What To Know
- Both the USM and STM versions of the Canon EF-S 18-135mm lens offer the same focal length range of 18-135mm and a maximum aperture of f/3.
- The price difference can vary depending on the retailer and the time of year, but you can expect to pay around $100-$200 more for the USM version.
- In addition to the autofocus system, there are a few other factors to consider when choosing between the USM and STM versions of the Canon EF-S 18-135mm lens.
The Canon EF-S 18-135mm lens is a versatile and popular choice for photographers of all levels. It offers a wide range of focal lengths, making it suitable for a variety of shooting situations. However, there are two different versions of this lens: the USM and the STM. In this blog post, we will compare and contrast the two lenses to help you decide which one is right for you.
Understanding the Differences: USM vs STM
The main difference between the USM and STM versions of the Canon EF-S 18-135mm lens is the autofocus system. USM (Ultrasonic Motor) lenses use ultrasonic vibrations to move the focusing elements, resulting in fast and silent autofocus. STM (Stepping Motor) lenses, on the other hand, use a stepper motor to move the focusing elements, which is quieter than USM lenses but may be slightly slower.
Key Features and Specifications
Focal Length and Aperture
Both the USM and STM versions of the Canon EF-S 18-135mm lens offer the same focal length range of 18-135mm and a maximum aperture of f/3.5-5.6. This makes them suitable for a wide range of shooting situations, from landscapes to portraits to wildlife.
Image Quality
In terms of image quality, both the USM and STM versions of the Canon EF-S 18-135mm lens produce sharp and detailed images. However, the USM version may have a slight edge in terms of sharpness, especially at the longer focal lengths.
Autofocus Performance
As mentioned earlier, the main difference between the USM and STM versions of the Canon EF-S 18-135mm lens is the autofocus system. The USM version offers faster and more precise autofocus, making it a better choice for shooting fast-moving subjects or in low-light conditions. The STM version, on the other hand, is quieter and smoother, making it a better choice for shooting videos or in situations where silence is important.
Size and Weight
The USM version of the Canon EF-S 18-135mm lens is slightly larger and heavier than the STM version. The USM version weighs 480 grams, while the STM version weighs 420 grams. This difference in size and weight may not be significant for most users, but it is worth considering if you are planning on carrying the lens around for long periods of time.
Price
The USM version of the Canon EF-S 18-135mm lens is typically more expensive than the STM version. The price difference can vary depending on the retailer and the time of year, but you can expect to pay around $100-$200 more for the USM version.
Which Lens is Right for You?
The best way to decide which version of the Canon EF-S 18-135mm lens is right for you is to consider your specific needs and budget. If you need fast and precise autofocus, then the USM version is a good choice. If you are looking for a quieter and smoother lens, then the STM version is a better option.
USM Version: Pros and Cons
Pros:
- Fast and precise autofocus
- Good image quality
Cons:
- Noisier than STM version
- More expensive
STM Version: Pros and Cons
Pros:
- Quiet and smooth autofocus
- Less expensive
Cons:
- Slower autofocus than USM version
- May not be as sharp at longer focal lengths
Additional Considerations
In addition to the autofocus system, there are a few other factors to consider when choosing between the USM and STM versions of the Canon EF-S 18-135mm lens.
Image Stabilization
Neither the USM nor the STM version of the Canon EF-S 18-135mm lens has built-in image stabilization. This means that you will need to use a tripod or other stabilization method when shooting in low-light conditions or at slow shutter speeds.
Weather Resistance
Neither the USM nor the STM version of the Canon EF-S 18-135mm lens is weather-resistant. This means that you should avoid using them in wet or dusty conditions.
Lens Hood
Both the USM and STM versions of the Canon EF-S 18-135mm lens come with a lens hood. The lens hood helps to protect the lens from scratches and damage, and it also reduces flare and ghosting.
The Bottom Line: Making the Right Choice
The Canon EF-S 18-135mm lens is a versatile and affordable option for photographers of all levels. Whether you choose the USM or STM version depends on your specific needs and budget. If you need fast and precise autofocus, then the USM version is a good choice. If you are looking for a quieter and smoother lens, then the STM version is a better option.
Frequently Asked Questions
Q: What is the difference between the USM and STM versions of the Canon EF-S 18-135mm lens?
A: The main difference between the USM and STM versions of the Canon EF-S 18-135mm lens is the autofocus system. USM lenses use ultrasonic vibrations to move the focusing elements, resulting in fast and silent autofocus. STM lenses, on the other hand, use a stepper motor to move the focusing elements, which is quieter than USM lenses but may be slightly slower.
Q: Which version of the Canon EF-S 18-135mm lens is better for shooting videos?
A: The STM version of the Canon EF-S 18-135mm lens is better for shooting videos because it is quieter and smoother. The STM motor provides smooth and silent autofocus, which is essential for capturing high-quality videos.
Q: Does the Canon EF-S 18-135mm lens have image stabilization?
A: No, neither the USM nor the STM version of the Canon EF-S 18-135mm lens has built-in image stabilization. This means that you will need to use a tripod or other stabilization method when shooting in low-light conditions or at slow shutter speeds.
