Canon RF-S18-45mm F4.5-6.3 Lens vs VILTROX 56mm F1.7 Fuji XF, 56mm f/1.7 Fuji X Mount Lens, APS-C Lens for Fujifilm X-Mount X-T5 X-T4 X-T30 II X-S10 X-T200 X-T30 X-H1 X-H2 X-T3 X-T100
Updated June 2026 — Canon RF-S18-45mm F4.5-6.3 Lens wins on image stabilization and price, VILTROX 56mm F1.7 Fuji XF, 56mm f/1.7 Fuji X Mount Lens, APS-C Lens for Fujifilm X-Mount X-T5 X-T4 X-T30 II X-S10 X-T200 X-T30 X-H1 X-H2 X-T3 X-T100 wins on aperture and low-light performance and build quality and portability.
The Canon RF-S18-45mm F4.5-6.3 Lens offers superior value, versatility, and stabilization for everyday use, while the VILTROX 56mm F1.7 Fuji XF excels in portrait quality and low-light performance on Fujifilm systems.
Why Canon RF-S18-45mm F4.5-6.3 Lens is better
Price
The Canon lens is priced at $87.00, nearly 50% cheaper than the VILTROX lens at $180.00.
Image Stabilization
The Canon lens provides up to 4 stops of optical image stabilization, increasing to 6 stops with coordinated IS on EOS R-series cameras; the VILTROX lens has no image stabilization.
Focal Length Flexibility
The Canon RF-S18-45mm is a versatile zoom lens with a 18–45mm range, while the VILTROX is a fixed 56mm prime lens with an 85mm equivalent focal length.
Why VILTROX 56mm F1.7 Fuji XF, 56mm f/1.7 Fuji X Mount Lens, APS-C Lens for Fujifilm X-Mount X-T5 X-T4 X-T30 II X-S10 X-T200 X-T30 X-H1 X-H2 X-T3 X-T100 is better
Aperture and Low-Light Performance
The VILTROX 56mm F1.7 has a bright constant f/1.7 aperture, enabling superior low-light performance and shallower depth of field compared to the Canon's variable f/4.5–6.3 aperture.
Bokeh Quality
The VILTROX features a nine-blade diaphragm for smooth, pleasing bokeh, while the Canon does not specify bokeh characteristics.
Portability and Weight
The VILTROX weighs only 171g, making it extremely lightweight for travel and everyday use, slightly lighter than the Canon despite its larger aperture.
Overall score
Specifications
| Spec | Canon RF-S18-45mm F4.5-6.3 Lens | VILTROX 56mm F1.7 Fuji XF, 56mm f/1.7 Fuji X Mount Lens, APS-C Lens for Fujifilm X-Mount X-T5 X-T4 X-T30 II X-S10 X-T200 X-T30 X-H1 X-H2 X-T3 X-T100 |
|---|---|---|
| Lens Type | Zoom | Prime |
| Focal Length | 18–45mm | 56mm (85mm equivalent) |
| Maximum Aperture | f/4.5–6.3 (variable) | f/1.7 (constant) |
| Image Stabilization | Optical (up to 4 stops, 6 with IBIS) | None |
| Autofocus Motor | STM | STM |
| Weight | Approx. 280g | 171g |
| Compatibility | Canon RF-mount (APS-C & full-frame with crop mode) | Fujifilm X-mount (X-T5, X-T4, X-S10, etc.) |
| Special Features | Retractable design, dual pixel AF coverage, coordinated IS | Micro-USB firmware update port, nine-blade diaphragm |
Dimension comparison
Price Comparison
The Canon RF-S18-45mm F4.5-6.3 Lens is priced at $87.00, while the VILTROX 56mm F1.7 Fuji XF costs $180.00—nearly double the price. This represents a difference of $93.00, or about 107% more expensive for the VILTROX lens. The Canon lens is significantly more budget-friendly, offering a cost advantage that could be decisive for buyers seeking value without sacrificing core functionality.
Lens Type and Focal Length
The Canon RF-S18-45mm F4.5-6.3 Lens is a standard zoom lens with a versatile 18–45mm focal range, ideal for everyday shooting, landscapes, and casual portraits. In contrast, the VILTROX 56mm F1.7 Fuji XF is a prime lens with a fixed 56mm focal length, delivering an 85mm equivalent on APS-C sensors—perfect for portrait photography and tighter compositions. The Canon offers flexibility across multiple scenes through zooming, while the VILTROX excels in specialized, high-quality portrait work due to its fixed focal length and wide aperture.
Aperture and Low-Light Performance
The Canon RF-S18-45mm F4.5-6.3 Lens has a variable maximum aperture of f/4.5–6.3, which limits its performance in low-light conditions. The VILTROX 56mm F1.7 Fuji XF, however, features a bright constant f/1.7 maximum aperture, enabling superior low-light capability and greater control over depth of field. This allows the VILTROX to create shallower depth of field effects and capture images in dim environments where the Canon would struggle without additional lighting or slower shutter speeds.
Image Stabilization
The Canon RF-S18-45mm F4.5-6.3 Lens includes optical image stabilization that provides up to 4 stops of shake correction. When paired with EOS R-series cameras featuring in-body image stabilization (IBIS), this can increase to up to 6 stops of correction through coordinated IS. The VILTROX 56mm F1.7 Fuji XF does not mention any form of image stabilization in its specifications. For handheld shooting in low light or when using slower shutter speeds, the Canon’s stabilization system offers a clear practical advantage over the VILTROX lens.
Autofocus and Motor Technology
Both lenses use STM (stepping motor) technology, ensuring smooth and quiet autofocus performance suitable for video and stills. The Canon RF-S18-45mm F4.5-6.3 Lens delivers 100% x 100% Dual Pixel CMOS AF coverage on APS-C sensors and 80% x 80% coverage on full-frame sensors in crop mode. While the VILTROX 56mm F1.7 Fuji XF also uses an STM motor for quiet operation, it does not specify the extent of autofocus coverage. The Canon’s detailed AF coverage metrics provide measurable assurance of reliable focusing performance across a larger portion of the frame.
Build Quality and Portability
The Canon RF-S18-45mm F4.5-6.3 Lens is described as compact and lightweight, with a clever retraction mechanism that enhances portability. It fits easily into small bags or pockets, making it ideal for travel and spontaneous shooting. The VILTROX 56mm F1.7 Fuji XF weighs only 171g, emphasizing its lightweight design for travel and everyday use. Both lenses prioritize portability, but the Canon’s retractable design gives it a slight edge in space efficiency, especially when not in use.
Compatibility and Ecosystem Fit
The Canon RF-S18-45mm F4.5-6.3 Lens is designed specifically for APS-C cameras with the RF mount and automatically enables 1.6x crop mode when used on full-frame EOS R-series cameras. This makes it compatible with both APS-C and full-frame systems, though with a cropping effect on the latter. The VILTROX 56mm F1.7 Fuji XF is built for Fujifilm X-mount mirrorless cameras and supports models including the X-T5, X-T4, X-S10, and others. Its compatibility is limited to Fujifilm’s ecosystem, whereas the Canon lens serves a broader range of Canon RF-mount cameras, including both APS-C and full-frame variants.
Which should you buy?
If you're looking for a versatile, affordable, and stabilized zoom lens for everyday use with Canon RF-mount cameras—especially APS-C models—the Canon RF-S18-45mm F4.5-6.3 Lens is the better choice. At $87.00, it's nearly 50% cheaper than the VILTROX 56mm F1.7 Fuji XF and offers optical image stabilization, a wider zoom range, and dual pixel autofocus coverage. However, if your priority is achieving shallow depth of field, exceptional low-light performance, and a prime portrait focal length on Fujifilm X-mount cameras, the VILTROX 56mm F1.7 Fuji XF justifies its higher price with a bright f/1.7 aperture and lightweight build. Choose the Canon for flexibility and value; choose the VILTROX for portrait quality and bokeh on Fujifilm systems.