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The EF-S 10-18mm f/4.5-5.6 IS STM lens combines optical excellence with cutting-edge performance, providing an ultra-wide angle of view in a compact, portable package, perfect for EOS cameras with an APS-C sensor. It has a 4 group optical zoom system and includes a large-diameter element, an aspherical lens element, a UD lens element and enhanced lens coatings for high-contrast, high-resolution images with minimal glare and aberration. A circular, 7-blade aperture helps ensure fine background blur and the Canon Optical Image Stabilizer system provides up to four equivalent stops of shake correction. The lens has a stepping motor (STM) and a refined focus mechanism for smooth and continuous AF during video recording. It also has a rear focusing system, plus a high speed CPU and improved AF algorithm for high-speed AF; and offers full-time manual focus for quick adjustments. The EF-S 10-18mm f/4.5-5.6 IS STM delivers reliable, speedy and quiet wide-angle performance, making it an ideal lens for everyday photography, travel, stills and video recording.
From the Manufacturer
The EF-S 10–18mm f/4.5–5.6 IS STM lens combines optical excellence with cutting-edge performance, providing an ultra-wide angle of view in a compact, portable package, perfect for EOS cameras with an APS-C sensor. It has a 4 group optical zoom system and includes a large-diameter element, an aspherical lens element, a UD lens element and enhanced lens coatings for high-contrast, high-resolution images with minimal glare and aberration. A circular, 7-blade aperture helps ensure fine background blur and the Canon Optical Image Stabilizer system provides up to four equivalent stops of shake correction. The lens has a stepping motor (STM) and a refined focus mechanism for smooth and continuous AF during video recording. It also has a rear focusing system, plus a high speed CPU and improved AF algorithm for high-speed AF; and offers full-time manual focus for quick adjustments. The EF-S 10–18mm f/4.5–5.6 IS STM delivers reliable, speedy and quiet wide-angle performance, making it an ideal lens for everyday photography, travel, stills and video recording.
Most helpful customer reviews
528 of 556 people found the following review helpful.
For real estate/architecture - Major pro: Excellent edge-to-edge sharpness. Minor cons: flares/ghosts easily, barrel distortion
By David Sparks
I shoot a lot of real estate, and had been using the Canon 10-22mm as my main lens. After reading Ken Rockwell's glowing review on the 10-18mm, I thought I'd try it out. My first day with the new lens, I noticed a major drawback, which is that it flares very easily when photographing light sources. "Ghosting" may be the more appropriate term - you'll see green blobs show up underneath direct light sources, especially chandeliers or any kind of bare light source. (See attached bedroom picture.)
It took me a little longer to notice the next drawback, but reviewing my photos after shoots, I was seeing that the lens has considerable barrel distortion in certain shots, probably mostly at the wider focal lengths. Some photos have a slight fisheye bulge to them where straight lines appear to curve. The attached picture of the bedroom was taken at 11mm - you can see the distortion on the door on the right edge.
The one very nice advantage it has over the 10-22mm is that is more consistently sharp from edge to edge across all focal lengths. I'd always get a few shots with my 10-22 that really faded away into dullness on one side, but this never happens with the 10-18mm.
550 of 580 people found the following review helpful.
Ultra wide zoom with top image quality
By P.K. Frary
The EF-S 10-18 4.5-5.6 IS STM is the least expensive and smallest ultra wide zoom among a small field of contenders. The EF-S mount fits APS-C (1.6X crop) cameras only, e.g., Rebel series or 70D. It does not fit full-frame models like the 5D or 6D. Here's my take on this able little lens after a couple months of shooting on a SL1.
BUILD: Like the 18-55 STM, it's made of plastic, save for optics and electronics. However, it feels solid in hand: plastics are good quality, no play in the mount or barrel and it’s nicely finished in semi-matte black. It’s a featherlight 240g and easy to slip in a coat pocket or purse.
FOCUS is internal--no front element extension or turning—and peppy enough, but slower than the EF-s 10-22 3.5-4.5 USM. However, focus is silent to onboard mics. The STM drive rendered pulls and Movie Servo silky smooth on my SL1.
The "by wire," i.e., powered manual focus is smooth but lacks the control of a mechanical ring. FTM (full time manual) allows manual focus without flipping a switch. FTM only works when the camera is switched on with the shutter button half-pressed.
ZOOM: The ribbed zoom ring turns silky smooth. A nested barrel extends from the main barrel slightly at 10mm and 18mm, but is fully retracted at 14mm. The zoom range is only 1.8X, but short ratios are the norm for wide zooms.
IMAGE STABILIZER (IS) yields two additional stops of hand holdable range at 10mm and three-stops at 18mm, but not the four-stops claimed by Canon. A more steady hand might squeeze out four-stops. IS is quiet and isn't audible on video when using built-in mics.
OPTICAL PERFORMANCE wide open is sharp center frame with slight softness in corners. Stop down to F8 and corners sharpen up. Sharpness is consistent across most of the zoom range, with minor degradation towards the long end. There's barrel distortion at the wide end but fades towards 18mm. Chromatic aberration (CA) is well controlled with only slight magenta fringing along high contrast edges. e.g., tree branches against a bright sky. CA is nominal at 10mm but more pronounced at 22mm.
Light falloff (corner darkening) is pronounced: heavy vignetting at 10mm from F4.5 until F11. It lessens as you zoom toward 18mm and/or stop down, but is always there. If you shoot JPEGs, Peripheral Illumination Correction can automatically reduce light falloff. RAW shooters may correct with a few clicks in Lightroom or DPP.
Photos of sunsets, spotlights and other bright light sources exhibit little flare wide open. Oddly, flare appears with bright light sources when stopped down to F11 or 16. Use a hood to help protect from stray light, doggie noses and raindrops. The Canon Lens Hood EW-73C is an accessory and costs a cringe worthy $28. A knockoff hood, the JJC LH-73C Lens Hood Shade For Canon EF-S 10-18mm f/4.5-5.6 IS STM Lens Replaces EW-73C is available for 1/3 the cost of OEM.
The dilemma is choosing between this lens and the EF-S 10-22mm f/3.5-4.5 USM. Image quality is a tossup so other features will be the deciding factor. The USM lens has 4mm of reach, 1-stop faster aperture at 10mm, better build, distance scale, sturdy metal mount and faster AF. On the other hand, the STM lens is $300 less, smaller and lighter, includes IS and the STM drive is silent and smooth when using Movie Servo on a 70D, 7D MKII, SL1, T5i or T6i.
LAST BLURB: Canon cut a few corners to swing this price but did so with few compromises in optical quality or function. The result is a marvelous lightweight zoom for landscapes, tight quarters or any situation a sweeping view is desired. The EF-S 10-18mm f/4.5-5.6 IS STM is a wonderful performer and value.
38 of 41 people found the following review helpful.
My go to Real Estate Photography lens
By Mp Vision
[[VIDEOID:134ac5aaf6eb84a1070ab0a73ebacaa5]] I am a real estate photographer, I've had this lens for 2 years and its paid for itself over and over again. I use it on My Canon 70D. I am very happy with it. This is the lens I was recommended when I started in Real Estate and I am paying it forward. Its great for the money. The least expensive ultra wide for your crop sensor. Its lightweight, got quiet auto focus and image stabilization. Its not great for low light and there is some lens distortion, complete plastic construction, and you may get flares off lights, but with experience you will get around that. For the price its a 5 star lens. I will continue to use it and have no intentions in stopping. Its My go to lens.