame models, although APS-C mode must be enabled. This extensive compatibility makes it a versatile choice for Sony users looking to explore creative photography.
Which should you buy?
Choosing between the Canon RF28mm F2.8 STM Lens and the TTArtisan 7.5mm F2.0 ultimately depends on your photography needs. If you prefer a high-quality, versatile lens for everyday photography and video, the Canon lens is a strong choice, albeit at a higher price of $299.00. However, if your focus is on creative distortion and unique perspectives, the TTArtisan lens provides exceptional value at $139.00, making it an excellent option for those experimenting with fisheye photography. Consider your shooting style and budget to make the best decision for your camera kit.

