Canon EF-S 18- vs Tamron 18-
Updated July 2026 — Canon EF-S 18- wins on diameter, Tamron 18- wins on zoom ratio and weight.
The Canon EF-S 18-135mm is a reliable all-rounder at a lower price, while the Tamron 18-300mm offers extensive zoom capabilities for more advanced needs.
Why Canon EF-S 18- is better
Price
Canon is significantly cheaper at $329.95.
Weight
Canon is lighter at 16.9 ounces.
Compactness
Canon has a more compact design.
Why Tamron 18- is better
Zoom Range
Tamron offers a 16.6x zoom compared to Canon's 7.5x.
Autofocus Speed
Tamron has a faster VXD autofocus mechanism.
Versatility
Tamron covers a wider focal range for diverse shooting.
Overall score
Specifications
| Spec | Canon EF-S 18- | Tamron 18- |
|---|---|---|
| Focal Length | 18-135mm | 18-300mm |
| Aperture | f/3.5-5.6 | f/3.5-6.3 |
| Stabilization | Yes | Yes |
| Moisture Resistant | Yes | Yes |
| Autofocus Type | Stepping Motor | VXD Linear Motor |
Dimension comparison
Design and Build Quality
When it comes to design and build quality, the Canon EF-S 18-135mm f/3.5-5.6 is STM is a compact and lightweight option, weighing in at 16.9 ounces. In contrast, the Tamron 18-300mm F/3.5-6.3 Di III-A VC VXD is slightly heavier at 21.9 ounces but packs a remarkable zoom capability. The Tamron lens is the world’s first 16.6x all-in-one zoom lens for APS-C mirrorless cameras, allowing for an extensive focal range from wide-angle to ultra-telephoto. While both lenses feature a moisture-resistant construction, the Tamron’s fluorine coating offers added protection against elements, making it a robust choice for those who frequently shoot outdoors.
Focal Length and Versatility
The Canon EF-S 18-135mm offers a versatile focal length that is ideal for a range of photography styles, from landscapes to portraits. With a focal length of 18-135mm, it provides a maximum magnification of 0.28x, making it suitable for everyday use. On the other hand, the Tamron 18-300mm boasts a much broader focal range of 18-300mm, translating to a full-frame equivalent of 27mm to 450mm. This versatility is perfect for photographers who wish to capture everything from wide-angle shots to close-up details without changing lenses. The Tamron lens excels in situations that require significant zoom, making it an all-in-one solution for travel and dynamic shooting environments.
Autofocus Performance
In terms of autofocus performance, the Canon lens employs an inner focusing system along with a stepping motor that provides smooth and quiet focus during video shooting. This setup enhances the lens's capability for both stills and video, especially with its support for the Movie Servo AF feature. Conversely, the Tamron lens utilizes a VXD linear motor focus mechanism, which is designed for extremely fast and precise autofocus. This means that while both lenses offer reliable autofocus, the Tamron may have the edge in speed and accuracy, particularly in challenging shooting conditions.
Image Stabilization
Image stabilization plays a crucial role in capturing sharp, clear images, especially in low-light situations or at longer focal lengths. The Canon EF-S 18-135mm features a refined Image Stabilization system that provides up to four equivalent stops of shake correction throughout its zoom range. This is particularly useful for handheld shooting. The Tamron 18-300mm also includes a VC (Vibration Compensation) mechanism, which is designed to minimize image blur caused by camera shake, especially in the ultra-telephoto range. Both lenses excel in this department, but the Canon lens is specifically noted for its effectiveness in video shooting scenarios.
Price Comparison
When comparing prices, the Canon EF-S 18-135mm is currently priced at $329.95, while the Tamron 18-300mm comes in at $599.00. This makes the Canon lens about 45% cheaper than the Tamron, which may be a significant factor for budget-conscious photographers. However, the Tamron’s extensive zoom range and advanced features justify its higher price for those who require a more versatile lens. It ultimately comes down to whether the additional capabilities of the Tamron are worth the price difference for the user’s specific needs.
Target Audience
The target audiences for these two lenses differ markedly. The Canon EF-S 18-135mm is ideal for amateur photographers and videographers seeking a reliable, all-purpose lens that performs well in various scenarios. Its compact design and lower price point make it accessible for everyday use. On the other hand, the Tamron 18-300mm is geared towards enthusiasts and professionals who demand versatility and the ability to shoot in a variety of conditions. Its extensive focal range makes it suitable for travel and wildlife photography, where changing lenses frequently may not be feasible.
Image Quality
Both lenses are designed to deliver high image quality, but they achieve this in different ways. The Canon EF-S 18-135mm incorporates one UD and one PMO aspheric lens to reduce chromatic aberration and improve contrast, resulting in sharp images with beautiful bokeh thanks to its 7-blade circular aperture. The Tamron 18-300mm, however, is noted for maintaining high resolving power from the center to the corners of the frame, thanks to its special optical elements. This makes the Tamron a strong contender for those who prioritize edge-to-edge sharpness and clarity in their images.
Which should you buy?
Choosing between the Canon EF-S 18-135mm and the Tamron 18-300mm ultimately depends on your photography needs and budget. The Canon lens is a great all-rounder, offering excellent image stabilization and a compact design at a more affordable price point. It's ideal for casual photographers and videographers. Conversely, the Tamron lens stands out for its expansive zoom range and advanced autofocus features, making it a preferred choice for enthusiasts and professionals who require versatility and high image quality across a broader spectrum of photography styles. If you need an all-in-one solution and can justify the price, the Tamron is the way to go; for those on a budget or who need a reliable everyday lens, the Canon is a strong contender.

