In your research about autofocus lenses, you will come across two types – USM and STM. They are both excellent lenses but have their differences as well. If you are caught between a Canon 18-135mm USM and STM and do not know which way to go, you have come to the right place. In this article, we will talk in depth about USM and STM and compare the aforesaid lenses for you.
Canon 18-135mm USM vs STM
Difference Between STM and USM
USM
USM stands for Ultrasonic Motor. It was introduced back in the 90s for Canon AF lenses. This technology is widely used in all EF lenses by Canon. It works on vibrations that are applied to rings. These vibration frequencies cause the rings to rotate and drive the autofocus. At the moment, USM is the fastest technology in Canon. There are 3 main types of USM motors:
- Ring-type
- Micro USM
- Nano USM
STM
STM means Stepping Motor and the lenses are named as such due to the stepping motor technology that they work on. STM lenses provide smooth focus and work quietly, enabling you to shoot amazing videos. You can make precise movements while shooting videos and capturing photos with this tech. The different types of STM lenses are:
- Lead-screw
- Gear-type
Canon 18-135mm USM vs STM – The Features
Now, let’s compare these lenses with regards to Canon 18-135mm to find out which one takes the cake.
Canon 18-135mm STM | Canon 18-135mm USM | |
|---|---|---|
Affordable | ||
Besides the aforementioned differences, the two lenses have more or less the same features. So, the only choice you have to make is whether you need a professional-grade lens or a beginner’s lens. USM is ideal for professionals while STM is a good choice for amateurs. You can also decide based on the type of shots you’d like to take because STM is much more suitable for videos while USM provides excellent still shots.
Canon 18-135mm STM vs USM – the Verdict
The truth is simple – there’s no clear winner here because both the lenses serve different purposes. It is up to you to decide based on your preferences. All you have to do is to compare them keeping your requirements in mind. All the best!
People also ask:
Before we conclude, let’s take a look at a few FAQs on this topic.
1. What is Better – STM or USM?
USM is better for professional-grade still photos while STM is ideal for videos.
2. What is the Canon 18-135mm Lens Good For?
It is a good choice for portraits, sports photography, and wildlife photography.
3. Why are USM Lenses More Expensive?
USM lenses are faster and quieter than STM lenses. They use an ultrasonic motor, which is why they are more expensive.
4. Which Canon Lens Do Professional Photographers Use?
Most professional photographers prefer the EF 85mm f/1.8 USM lens.
Conclusion
The right lens for you totally depends on your photography requirements. Both USM and STM lenses are excellent but only you can tell us who the winner is in the Canon 18-135mm STM vs USM battle. There’s no template answer here! If you have any questions, please reach out.