Canon EF-S 18- vs YONGNUO YN50mm F1.8C Lens, Large Aperture Auto Focus Lens,

Overview of the Canon EF-S 18-135mm and YONGNUO YN50mm F1.8C

The Canon EF-S 18-135mm f/3.5-5.6 IS STM is a versatile zoom lens that excels in a variety of shooting situations. In contrast, the YONGNUO YN50mm F1.8C is a prime lens that offers significant advantages in low-light conditions. The Canon lens is priced at $329.95, while the YONGNUO lens is more budget-friendly at $132.29, making it about 60% cheaper than the Canon option.

Design and Build Quality

When it comes to design, the Canon EF-S 18-135mm f/3.5-5.6 IS STM boasts a compact form factor with a sturdy build, weighing in at 16.9 oz. The lens features an inner focusing system, which enhances its durability and usability. On the other hand, the YONGNUO YN50mm F1.8C is lightweight at just 0.15 kilograms and measures only 2 inches in length, making it a convenient option for photographers on the go. While the Canon lens offers more versatility in focal length, the YONGNUO lens is designed specifically for optimal portability.

Optical Performance

The optical performance of both lenses is commendable but tailored to different needs. The Canon lens features one UD and one PMO aspheric lens, which significantly reduces chromatic aberration across its zoom range. It also has a maximum magnification of 0.28x, enabling users to capture more detailed images. The YONGNUO YN50mm, while a prime lens, has a fast aperture of F1.8, which enhances its ability to produce sharp images, especially in low-light scenarios. This lens offers better edge-to-edge sharpness compared to the Canon zoom lens, benefiting photographers focused on portraiture or detailed subjects.

Autofocus Capabilities

Autofocus capabilities differ significantly between the two lenses. The Canon EF-S 18-135mm features a high-speed autofocus system that utilizes a stepping motor for smooth and quiet operation, particularly useful when capturing video. This lens supports continuous autofocus during movie shooting, making it a great choice for videographers. Conversely, the YONGNUO YN50mm also supports both autofocus and manual focus functions, catering to a range of shooting styles. However, it may not match the advanced autofocus performance of the Canon lens, particularly in dynamic situations.

Image Stabilization

Image stabilization is another area where the Canon EF-S 18-135mm excels, featuring a refined system that provides up to four equivalent stops of shake correction throughout its zoom range. This feature is particularly beneficial for handheld shooting, allowing for clearer images in less-than-ideal lighting conditions. The YONGNUO YN50mm, however, does not offer any form of image stabilization, which could be a disadvantage for photographers who often shoot in low light or at slower shutter speeds.

Price and Value

In terms of price, the YONGNUO YN50mm F1.8C is significantly more affordable at $132.29, compared to the Canon EF-S 18-135mm's price of $329.95. This price difference of approximately $197.66 makes the YONGNUO about 60% less expensive than its Canon counterpart. For beginners or budget-conscious photographers, the YONGNUO lens presents excellent value, providing decent optical quality without breaking the bank. However, the Canon lens justifies its higher price with enhanced versatility and features.

Compatibility and Use Cases

The Canon EF-S 18-135mm is compatible with a wide range of Canon EOS cameras, making it a versatile choice for various photography genres, from landscapes to portraits. Its zoom capability allows users to easily adapt to different shooting scenarios. The YONGNUO YN50mm also supports a range of Canon EF mount cameras, including popular models like the 5D and 7D. While the prime lens is excellent for portrait photography, its fixed focal length may limit its usability in other genres compared to the Canon’s zoom flexibility.

Which should you buy?

Choosing between the Canon EF-S 18-135mm f/3.5-5.6 IS STM and the YONGNUO YN50mm F1.8C ultimately depends on your photography needs and budget. The Canon lens is a versatile and high-performance option that excels in both stills and video, while the YONGNUO lens is an affordable choice ideal for low-light conditions and portrait work. If budget constraints are a primary concern, the YONGNUO is a compelling option. However, for those seeking a well-rounded lens that offers advanced features, the Canon is worth the investment.