วันศุกร์ที่ 17 ธันวาคม พ.ศ. 2553

Canon EF 70-300mm f/4-5.6 IS USM Lens for Canon EOS SLR Cameras

Product Details
Canon EF 70-300mm f/4-5.6 IS USM Lens for Canon EOS SLR Cameras

Canon EF 70-300mm f/4-5.6 IS USM Lens for Canon EOS SLR Cameras
From Canon

List Price: $649.99
Price: $489.00 & eligible for FREE Super Saver Shipping on orders over $25. Details
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Average customer review:

Product Description

L2) CANON 70-300MM F/4-5.6 IS USM LE

Product Details

  • Brand: Canon
  • Model: 0345B002
  • Released on: 2009-11-30
  • Number of items: 1
  • Dimensions: 4.50" h x 4.70" w x 7.80" l, 1.39 pounds

Features

  • 70-300mm telephoto zoom lens with f/4-5.6 maximum aperture for Canon EOS SLR cameras
  • 3-stop Image Stabilizer for reducing camera shake; ring-type ultra-sonic monitor (USM)
  • Electro-magnetic diaphragm (EMD) helps create attractive background at large apertures
  • Super Spectra lens coating and lens element shaping suppresses flare and ghosting
  • Measures 3 inches in diameter and 5.6 inches long; weighs 22.2 ounces; 1-year warranty

Editorial Reviews

From the Manufacturer
Featuring the latest 3-stop Image Stabilizer for outstanding camera shake reduction, the EF 70-300mm f4-5.6 IS USM zoom lens also features super responsive autofocus. Replacing the popular EF 75-300mm f4-5.6 IS USM, the world's first interchangeable lens with Image Stabilizer (IS), the lens is expected to appeal to serious amateur nature and sports photographers looking to achieve outstanding results while shooting hand held.
Image Stabilizer
IS dramatically reduces image blur caused by camera shake. The EF 70-300mm f4-5.6 IS USM features Canon's latest 3-stop IS, a one-stop improvement over its predecessor. This allows shutter speeds up to three stops slower than would otherwise be possible, with no perceptible increase in image blur. Photographers normally shooting a 300mm frame handheld at 1/500 second can obtain the equivalent result with a shutter speed of just 1/60 second, vastly extending options in low-light conditions.
Gyro sensors detect unwanted vibrations, triggering the corresponding movement of a correcting lens group perpendicular to the optical axis. This alters the light path, returning the image to its correct position on the sensor or film plane.
The EF 70-300mm f4-5.6 IS USM provides 2-mode IS for shooting immobile subjects. Mode 1 stabilizes the image along both the horizontal and vertical axes. For shooting while panning to follow a moving subject, Mode 2 turns off correction in the panned direction and prevents the effect of dragging the subject back through the frame. IS switches off automatically when the camera is mounted on a tripod, thus preventing feedback loops between the IS sensor and stabilizer motor vibrations.
Superb autofocus
The micro USM motor found in the EF 70-300mm f4-5.6 IS USM employs ultra-sonic frequency vibrations to drive auto focus with unrivalled speed and near-silent operation. Good holding torque stops the lens with precision and accuracy, the instant it arrives at the correct focus point and without overshoot. A high-speed CPU and optimised AF algorithm result in a significant increase of AF speed compared to that of its predecessor.
A zoom ring locking mechanism is provided that locks the zoom at the wide-angle setting. This ensures that the lens is carried or stored in its most compact position, preventing possible damage caused by the lens extending and hitting obstacles when being carried mounted on a camera with a strap.
Pleasing defocused background
The EF 70-300mm f4-5.6 IS USM employs an electro-magnetic diaphragm (EMD) with a circular aperture. This helps create an attractive, even defocused background when isolating a subject at large apertures.
Image quality
By optimizing Super Spectra lens coatings and lens element shaping, Canon's engineers have been effective in suppressing flare and ghosting--more prone to occur with digital cameras due to reflection off the image sensor. By increasing light absorption, coatings reduce reflections off lens element surfaces to deliver crisp, undistorted images with natural color balance.
Focal length translates to 112-480mm equivalent in 35mm film format when fitted to EOS 20D and EOS 350D cameras.
The EOS system
The EF 70-300mm f4-5.6 IS USM includes distance metering information, providing compatibility with the E-TTL II flash system of late model cameras such as the EOS-1D Mark II N and EOS 5D . When used in conjunction with Canon's range of EX Speedlite flash units, the lens passes distance information to the flash algorithm for markedly improved flash exposure metering.
Accessories for the EF 70-300mm f4-5.6 IS USM include the lens hood ET-65B and the lens pouch LP1222. In keeping with Canon's Kyosei philosophy of living in harmony with the environment, the lens features only lead-free glass.

Customer Reviews

Plain review in plain terms with sample shots4
The short version:

Pros:
The optical quality is great, the speed is terrific, and it compares well to the 70-200mm lens that people like to say blows this out of the water (I believe they are wrong - but we will get into that later) and finally, the price cannot be beaten. Buy it.

Cons:
No hood, extends as it zooms, and the quality of the picture in low light situation lessens a little.

The long version:

I am writing this in simple terms. I found several, several reviews on this lens but they were all in technical terms and leaves you scratching your head a little. So, if you are like me maybe this review will help you.

I bought this lens a couple months ago from US1Photo.com (check these guys out. They regularly have significant sales and terrific customer service). I use this lens with a Canon 40D.

I take several types and styles of pictures so I needed a lens that would do the best job at several things and have a very affordable price (right at or less than $1,000). I looked through new, used, third party (Tamron, Sigma, etc) lenses, and read too many reviews and looked at too many images to count, and spent four hours in a photography store playing with lenses before I decided to spend money and take advantage of this lens. All in all I spent about a week's worth of time in research and testing before I bought this lens.

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Edit:
Okay, so amazon won't let me put a link here. This is how you find me.
~Go to Flickr
~Then type in a "/" then "photos" then "/" and last type in "gman_five0"
And that should take you there.
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Test of comment #1:
~The Canon EF 70-300mm f/4-5.6 IS USM does not track moving objects very well and the farther to the end of the zoom the slower the tracking.

(Flickr Gallery page 2)

This, I have found, to be completely wrong. I have used the lens at several sporting events and found that it tracks rather nicely. I was able to track every step of a base-runner from first base to second, slide, and recovery after the play without losing ONE shot.

To see what I am talking about check out my gallery on Flickr. The older ones are NOT done with this lens or camera and taken, actually, several years ago. I will reference the pictures in question.

Safe, Got There By a Mile, Breaking Up That Double Play (please note that as time goes on from the date that this was posted the pictures may have been re-moved). Also, "Safe" was used instead of another shot taken at the same time and angle with a 70-200mm IS lens.

To take these shots I used "AI focus" and the "H" settings on my camera for quicker tracking and the H settings for about 6 frames per second.

Test of Comment #2:
~The 200-300mm range is nice in theory, but a tack-sharp photo from the 70-200mm f/4L at 200mm is going to look better cropped than a 300mm full-frame photo from this lens.

Again, I found this to be wrong. Though I have no actual "full sized" picture for this if you comment back with an email address then we can arrange a viewing of one. Otherwise, take my word for it, I own several lenses and this one stacks up well.

(Ref Flickr Gallery)

The pictures from the Dance Theater and Tashina were all taken at the 200-300mm focus lengths. Again, they are not full sized because of photo pirates, but if you email me we can see about full sized shots.

Test of Comment #3:
~The IS motor is loud

I do not know what these people are talking about, but if you call that loud...
On the other hand, I have heard (once), the sound of the IS motor, but if you are not listening for it you will not even notice it.

Things I have found about the lens:

If you spend some time with the lens will be one of your best friends. It is a great lens especially for people on a budget (like me). To take the best pictures you cannot just twist it on and go to shooting. Take the time to LEARN about the lens (change shutter speeds, ISO settings, aperture, white balances, etc) and it will show you where it shines - just like the L series lenses and the 70-200mm IS.

This lens has a solid make and feels like it will last forever. Then again, as you zoom the lens does extend and is plastic. So, watch out if you are doing sports. You may get it knocked off. It did well for me, though. Extending while zooming makes putting a hood on the lens a bit (very little; so little that you cannot tell) awkward and it looks kinda goofy.

I like the lens because it is not as bulky as the 70-200mm lens and it is extremely mobile. It is as quick as some other lenses, not as quick as some, and quicker than others. It will give you great quality pictures. It does have its limits, however: in low light situations not being able to take it back a couple stops and get a wider aperture will not give you the same shot as a 70-200mm. Then again, like I said, it doesn't drop to that f/2.8 and does not cost all that money. This has been the single drawback for me about the lens.

I use this lens for portraits (Tashina, Samantha), for sports (see gallery), and music (Shawn Pander - See Gallery). So, it's pretty versatile. I have yet to use with it flash, but that is because I simply do not like to use flash. I have yet to use it in a studio setting, but when I do I will amend this review and add a couple of those pictures as well.

This lens comes highly recommended from me. I am not a big time, highly paid, or well known photographer. I just like to shoot and like what I shoot to be of the best quality that I can have AND afford at the time. So, if you are like me and cannot spend the needed $1,500 - $1,700 on a 70-200mm IS lens then spend your money on this lens. You will not be sorry for it.
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On another note, comments are welcome. This is my first ever review on here so let me know if there anything else that you would like to know about and I will do my best to answer the question in the most plain terms as possible.
Quite happy with the lens5
After debating between this and the 70-200 L series I decided to purchase this lens. I have been pleasantly surprised by the results. I also own the 17-85 and the 50mm 1.8 lenses and I have found that I have gotten the "most pleasing" results from this lens. The pictures have been very sharp from my 20D - even in the 200mm - 300mm range. I've also been happy with the quality of the bokeh.

The primary drawback I see is that the AF tends to hunt a fair amount when confronted with low contrast images. That being said, I used it for some flying bird shooting at the wildlife refuge and was surprised to see how many of the shots were in sharp focus. However, it was a little bit of all or nothing. Several shots were also wildly out of focus. Since the lens is fairly slow to focus, you never know what you're gonna get with such a fast moving object against the distant sky.

I had much more consistent results when shooting soccer, softball and football in the park. The AF speed did not present an issue for any of these activities and the results were excellent.

I wish the lens were a little less expensive but I the prints I have gotten from my 13 X 19 printer have been worth the extra money.
Impressive lens5
I bought this lens as a replacement for the earlier 75-300mm IS lens. I was generally happy with that lens, but it had definite limitations - I needed to shoot at f8 or f11 and bump up the ISO to get a decent shutter speed.
This new version seems sharp at full zoom even wide open, allowing me to use a lower ISO setting. Size is similar to older version, but the IS seems more effective - looking through the lens when it kicks in you can actually see the image become more stable and less shaky. I got this over the Canon 70-200 f4 L because of the extra reach, smaller size (slightly) and the images I've seen from both are very similar.
UPDATE: There have been reports of soft images when using this lens in a verticle orientation - however I have not experienced this on my copy. I'm happy to say that after months of using this lens, I still consider it great.

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