What Is 10-18mm Lens Used For

By | 12/10/2022

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Catechism 10-18mm IS STM
APS-C EF-S (2014-)


Specs   Performance   Compared   Usage   Recommendations

More than

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Canon 10-18mm IS

Canon EF-S 10-18mm f/4.5-five.vi IS STM
(APS-C coverage only, 67mm filters, 8.2 oz./233g, 7″/20cm close focus, about $279). enlarge. I bought mine at Adorama. I’d also go it at Amazon, at B&H or at Crutchfield.

This ad-free website’s biggest source of support is when yous utilize those or any of these links to approved sources when you become
anything, regardless of the country in which you alive. Catechism does not seal its boxes, so
purchase at retail or any other source non on my personally approved listing since you’ll take no mode of knowing if you’re missing accessories, getting a defective, dropped, damaged, returned, store demo or used lens. My approved sources ship from remote automated warehouses where no salespeople or lookie-loos can ever become their greasy fingers on your new lens or driblet it before yous do. Buy but from the canonical sources I use myself for the best prices, service, render policies and option. Cheers for helping me help you lot! Ken.

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NEW: Catechism 10-18mm IS vs. 16-35mm f/2.8 L Ii
12 June 2014

Sample Paradigm Files

More samples at Canon 10-18mm IS vs. xvi-35mm f/2.8 50 II,

Canary Palm 11 June 2014

Canary Palm, 11 June 2014.
Canon 10-18mm at 10mm at f/x at one/100 at ISO 100. Camera-original file.

Canary Palm 11 June 2014

Physical Wall at 2 Feet (0.6 meters), 11 June 2014.
Canon 10-18mm at 18mm at f/x at 1/100 at ISO 100. Photographic camera-original file.

Canary Palm 11 June 2014

Physical Wall at ii Feet (0.6 meters), 11 June 2014.
Canon 10-18mm at 10mm at f/10 at 1/100 at ISO 100. Camera-original file.




Specs   Performance   Compared   Usage   Recommendations


The Canon 10-18mm IS STM is the world’southward starting time reasonably-priced ultrawide lens. It works merely on Catechism’s APS-C digital cameras.

Not merely is it the world’s least expensive, information technology’s super light weight, and is likewise optically superb. There is no sharper ultrawide lens for APS-C cameras, and information technology’s much better than Canon’s ten-year-old EF-South x-22mm that costs over twice as much!

This new ten-18mm lens as well adds Image Stabilization (IS), a starting time from Canon in whatever ultrawide.

This 10-18mm also adds Canon’s Stepper Autofocus Motor (STM) for faster AF with video.

Information technology’s got a plastic mount, which is why it only costs $300 and weighs next to nothing. The 10-22mm is also all plastic except for the mount, so I’grand not worrying about it. I’ve never broken any of my plastic-mount lenses in the ten years I’ve been shooting them, and I just sold an image I made with a plastic xviii-55mm lens to one of the world’south largest pharmaceutical companies for $4,000, so they can’t be all that bad.

Feel complimentary to grab the manual focus ring at whatever time for manual focus override. Transmission focus is electronic, not mechanical, so it doesn’t feel as good every bit it does on the one-time 10-22mm, but who cares; we rarely use manual focus with ultrawide lenses anyway.

The 10-18mm is the best Canon ultrawide I’ve used. It’s the sharpest, smallest, lightest and least expensive. Likewise bad it won’t work on full frame, simply the newer full frame 16-35mm f/4 L IS (non nonetheless tested) should be every bit good. Canon’s full-frame ultrawides (like my favorite xvi-35mm f/2.8 50 II) have never been very sharp.

Yep, this $300 lens is sharper than the $1,700 Canon 16-35 Fifty Two. Not bad for $300!

Canon EF-S 10-18mm STM

Canon EF-S 10-18mm IS STM.




Specs   Functioning   Compared   Usage   Recommendations


Proper noun

Canon calls this the Catechism Lens EF-due south x-18mm IS STM.

Electronic Focus. All modernistic Catechism lenses focus with a motor in the lens.

For small-format APS-C cameras only.


Stepper autofocus Motor.


14 elements in xi groups.

One aspheric and and one UD drinking glass element.

Four-group zoom system.

Rear focus.


Canon 10-18mm STM

Front, Canon ten-18 STM (EF diaphragm non visible).

7 curved blades.

Stops down to f/22-29.

Shut Focus

0.72 feet (0.22m) rated.

7.5″ (19cm) measured, from the paradigm plane. That’due south 3″ (75mm) from the front of the lens.

Maximum Reproduction Ratio

i:6.7 (0.15x).

Focal Length


On APS-C cameras, it gives angles of view similar to what a 16-28mm lens would requite on a 35mm or full-frame photographic camera. Run across also Ingather Gene.

Bending of View

74.3º – 107.5º  diagonal on APS-C DSLRs.

Maximum Aperture


Prototype Stabilization

Rated four stops improvement.


2.ix” (74.6mm) diameter x two.8″ (72.0mm).


8.215 oz. (232.9 g), actual measured.

Rated eight.5 oz. (240g).


xiii May 2014.

Promised for

June 2014.


I got the commencement i on 10 June 2014.

Detail Number



Lens and caps fabricated in Taiwan.




Price, United states of america

$279, Christmas 2015.

$249, June 2015.

$300, May 2014.

Canon case

Box, Catechism 10-18mm.




Specs   Performance   Compared   Usage   Recommendations


Overall    Autofocus    Bokeh   Breathing   Color

Distortion   Ergonomics   Falloff    Filters    Ghosts

Image Stabilization   Lateral Color Fringes   Macro

Max & Min Apertures   Mechanics   Sharpness   Sunstars


performance      pinnacle

The Catechism x-18mm STM is optically superb. Add together that to its ultra calorie-free weight and small size and the everyman cost on the market, and there is no other ultrawide yous’d desire for your small-sensor Canon camera.

It’s the best lens in that location is for these cameras, and the least expensive.


performance      acme

AF is virtually instantaneous, silent and accurate.

AF Speed

Autofocus is essentially instantaneous.

Auto/Manual Switching

But grab the focus ring anytime for instant manual-focus override.

To lock it into transmission mode, movement the switch on the lens.


performance      top

Bokeh, the quality of out-of-focus areas as opposed to the degree of defocus, isn’t visible. At that place is rarely anything out of focus except at macro ranges, at which point bokeh is neutral.

Color Rendition

operation      top

The color balance of this x-18 seems the same as my other Canon EF and EF-S lenses.


performance      top

The Canon ten-eighteen STM has no visible distortion throughout most of its range, except for moderately strong barrel distortion at 10mm and a bit of pincushion distortion at 16mm.

For critical employ, utilize these values in Photoshop’south Lens Baloney tool to remove the distortion. These aren’t facts or specifications, they are the results of my research that requires hours of photography and calculations on the resulting information.

at ten’ (3m)











© 2014 KenRockwell.com. All rights reserved.

* some waviness is visible later on correction.


performance      pinnacle

Canon EF-S 10-18 STM

Catechism EF-Southward 10-18mm IS STM.

Ergonomics are perfect. Most of the lens is the zoom ring, and the focus and IS controls are right under your thumb.

The thinner black ribbed ring at the front is the manual focus ring. Movement it any time with a fingertip for instant manual focus override. Information technology’due south just an encoder to tell the computer to focus your lens, so information technology feels completely disconnected from the focus system because it is.

Non visible is how minor and light is this lens. Information technology’s a joy to pop it in a purse or pocket instead of having to lug something bigger.


(darkened corners)

performance      top

Falloff is negligible, even without a contour. Information technology’due south barely visible wide open up, and goes away a stop downwards.

In the newer DSLRs with automatic correction, exist certain y’all accept a contour loaded for this lens and the falloff becomes completely invisible (not shown here).

I’ve greatly exaggerated the falloff by shooting a flat gray target and presenting it against a gray background:

Canon 10-18mm STM falloff, uncorrected

Maximum Aperture




Canon 35mm f/2 IS falloff

Canon 35mm f/2 IS falloff

Canon 35mm f/2 IS falloff


Canon 35mm f/2 IS falloff

Canon 35mm f/2 IS falloff

Canon 35mm f/2 IS falloff


max. is f/5.half dozen ->

Canon 35mm f/2 IS falloff

Canon 35mm f/2 IS falloff

© 2014 KenRockwell.com. All rights reserved.

Filters, Use with

performance      top

There’s no problem with vignetting, even with thick rotating filters.

There’southward no need for thin filters; regular thick and rotating filters piece of work great.

In fact, I can stack a thick Tiffen rotating ND grad filter over another regular filter, and I get no vignetting then long as I don’t zoom wider than 11mm!

While they fit, don’t use polarizers at the 10mm finish considering they make skies await funny.

Focus Breathing

performance      top

Focus animate (the epitome irresolute size as focused) is mostly of interest to cinematographers who don’t desire the prototype irresolute size (“breathing”) every bit the lens is focused among different subjects.

There is but the slightest scrap of breathing at the 18mm end, at which the image gets very slightly smaller equally focussed more than closely. I tin’t see any at the 10mm finish.

       performance     tiptop

Canon 10-18mm ghosts

Shot directly into the sun at 18mm at f/16.

There’s no problem with flare or ghosts.

Fifty-fifty shot straight into the sun and putting a tree in the the shot to highlight whatsoever ghosts that might materialize, there’s nothing pregnant when you realize that the direct unshielded disc of the sunday is in the left of the image, and I couldn’t look through their finder considering information technology was so literally blinding.

In bodily use, there volition be none.

This is first-class performance.

Image Stabilization

performance      meridian

Image Stabilization works great. Presuming you know how to shoot a rifle and thus shoot a camera properly at slow speeds, I get perfectly sharp shots most of the fourth dimension at 1/iv 2d, commonly get pretty sharp shots at i/2, and fifty-fifty at 1 second go a precipitous shot every few frames.

I apply a unproblematic technique when I’k on the edge: simply shoot several frames, and one is ordinarily much sharper than the others. Use that, and delete the rest.

Lateral Color Fringes

performance      peak

Fifty-fifty without an in-camera contour, at that place are very few color fringes. Newer cameras with a lens contour loaded volition clear those up.

Without a profile, there is just a tiny bit of red/green fringing at all zoom settings. Even without a profile, they are almost invisible.


performance      top

Macro gets very close.

It’s rated every bit eight” or 22cm, but that’s from the epitome plane at the back of the photographic camera.

I measure its shut-focus distance as vii.5″ (19 cm) from the image airplane, which is 3″ (75mm) from the forepart of the lens!

Here’s what yous become zoomed to 18mm:

Canon 10-18mm macro performance

Omega Constellation at close-focus distance at 18mm at f/13.

Canon 10-18mm macro performance

Crop from above 10MP image at 100%.
If this is 6″ (15cm) on your monitor, the complete image printed at this aforementioned high magnification would be 40 ten 26″ (one x 0.vii meters) at this very same sharpness.

Maximum and Minimum Apertures

Maximum Aperture

Minimum Aperture

















performance      tiptop

Canon 10-18 STM

Rear, Canon ten-18 STM.


The Canon 10-18 STM is all plastic, but good plastic. It’s small enough that I don’t worry about hitting it by blow and breaking information technology off a photographic camera; there isn’t enough leverage, and Canon’s APS-C cameras aren’t heavy plenty.

Filter Threads


Hood Mountain


Identity Ring

Painted on front end plastic ring inside the filter threads.

Forepart Butt

(extends while zooming)


Focus Ring

Rubbery plastic.

Zoom Ring

Rubber-covered plastic.

Rear Barrel




Moisture seal at mountain






Serial Number

Light amplification by stimulated emission of radiation-engraved into plastic lens barrel near mountain.

Date Code

None seen.

See Canon Date Codes.

Noises When Shaken

Mild clunking.

Made in

Made in Taiwan.


operation      top

Image sharpness depends more on you than your lens, and lens sharpness doesn’t mean much to adept photographers. It’s the to the lowest degree skilled hobbyists who waste the most time blaming fuzzy pictures on their lenses, while real shooters know that few photos ever use all the sharpness of which their lenses are capable due to subject motion and the fact that real subjects are rarely perfectly flat.

This Canon 10-18 is extremely precipitous throughout all of the image at every setting.

It’s super-precipitous wide open, while diffraction will dull the image at the smallest apertures.

Information technology’s much better than any of the samples of 10-22mm I’ve tested over the years, both in 2006 and again in 2014.

Catechism’s specified MTF curves:

Canon 10-18mm MTF

Canon 10-18mm MTF

MTF at 10mm.

MTF at 18mm.


performance      acme

Canon 10-18 mm sunstar

Canon ten-18mm sunstars at 10mm at f/ten.

With its rounded 7-blade diaphragm, this Canon 10-18mm IS makes simply muted sunstars at best.

It’s still better and then the silly and weak half-dozen-pointed stars of the 10-22mm.




Specs   Functioning   Compared   Usage   Recommendations


Catechism 10-18mm IS vs. 16-35mm f/2.8 50 II12 June 2014

This lens has no competition. Every other ultrawide lens for Canon’s APS-C cameras is optically inferior, tin’t focus every bit shut, has no IS, and costs at least twice as much.

The only advantages to the bigger and optically junior x-22mm are that it has a direct mechanical transmission focus override (the 10-18mm has instant manual override, merely it’s focus-by-wire), the 10-22mm has slightly less baloney, the 10-22mm has a metallic lens mount and is ii/3 of a terminate faster.

Let’s be honest: 4 stops of Prototype Stabilzation beats two/3 of a finish of optical speed (2/3 of a stop won’t save you even if yous’re shooting activity where IS can’t help), and even if I broke one of these 10-18mm lenses and had to buy a second, I’ve withal spent less than I would have on only one ten-22mm. There is no significant advantage to 22mm versus 18mm on the long stop, and the 10-18mm is sharper and so I suspect you could crop-in from the 18mm terminate of the 10-18mm and get results at least every bit skillful equally from the old x-22mm at 22mm.

Tokina’south ultrawide lenses are OK and bigger, heavier and tougher, but they have poorer ergonomics, won’t exist sharper, and cost much more. Forget them, too.




Specs   Operation   Compared   Usage   Recommendations

More than

Image Stabilization

I’d leave it on all the time, except for time exposures on a tripod.


I’d leave either a 67mm Canon UV filter or a 67mm Hoya Blastoff MC UV on the lens at all times.

If you desire the best possible protective filter, the 67mm Hoya HD2 Protector is ultra multicoated, repels dirt and fingerprints and made of shatter resistant glass.

If I was working in nasty, dingy areas and don’t want to spring for the HD2 filter, I’d apply an uncoated 67mm Tiffen UV filter instead. Uncoated filters are much easier to clean, simply more prone to ghosting.

Honestly, for a $300 lens, personally I’d use the super-high quality and inexpensive 67mm Hoya Alpha MC UV. The Tiffen isn’t as nice, and the Canon and HD2 filters first costing most as much as the lens.

I wouldn’t bother with a hood.




Specs   Functioning   Compared   Usage   Recommendations


For Catechism’s APS-C DSLRs this x-18mm lens is the just 1 to get. It has superior performance and the lowest price.

If yous detect my work here helpful, my biggest source of support for this costless website is when you use this link to get yours at Adorama or at Amazon. When y’all utilise those or any of these links to approved sources when you become
anything, regardless of the country in which you live, it helps me go on adding to this gratuitous website — but I receive
for these efforts if you lot take the chance of buying elsewhere. Unlike a bottle of milk or a CD, DVD or Blu-Ray disc, Canon doesn’t seal its boxes so you have no idea if you’re actually getting a used production if you take chances buying at retail.
buy at retail.

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Specs   Performance   Recommendations


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