Canon RF100- vs PANASONIC LUMIX S Series Camera Lens,
Updated July 2026 — Canon RF100- wins on zoom and stabilization, PANASONIC LUMIX S Series Camera Lens, wins on price and weight.
The Canon RF100-400mm excels in versatility and zoom range, while the Panasonic LUMIX S85 offers excellent portrait capabilities at a lower price.
Why Canon RF100- is better
Zoom Range
Canon offers a significant zoom range of 100-400mm.
Image Stabilization
Canon features up to 6 stops of shake correction.
Autofocus Speed
Canon's Nano USM provides faster autofocus.
Why PANASONIC LUMIX S Series Camera Lens, is better
Price
Panasonic is more budget-friendly at $597.99.
Portrait Features
Panasonic excels in portrait photography with beautiful bokeh.
Compatibility
Panasonic is compatible with all L-mount full-frame cameras.
Overall score
Specifications
| Spec | Canon RF100- | PANASONIC LUMIX S Series Camera Lens, |
|---|---|---|
| Focal Length | 100-400mm | 85mm |
| Aperture | F5.6-8 | F1.8 |
| Image Stabilization | Yes | No |
| Weight | 1.5 lbs | 1.1 lbs |
| Compatibility | EOS R | L-Mount |
Dimension comparison
Overview of the Canon RF100-400mm F5.6-8 IS USM
The Canon RF100-400mm F5.6-8 IS USM is a versatile telephoto lens designed for EOS R series cameras. Priced at $699.00, it offers a significant zoom range, making it ideal for wildlife, sports, and travel photography. This lens is compact and lightweight, measuring similarly to the EF 70-300mm F4.5-5.6 IS II USM, while providing an extended reach to 400mm. The RF100-400mm features a robust Optical Image Stabilizer, which provides up to 5.5 stops of shake correction, enhancing image quality in various shooting conditions.
Overview of the Panasonic LUMIX S Series Camera Lens
The Panasonic LUMIX S Series Camera Lens, with an 85mm focal length and a large aperture of F1.8, is priced at $597.99. It is designed for portrait photography, providing excellent bokeh and smooth defocus gradation, making it a great choice for capturing stunning images with artistic flair. This lens is compatible with all L-mount full-frame digital cameras, enhancing its versatility across the LUMIX S series and beyond. The LUMIX S85 is also compact and lightweight, allowing photographers to carry it comfortably throughout the day.
Image Quality Comparison
The Canon RF100-400mm excels in delivering high-image quality across its zoom range, making it an excellent option for capturing distant subjects with clarity. It incorporates a single Ultra Low Dispersion lens element to correct chromatic aberration, ensuring crisp and colorful images. In contrast, the Panasonic LUMIX S85 utilizes 9 elements in 8 groups, including 2 Extra-low Dispersion lenses, to effectively suppress various forms of chromatic aberration. Both lenses provide impressive image quality, but the Canon lens offers a broader focal range, which may appeal to those looking for versatility in telephoto photography.
Autofocus Performance
When it comes to autofocus, the Canon RF100-400mm features Canon's Nano USM technology, which provides fast, smooth, and quiet focusing. This is particularly advantageous for capturing fast-moving subjects in wildlife or sports photography. The Panasonic LUMIX S85 also offers reliable autofocus performance and is designed to excel in video recording by suppressing focus breathing, making it a strong contender for videographers. While both lenses provide solid autofocus capabilities, the Canon lens may have the edge in speed and precision for action shots.
Portability and Design
The Canon RF100-400mm is lauded for its compact and lightweight design, making it easy to transport for long shooting sessions. Similarly, the Panasonic LUMIX S85 is noted for its portability, allowing photographers to remain mobile without sacrificing performance. Both lenses are built with rugged designs, but the Panasonic lens claims a dust/splash-resistant feature, which may appeal to outdoor photographers facing challenging weather conditions. In terms of mobility, both lenses are designed to be carried easily throughout the day, making them suitable for various shooting scenarios.
Compatibility and Versatility
The Canon RF100-400mm is specifically designed for EOS R series cameras, offering features like Coordinated IS when paired with compatible bodies. This lens can also accept RF1.4x and RF2x tele extenders, effectively increasing its maximum focal length to 560mm and 800mm, respectively. On the other hand, the Panasonic LUMIX S85 boasts L-Mount compatibility, meaning it works across a broader range of cameras, enhancing its versatility for photographers who use multiple bodies. This compatibility may make the Panasonic lens a better option for those with an existing L-Mount camera system.
Price Comparison
With a current price of $699.00, the Canon RF100-400mm is about 17% more expensive than the Panasonic LUMIX S85, which retails for $597.99. While both lenses offer unique features and capabilities, the price difference may influence purchasing decisions, especially for budget-conscious photographers. The Panasonic lens provides excellent value for those focused on portrait photography, while the Canon lens may appeal more to those needing a longer focal length for wildlife or sports photography.
Which should you buy?
Choosing between the Canon RF100-400mm F5.6-8 IS USM and the Panasonic LUMIX S Series Camera Lens ultimately depends on your specific photography needs. If you require a versatile telephoto lens for wildlife or sports, the Canon lens offers a significant zoom range and superior stabilization features. However, if portrait photography is your primary focus, the Panasonic lens provides beautiful bokeh and is more budget-friendly. Consider your shooting style and camera system compatibility to make the best decision for your photography pursuits.

