Canon EF-S 18- vs Canon RF-S55-

Overview of the Canon EF-S 18-135mm f/3.5-5.6 is STM

The Canon EF-S 18-135mm f/3.5-5.6 is STM is priced at $329.95. This versatile lens is ideal for both video and still photography, catering to a wide range of shooting scenarios. It features a refined Image Stabilization system that provides up to four equivalent stops of shake correction throughout its zoom range. The lens incorporates one UD and one PMO aspheric lens to minimize chromatic aberration, ensuring that images are sharp and vibrant. With a maximum magnification of 0.28x at the telephoto end, this lens is a solid choice for those looking to capture high-quality images without the bulk of a full-frame lens.

Overview of the Canon RF-S55-210mm F5-7.1 is STM

The Canon RF-S55-210mm F5-7.1 is STM is priced at $409.00, making it about 17% more expensive than the EF-S 18-135mm lens. This telephoto zoom lens is designed specifically for APS-C mirrorless RF mount cameras, offering impressive telephoto coverage equivalent to approximately 88–336mm on full-frame cameras. It features optical image stabilization that provides up to 4.5 stops of shake correction, and even more when paired with EOS R series cameras. The lens includes two UD glass elements and one aspheric element, which contributes to excellent image quality by minimizing ghosting and flare.

Image Stabilization Features

The EF-S 18-135mm lens boasts an advanced Image Stabilization system that effectively compensates for camera shake, providing up to four stops of correction. This feature is particularly beneficial for handheld shooting in low-light conditions or when using longer focal lengths. In contrast, the RF-S55-210mm lens offers slightly better stabilization, with up to 4.5 stops of shake correction, and an impressive 7.0 stops when combined with the In-Body Image Stabilizer on certain EOS R series cameras. This makes the RF-S55-210mm a more suitable option for users who prioritize stabilization in dynamic shooting environments.

Focal Length and Versatility

The EF-S 18-135mm lens covers a focal length range from 18mm to 135mm, which provides a versatile zoom option for a variety of shooting conditions, from landscapes to portraits. On the other hand, the RF-S55-210mm lens has a longer reach, extending from 55mm to 210mm. This difference in focal length means that the RF-S55-210mm is particularly advantageous for capturing distant subjects, making it a favorable choice for wildlife or sports photography. However, the EF-S 18-135mm lens may be better suited for those who need a more compact option for everyday photography.

Build Quality and Design

Both lenses are designed with portability in mind, but their build quality varies slightly. The EF-S 18-135mm is compact and lightweight, weighing 16.9 oz, which makes it easy to carry for long periods. Meanwhile, the RF-S55-210mm is designed to be lightweight as well, although specific weight details aren't provided. The EF-S lens incorporates a zoom ring lock to prevent accidental extension, which is a practical feature for photographers on the go. The RF-S55-210mm lens's compact design is attributed to its mechanical six-group zoom system, which enhances its portability without compromising functionality.

Autofocus Performance

The EF-S 18-135mm lens includes Canon's STM stepping motor, which supports smooth and quiet autofocus, particularly beneficial for video shooting. This lens also features a high-speed CPU and optimized AF algorithm for quick focus adjustments. The RF-S55-210mm lens utilizes the same STM technology, promising smooth and continuous focus adjustments, making it an excellent option for videographers. Both lenses are designed to deliver efficient autofocus, but the RF-S55-210mm may have a slight edge when used with the latest EOS R series cameras, thanks to its advanced features.

Price Comparison

At $329.95, the EF-S 18-135mm is positioned as the more cost-effective choice compared to the RF-S55-210mm, which retails for $409.00. This price difference of about $79 means that the EF-S lens is more accessible for hobbyists or those just starting in photography. However, the additional features and longer focal range of the RF-S55-210mm may justify the investment for more serious photographers or videographers looking to expand their lens collection.

Which should you buy?

Choosing between the Canon EF-S 18-135mm f/3.5-5.6 is STM and the Canon RF-S55-210mm F5-7.1 is STM ultimately depends on your specific needs. If you are looking for a versatile, affordable lens that excels in both still and video photography, the EF-S 18-135mm is a great option. However, if you require a longer reach and enhanced stabilization for dynamic shooting, the RF-S55-210mm is worth the higher price tag. Both lenses offer excellent image quality and performance, catering to different styles of photography.