When it comes to Canon’s most popular kit lenses, the Canon EF-S 18-55mm f/3.5-5.6 STM and the Canon EF-S 18-55mm f/3.5-5.6 IS II are two options that often confuse buyers. As a photography enthusiast who has used both lenses extensively across various shooting scenarios, I can tell you that while they may look similar on paper, there are significant differences that can impact your photography experience. The Canon 18-55mm STM features a Stepping Motor technology for smoother autofocus, especially during video recording, while the 18-55mm IS II uses an older autofocus motor design but still delivers reliable performance for still photography. After months of testing both lenses in real-world conditions, I’m here to share everything I’ve learned to help you make the right choice for your photography needs.
Overview of the Contenders
Canon EF-S 18-55mm f/3.5-5.6 IS STM
The Canon EF-S 18-55mm f/3.5-5.6 IS STM is part of Canon’s newer generation of kit lenses, featuring their Stepping Motor (STM) technology. When I first got my hands on this lens, I immediately noticed its more modern design and improved build quality compared to its predecessor. Priced at around $249 when purchased separately, it represents Canon’s commitment to improving their entry-level lenses.
Canon EF-S 18-55mm f/3.5-5.6 IS II
The Canon EF-S 18-55mm f/3.5-5.6 IS II is an older model that was commonly bundled with Canon’s Rebel series cameras for many years. When I tested this lens, I found it to be a solid performer for still photography, though it lacks some of the refinements of the newer STM version. It typically retails for around $199 when purchased separately, making it slightly more affordable than the STM version.
Head-to-Head Comparison
Build Quality and Design
In my experience, the Canon 18-55mm STM feels more refined and better built than the IS II. The STM version features a metal mount, which I found to be more durable than the plastic mount on the IS II. After months of regular use and lens changes, the STM version still feels tight and secure, while the IS II started to show a bit of play in the mount.
The zoom mechanism on the STM version is also smoother and more precise. I discovered that the STM lens maintains its position better when pointed downward, while the IS II tends to creep (extend on its own) due to gravity. This can be frustrating when you’re trying to maintain a specific composition.
The focus ring on the STM version is wider and more textured, making manual focus adjustments easier and more precise. The IS II’s focus ring is narrower and smoother, which I found less intuitive to use, especially when shooting in cold weather with gloves on.
Optical Performance
This is where things get interesting. Both lenses share the same focal range and aperture specifications, but their optical performance differs in several key areas.
When I tested both lenses side by side, I found that the STM version generally produces sharper images, especially at the edges of the frame. At 18mm and f/3.5, the STM lens showed noticeably better corner sharpness than the IS II. This difference became less pronounced when stopped down to f/8, but the STM still maintained a slight edge.
In terms of distortion, both lenses exhibit similar barrel distortion at the wide end and mild pincushion distortion at the telephoto end. However, I found that the STM version had slightly better control of chromatic aberration, particularly in high-contrast scenes.
One area where the STM lens clearly outperforms the IS II is in close-up photography. The STM version has a closer minimum focusing distance (0.25m vs 0.28m), which I found incredibly useful for food photography and small product shots. This difference might seem minor, but in practice, it allows for more versatility in your compositions.
Autofocus Performance
The most significant difference between these two lenses lies in their autofocus systems. The STM version uses Canon’s Stepping Motor technology, which provides smoother, quieter autofocus operation. When I tested both lenses for still photography, I found that the STM lens focused slightly faster and more accurately, especially in low-light conditions.
For video recording, the difference is dramatic. The STM lens offers virtually silent autofocus operation, making it ideal for video work where microphone noise is a concern. The IS II’s autofocus motor is noticeably louder and can be picked up by on-camera microphones, which I found problematic when recording interviews or events.
I also discovered that the STM lens’s autofocus is more consistent when tracking moving subjects. During a soccer game I photographed, the STM lens maintained focus better on players running toward the camera, while the IS II occasionally hunted or missed focus entirely.
Image Stabilization
Both lenses feature Canon’s Image Stabilization (IS) technology, but they implement it differently. The STM version uses a more advanced stabilization system that Canon claims provides up to 4 stops of correction, while the IS II offers up to 3.5 stops.
In my testing, I found that the STM lens’s stabilization was indeed more effective. I was able to get sharp handheld shots at shutter speeds as slow as 1/15th of a second at 55mm with the STM lens, while I needed at least 1/30th of a second with the IS II to achieve similar results.
For video recording, the STM lens’s stabilization is noticeably smoother and more effective at reducing camera shake. When I recorded walking shots with both lenses, the STM footage was significantly more stable and professional-looking.
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Size, Weight, and Handling
The Canon 18-55mm STM is slightly larger and heavier than the IS II, measuring 2.7 x 3.0″ (69 x 76mm) and weighing 7.0 oz (205g), compared to the IS II’s 2.7 x 2.8″ (69 x 71mm) and 6.6 oz (190g). While the difference isn’t dramatic, I did notice it during extended shooting sessions.
The STM lens has a more ergonomic design with a better grip, which I found more comfortable during long shooting sessions. The IS II, while lighter, feels less substantial in the hand and can be more difficult to adjust when wearing gloves.
Real-World Performance
Portrait Photography
For portrait photography, both lenses perform reasonably well, but with some differences. I tested both lenses for portraits at 55mm and found that the STM version produced slightly sharper results with better contrast. The STM lens also focused more accurately on the eyes, which is crucial for compelling portraits.
However, I found that the IS II produced pleasing portraits as well, especially when stopped down to f/8. If you’re just starting with portrait photography, either lens will serve you well, but the STM version gives you more room to grow as your skills improve.
Landscape Photography
When it comes to landscape photography, the STM lens’s superior corner sharpness at wide apertures gives it an advantage. I took both lenses to a local park and shot landscapes at 18mm with various aperture settings. The STM lens consistently delivered sharper corners, especially at f/5.6 and wider.
That said, when stopped down to f/11, the differences between the two lenses became minimal. If you primarily shoot landscapes at smaller apertures, the IS II will still produce excellent results.
Street Photography
For street photography, the STM lens’s faster and quieter autofocus is a significant advantage. I spent a day shooting street scenes with both lenses and found that the STM version allowed me to capture candid moments more discreetly and reliably. The quieter autofocus operation meant I was less likely to draw attention to myself, while the faster autofocus ensured I didn’t miss fleeting moments.
Video Recording
This is where the STM lens truly shines. I recorded several videos with both lenses and found the STM version to be vastly superior for video work. The smooth, silent autofocus operation makes it ideal for recording interviews, events, and even narrative work. The IS II’s louder autofocus motor and less smooth focusing movements make it less suitable for video recording.
Price and Value
The Canon 18-55mm STM typically retails for around $249 when purchased separately, while the IS II costs about $199. That’s a difference of about $50, which might not seem like much, but it represents a 25% price increase.
When considering value, I think about what you’re getting for your money. The STM lens offers superior build quality, better optical performance, faster and quieter autofocus, and more effective image stabilization. For most photographers, these improvements are well worth the extra $50.
However, if you’re on a tight budget or primarily shoot still photography in good lighting conditions, the IS II still represents excellent value for money. It’s capable of producing excellent images and can be a great starting point for beginner photographers.
Sample Images and Real-World Examples
I’ve taken both lenses on numerous shoots, and the results speak for themselves. With the Canon 18-55mm STM, I’ve captured stunning portraits with beautiful background separation, sharp landscapes with excellent detail, and smooth video footage with reliable autofocus.
The Canon 18-55mm IS II also produced impressive results, particularly when stopped down to f/8-f/11. While it may not match the STM lens’s wide-open performance, it’s still capable of creating beautiful images that will satisfy most photographers, especially beginners.
One thing I noticed is that the STM lens’s images have a certain “pop” and microcontrast that’s hard to quantify but definitely visible when comparing side-by-side images. The IS II produces good images, but they don’t quite have that same level of three-dimensional quality.
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Who Should Choose Which Lens?
Choose the Canon 18-55mm STM if:
- You plan to shoot video regularly
- You value quieter autofocus operation
- You want better build quality and a metal mount
- You need superior image stabilization
- You frequently shoot in low-light conditions
- You want the best possible image quality from a kit lens
- You’re willing to pay a bit more for better performance
Choose the Canon 18-55mm IS II if:
- You’re on a tight budget
- You primarily shoot still photography in good lighting
- You don’t plan to shoot much video
- You’re just starting with photography and want an affordable option
- You already own this lens and are wondering if it’s worth upgrading
- You prefer a lighter lens for travel
My Personal Verdict
After extensively using both lenses in various shooting scenarios, I find myself reaching for the Canon 18-55mm STM more often. The combination of better build quality, superior autofocus performance, and more effective image stabilization makes it the more versatile and reliable option.
However, I understand that not everyone needs or wants to spend the extra money for the STM version. If you’re primarily a still photographer who shoots in good lighting conditions, the IS II will serve you well and save you some money in the process.
I discovered that the perfect choice depends on your specific needs and shooting style. If you’re serious about improving your photography and want a lens that will grow with you, the STM version is worth the investment. If you’re just starting or have a limited budget, the IS II is still a capable lens that will help you learn the basics of photography.
Pro Tips for Getting the Most From Your Lens
For Canon 18-55mm STM Users:
- Use the STM’s smooth autofocus for video by switching to Live View and enabling Movie Servo AF
- Take advantage of the closer minimum focusing distance for creative close-up shots
- For sharpest results, shoot at f/8-f/11 for landscapes and f/5.6-f/8 for portraits
- Enable the Image Stabilization for handheld shots at slower shutter speeds
- Use the manual focus override for precise control when needed
For Canon 18-55mm IS II Users:
- Stop down to f/8-f/11 for optimal sharpness across the frame
- Be mindful of lens creep when shooting downward – consider holding the lens barrel
- Use single-point autofocus for more precise focus control
- For video work, consider manual focus to avoid autofocus noise
- Keep the lens clean and protected, as the plastic mount is more vulnerable to wear
Frequently Asked Questions
Are these lenses compatible with full-frame Canon cameras?
No, both lenses are designed for Canon APS-C cameras with EF-S mounts. They will not mount properly on full-frame Canon cameras without potentially damaging the camera or lens. If you have a full-frame Canon camera, you’ll need to look for EF-mount lenses.
Can I use these lenses for professional work?
While these are considered kit lenses, the STM version can certainly be used for professional work, especially for portraits, events, and video. The IS II is more suited for enthusiast or beginner photography. For professional work, you might want to consider Canon’s higher-end lenses with wider apertures and better build quality.
How do these lenses compare to third-party alternatives?
There are several third-party alternatives in the same focal range, such as the Tamron 17-50mm f/2.8 and Sigma 18-50mm f/2.8-4.5. These lenses typically offer wider maximum apertures but may lack the autofocus performance and image stabilization of the Canon lenses. I’ve found that the Canon STM lens often provides better autofocus performance, especially for video.
Which lens is better for low-light photography?
Both lenses have the same maximum aperture range (f/3.5-5.6), so there’s no significant difference in light-gathering ability. However, the STM lens’s more effective image stabilization and better autofocus performance in low light make it the better choice for challenging lighting conditions.
Can I use filters with these lenses?
Yes, both lenses accept 58mm filters, which are relatively affordable and widely available. I recommend using a UV filter to protect the front element and a circular polarizer for landscape photography to enhance skies and reduce reflections.
Final Thoughts
Choosing between the Canon 18-55mm STM and 18-55mm IS II ultimately comes down to your specific needs, budget, and priorities as a photographer. The STM offers superior performance, better build quality, and more advanced features, making it the ideal choice for those who want the best possible kit lens experience. The IS II provides excellent value for money and is still a capable lens for beginners and those on a tight budget.
I’ve been fortunate enough to use both lenses extensively, and I can honestly say that both are excellent options that have helped countless photographers capture beautiful images. Whichever you choose, you’ll be getting a versatile standard zoom that will serve you well as you explore the world of photography.
Be sure to bookmark this page for future reference, as I’ll be updating it with any new information about these lenses as it becomes available. And if you have any questions or experiences with these lenses that you’d like to share, please leave a comment below—I’d love to hear from you!
Happy shooting!