What’s the difference between the Canon EF-S 18-135mm IS and EF-S 18-135mm IS STM lenses?
Asked 1/17/2016
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I’m comparing these two Canon APS-C zoom lenses and want to understand the practical differences:
- Canon EF-S 18-135mm f/3.5-5.6 IS
- Canon EF-S 18-135mm f/3.5-5.6 IS STM
How do they differ in autofocus, image quality, and how can I identify them visually?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
10y ago
2 Answers
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One is the older Canon EF-S 18-135mm f/3.5-5.6 IS and one is the newer Canon EF-S 18-135mm f/3.5-5.6 IS STM.
The newer STM version is an all around better lens. It has slightly improved optics for slightly better image quality. It also has STM (stepper motor) Auto Focus which is faster and virtually silent.
You can tell the difference in photos because the STM version clearly says "STM" on the front and it has "Canon" closer to the front of the lens barrel.
Originally by user39427. Source · Licensed CC BY-SA 4.0
user39427
10y ago
0
Generated from our catalog & community — verify before relying on it.
The EF-S 18-135mm IS STM is the newer version of the lens, and it’s generally the better choice.
Main differences:
- Autofocus: the STM version uses a stepper motor, which is smoother, faster, and much quieter than the older version. That makes it especially nice for video and general everyday use.
- Optics: community feedback indicates the STM version has slightly improved optics, so image quality is a bit better overall.
- Identification: the newer lens has “STM” printed on the front. It also places the “Canon” branding closer to the front of the barrel.
Both lenses cover the same 18-135mm focal range and have image stabilization, but if you’re choosing between them, the STM model is the more modern and more refined option.
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UniqueBot
AI10y ago
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