Canon ef

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The Canon EF-S 18-55milimet f/3.5-5.6 IS II Lens is the review-time-current version of Canon"s least expensive sầu APS-C DSLR kit lens (replacing the EF-S 18-55mm IS Lens).While it is designed as a starter lens và leaves a lot to be desired, it is a good value when purchased in a kit.It is cheap, small & extremely light, has image stabilization và has a nice general purpose focal length range.

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I always look for the right focal length range first when selecting a lens khổng lồ use.The 18-55 IS II will only mount on APS-C (1.6x FOVCF)Canon EOS DSLR Cameras.On these cameras, the 18-55mm focal length range provides the equivalent of a 28.8-88milimet lens on a full frame DSLR.This range falls squarely into the range I recommover for general purpose use.

To explore the focal length range offered by the Canon EF-S 18-55mm f/3.5-5.6 IS II Lens, I visited the local pallet house girl.Looks like house cleaning was the task of the day:

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18milimet | 18mm | 24mm | 24mm | 28mm | 28milimet | 35mm | 35milimet | 55mm

Though not exceptionally wide, 18mm will work fine in modest-sized rooms và 55mm will produce reasonable head & shoulder portraits.Tightly cropped head shots will start showing perspective distortion - including big noses - & are are best avoided.Landscapes & other general purpose photography work well in this range.

The Canon EF-S 18-55milimet f/3.5-5.6 IS II Lens is a relatively "slow" lens - meaning that it has a relatively narrow aperture.Letting in only a relatively small amount of light means that that the 18-55 IS II will not be a great lens choice for stopping action in low light.A relatively wide angle focal length range và relatively narrow aperture, along with the coinciding relatively deep DOF (Depth of Field),means that creating a svào background blur is not a strength of this lens.

Being a variable aperture lens means that wide open exposure settings are going to change as the lens is zoomed lớn the longer focal lengths.Here is a table comparing the aperture step down focal lengths with some other Canon lenses.

Modelf/2.8f/3.2f/3.5f/4.0f/4.5f/5.0f/5.6
Canon EF-S 15-85milimet f/3.5-5.6 IS Lens15mm18mm27mm38mm61mm
Canon EF-S 17-55milimet f/2.8 IS Lens17mm
Canon EF-S 17-85mm f/4-5.6 IS Lens17mm26mm38mm47mm
Canon EF-S 18-55mm f/3.5-5.6 IS II Lens18mm24mm29mm39mm47mm
Canon EF-S 18-55milimet f/3.5-5.6 IS Lens18mm24mm28mm39mm47mm
Canon EF-S 18-135mm f/3.5-5.6 IS Lens18mm22mm31mm41mm64mm
Canon EF-S 18-200mm f/3.5-5.6 IS Lens18mm24mm40mm50mm90mm
Canon EF 28-135mm f/3.5-5.6 IS USM Lens28mm37mm50mm67mm85mm
Canon EF-S 55-250milimet f/4-5.6 IS Lens55mm74mm96mm154mm

While it is not a good choice for low light action, the 18-55 IS II will work well in low light when the subjects are not moving.Image stabilization has practically become a standard zoom lens feature these days & it is extremely valuable lớn me.In-lens IS will allow a camera to be handheld at very long exposure settings and provides a stabilized viewfinder image that sida in subject framing.Here is an example of the difference that IS can make in your images:

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The images in this example were the best of the groups I shot at 55milimet with a .4 second exposure duration with & without IS engaged.The (very rough) rule for handholding a camera is that you need a shutter speed of 1/(focal length x FOVCF) or faster khổng lồ avoid camera shake-caused blur.So, without image stabilization, a 55mm focal length would require a 1/(55 * 1.6) = 1/88 or faster shutter tốc độ which rounds to lớn 1/100.

The Canon EF-S 18-55milimet f/3.5-5.6 IS II Lens is rated for 4 stops of assistance with each "stop" meaning twice or half as much light.At 55milimet, nearly 100% of my 18-55mm IS II handheld images are without camera motion blur at up khổng lồ 1/13 second exposures.This is an easy 3 stops of assistance.Thus, this lens can be easily handheld in an environment having 1/8 as much light as a non-stabilized lens using 3 stops (50% x 50% x 1/2) as a guideline.At 1/10 sec, about 1/2 of my images are sharp at 55milimet.The keeper rate gradually decreases as longer exposures are used with a very low percent of images being worth keeping at .4 second exposures (tripod when I am able to lớn.

The 18-55 IS II" image stabilization is very quiet.If you put your ear against the lens in a quiet room, you can hear very quiet clicks.You will not hear these clicks in normal use & no one else will hear the clicks.

As I said in the beginning of the 18-55 IS II Đánh Giá, the "II" replaces the "I"."The version II of this lens includes new IS algorithms to distinguish between normal photographing andwhen the camera is panning lớn automatically provide the optimal cấp độ of image-shake correction."

From what I can tell, the only other "I" to lớn "II" changes are cosmetic (version "I" is on the left):

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For the price of this lens, it has rather impressive image quality.I"ve sầu been struggling lớn bring you an accurate description of this lens" sharpness.It performs very well on the resolution chart, with reasonable sharpness inkhổng lồ the corners.Stopping down (narrower aperture, higher aperture value) the lens to lớn f/8 results in a slight improvement in sharpness.

By comparing the 18-55 IS II to lớn an expensive sầu, high grade prime lens(the Canon EF 200mm f/2L IS USM Lens), we can see its obvious shortcomings in contrast.Outdoor testing also makes 18-55mm IS II image unique weakness apparent in some locations within the frame.Some areas within the frame compete with the better lenses, but here are two examples where the 18-55mm IS II falls short throughout the focal length range.

Clichồng on the image below to lớn see an image unique comparison between this lens and some other similar focal length range lenses.You will see what the additional investment buys you.

Make no mistake - the 17-55 is a significantly more expensive lens.But, it is important for you to know the image chất lượng you get with the 18-55 và the image chất lượng you could have sầu.

Overall, the 18-55 IS II shows a relatively small amount of peripheral shading/vignetting.One stop of shading means 50% as much light reaches the sensor corners.With a wide open aperture (f/3.5), expect just over two stops of vignetting at 18milimet.By 24mm (f/4), a still-slightly-noticeable 1.2 stops of shading remains.Vignetting decreases through 55milimet (f/5.6) where about .8 stop remains.As usual, stopping down the lens reduces vignetting, though just over a stop of shading remains at 18milimet f/8.

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While I don"t recommover putting a UV or clear protective filter on this lens(a good filter will cost too high of a percentage of the value of this lens), a standard thickness filter will add a very slight amount of peripheral shading.I love circular polarizer filters, but a standard thickness filter will add nearly .5 stops of physical vignetting khổng lồ the image corners.A slim CPhường filter will avoid most of this shading.But a slyên CPhường filter does not give us clear sailing - the filter rings on this lens rotate when focusing.Since CPhường filters are orientation-specific for their effect, keeping the filter properly rotated requires plenty of patience.

Usually, lateral CA (Chromatic Aberration) is not a significant defect with this lens.Some CA is visible in the corners in the mid-range focal lengths - you can see this most easily in the ISO 12233 Chart results for this lens.The chart is only blachồng and Trắng, so the colors visible in the lower crop detail indicate CA.But sometimes CA shows up more strongly, such as in this 18milimet bottom-center of the frame crop:

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The 18-55 IS II does not show a significant amount of flare, but it is visible - especially at 55mm.A noticeable amount of barrel distortion is present at 18milimet.Distortion transition lớn slight pincushion at 35milimet & continues through 55mm.

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Ideally, OOF (Out of Focus) points of light remain circles even with a stopped down aperture (where the number of blades & blade shape affect the results the most).The 18-55milimet IS II has curved aperture blades, but it has only 6 of them.I can clearly see 6 sides in OOF highlights in some stopped-down-aperture images as shown in the bokeh (quality of the background blur) example above sầu.Because this lens does not create a strongly blurred background unless shooting at minimum focus distance at 55mm,I didn"t find the 18-55 IS II"s bokeh to lớn be much of an issue.

As I mentioned a couple of times in this nhận xét, the "II" replaces the "I".Optically, I"m not seeing many differences between the two lenses - my "I" is my very slight preference to lớn my "II" optically.And Canon does not indicate that any optical design changes have been made.

The Canon EF-S 18-55milimet f/3.5-5.6 IS II Lens" micro motor-driven AF focuses at a moderate tốc độ.Focusing is audible - a modest buzzy sound is heard as the lens adjusts khổng lồ locked focus.I have sầu found focus accuracy khổng lồ be very consistently accurate.Of course, generally deep DOF makes AF precision less critical/noticeable.

Like its predecessors, the 18-55 IS II extends when focusing and,like I said earlier in the Đánh Giá, the front of the lens rotates when focus is adjusted - You should avoid liên hệ with it during autofocus.FTM (Full Time Manual) focusing is not available - manual focusing should only be done with the AF/MF switch in the MF position.

Precisely manually focusing this lens is a significant challenge.The focus ring is the extending portion of the lens including the Canon EW-60C lens hood if you buy this optional accessory.There is a small raised area near the end of the lens extension that I would Call the "focus ring", but I"m being generous with this definition.

The manual focus ring is not very smooth, but the much bigger problem is that there is a lot of play in the extending portion of the lens.Not only does rotating the focus ring change focus, but even slight side-to-side pressure changes both the focus và the subject framing.I reserve manual focusing this lens for emergency/mandatory use only.

Those of you bold enough khổng lồ vày serious đoạn Clip work with this lens will have sầu a small amount of focus breathing to lớn work with.Don"t bother trying lớn pull Clip focus with this lens - your viewers are sure to lớn become motion sichồng.

There are no focus distance markings on this lens.

Of all the focusing-related attributes, this lens" strength is in its cchiến bại minimum focus distance (MFD):

ModelMFDMM
Canon EF-S 10-22mm f/3.5-4.5 USM Lens9.4"(240mm)0.17x
Canon EF-S 15-85milimet f/3.5-5.6 IS USM Lens13.8"(350mm)0.21x
Canon EF-S 17-55milimet f/2.8 IS USM Lens13.8"(350mm)0.16x
Canon EF-S 17-85milimet f/4-5.6 IS USM Lens11.8"(300mm)0.20x
Canon EF-S 18-55milimet f/3.5-5.6 IS II Lens9.8"(250mm)0.34x
Canon EF-S 18-55mm f/3.5-5.6 IS Lens9.8"(250mm)0.34x
Canon EF-S 18-135mm f/3.5-5.6 IS Lens19.3"(490mm)0.21x
Canon EF-S 18-200milimet f/3.5-5.6 IS Lens17.7"(450mm)0.24x
Canon EF 28-135mm f/3.5-5.6 IS USM Lens19.7"(500mm)0.19x

The 18-55 IS II" maximum magnification value is a very healthy .34x.This means that a subject can be rendered at .34x life-form size onlớn a sensor.While not a macro lens figure, .34x is very useful for flowers and other moderately small subjects.

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Above sầu is an MFD example taken at 18mm, f/5.6.

Extension tubes will allow significantly greater MM when used behind this lens.No current-at-review-time Canon EF-S Lenses are compatible with Canon extenders.