Canon 18
HomeDonateNewSearchGalleryReviewsHow-ToBooksLinksWorkshops AboutContact Canon 18-135mm STM EF-S IS (2012-today) © 2012 xeotocaocap.com. All rights reserved. Bạn đang xem: Canon 18   Canon EF-S 18-135mm f/3.5-5.6 (works only on Canon"s small-format (1.6x) cameras, 67mm filters, 16.4 oz./464g, 1.3"/0.39m close focus, about $550 new, or about $400 used). Enlarge. This không tính phí website"s biggest source of support is when you use these links, especially these link directly to lớn it at Adorama or at Amazon, or used at eBay, when you get anything, regardless of the country in which you live. Thank you! Ken. October 2012 Canon reviews Canon Lenses All Reviews Video Sample Files Introductiontop Intro Specs PerformanceRecommendations Adorama pays vị trí cao nhất dollar for your used gear. B&H Photo - đoạn phim - Pro Audio |
The Canon 18-135mm STM is a great do-everything lens with effortlessly silent & extremely fast autofocusing
The older 18-135mm EF-S IS lens was the only lens I needed to shoot everything for two weeks in Maui in 2010. With this one lens on a Canon 1.6x camera, you"re done.
I never needed any other lens for anything, & this 18-135mm is easy to lớn pack, handle và shoot. You never need to take it off your camera. As experienced photographers know, if you can"t catch it with 135mm on small format (equivalent khổng lồ just over 200mm on full-frame), a longer lens won"t save you: you need khổng lồ get closer! In other words, don"t worry about this lens "only" going khổng lồ 135mm instead of 200mm. If 135mm isn"t long enough, nothing will be.
This new STM lens is an inch shorter và adds a zoom lock và instant manual-focus override lớn the older 18-135mm EF-S IS lens, however manual focus is electronic. The focus ring isn"t connected to lớn anything, and there is a tiny time delay between when you move the ring and the lens moving. The tốc độ at which the lens moves isn"t directly related lớn how far or how fast you turn the ring, so it"s weird. It"s not as good as having a real manual focus ring lượt thích the 15-85mm, 17-55mm or 17-85mm.
Another huge improvement from the older 18-135mm EF-S IS is that the zoom range from 24mm to lớn 18mm has been spread-out on the zoom ring, so it"s much easier khổng lồ set precise wide-angle framing. On the old lens, it was very cramped at the wide end.
Compatibility
As a Canon EF-S lens, this 18-135mm f/3.5-5.6 STM works only with Canon"s mini-format (1.6x) digital SLRs.
It is useless for 35mm, full-frame and 1.3x cameras; it won"t even mount on them.
Specifications top
Intro Specs PerformanceRecommendations
Name
Canon calls this the CANON ZOOM LENS EF-S 18-135mm f/3.5-5.6 IS STM.
EF means "electronic focus," meaning that there is an autofocus motor in the lens itself. All Canon lenses since 1987 have been EF.
-S means "small-format only," meaning that this lens only works on, & only attaches to, Canon"s small-format (1.6x) digital cameras. It does not work with, and will not attach to, any other Canon camera.
IS is Image Stabilization, meaning you can leave the tripod at home.
STM means Stepper (AF) Motor.
Opticstop
16 elements in 12 groups.
5 zoom groups.
Multicoated.
Internal focus.
Front group moves during zoom.
Diaphragmtop
Canon 18-135mm STM at 18mm and f/3.5. (EF diaphragm not visible).
7 rounded blades.
Round for the first couple of stops, heptagonal from there on.
Stops down khổng lồ f/22-36.
Close Focustop
1.3 feet (0.39 m) from the image plane.
Hard Infinity Focus Stop? top
No.
You have to let the AF system dial you in.
Focus Scaletop
No.
The manual focus ring turns continuously without mechanical stops.
Depth-of-Field Scaletop
No.
Infra-Red Focus Indextop
No.
Filter Threadtop
67mm.
Plastic.
Xem thêm: Hoa Hậu Phương Nga Được Tại Ngoại, Điều Tra Bổ Sung Vụ Án, Hoa Hậu Phương Nga
Moves in và out with zoom, but never rotates.
Sizetop
Canon specifies 3.1" (76.6 mm) diameter by 3.8 " (96.0 mm) long.
The older 18-135mm was longer at 3.1" (77.7mm) diameter by 4.8 " (123.0mm) long.
Weighttop
16.380 oz. (464.35g), measured.
Canon specifies 16.9 oz. (480g).
The older 18-135 IS measures 15.940 oz. (451.9g).
Hoodtop
Plastic bayonet EW-73B ($26), not included.
I wouldn"t bother getting one, they don"t do much but vì chưng get in your way.
Casetop
$25 LP1116, not included.
Capstop
Standard (not "ULTRASONIC") Canon 67mm ET-67 front cap.
Standard EOS cap rear.
Introducedtop
07 June 2012, 12:09 AM, new york City time.
Pricetop
October 2012: $550 new, or about $400 used over eBay.
June 2012: Sold only as a kit with the Canon T4i, or about $400 used over eBay.
Canon 18-135 STM EF-S. enlarge.
Performancetop
Intro Specs PerformanceRecommendations
OverallAutofocus color Distortion Ergonomics
Eyeblow Falloff Filters Lateral màu sắc Fringes
Maximum Aperture Mechanics
Sharpness Sunstars đoạn phim Sample Files
Overall performance top
The Canon 18-135mm f/3.5-5.6 STM is a handy lens for everything.
Its zoom range covers everything I might need.
Autofocus performance top
Autofocus is silent and super-fast. The lens" motor is completely silent, much quieter than the 40mm f/2.8 STM.
Auto/Manual Switching
Just grab the ring at any time in ONE SHOT for instant manual-focus override.
Only move the AF-MF switch khổng lồ MF to lớn lock it into manual focus.
AF Speed
AF is pretty much instantaneous at every focal length.
AF Accuracy và Consistency
I always got perfect autofocus on a Canon T4i.
Does focus hold while zoomed?
No; focus drifts as zoomed, so focus after zooming.
Manual Focus
Manual focus is electronic.
It only works if the camera is on and awake.
The focus ring is merely an input đầu vào to a computer, which then moves the lens as it sees fit. Therefore, sadly there is a slight delay in response, và the actual tốc độ of the focus never quite matches what you"re trying to do.
Video autofocus on the T4i
This lens on the T4i offers the best DSLR video autofocus I"ve yet experienced, but it"s still not as good as a camcorder.
Video Sample Files performance top
Here"s a sample 25MB video clip clip, made with the T4i at
Here"s another 19MB tệp tin of Ryan defying death with the same settings, và at these speeds, it still tracks just fine. It took a while for Ryan khổng lồ wait for me to lớn get focus reasonably locked before I started lớn roll, but once locked & rolling, it worked fine.
In all fairness, while other DSLRs are nearly useless for making đoạn clip with autofocus of things that move (the whole point of video), the video and autofocus of the T4i with this lens is pretty useful. It will catch my kids doing most things other than running around in circles.
There is no sound from the lens while it focuses, whoo hoo!
Color Balance performance top
I see no difference in màu sắc balance between this EF-S 18-135mm f/3.5-5.6 STM and my other EF lenses.
Distortion performance top
The Canon 18-135mm f/3.5-5.6 STM has the usual distortion for this kind of lens: horrendous barrel distortion at 18mm, và strong pincushion distortion at most other focal lengths. It only goes away around 24mm.
