Canon EF 70-300mm f4-5.6 IS USM Lens for Canon EOS SLR Cameras

Saturday, May 29th, 2010 at 1:33 am

Canon EF 70-300mm f4-5.6 IS USM Lens for Canon EOS SLR CamerasN

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.

The EF 70-300mm f/4-5.6 IS USM telephoto zoom lens has been developed to meet the high-performance standards that today’s photographers demand. Improved Image Stabilizer Technology provides up to three stops of “shake” correction, and the “Mode 2″ option stabilizes images while panning with a moving subject. Compared to the original Canon EF 75-300mm IS zoom lens, this telephoto lens has faster autofocus, and overall the lens is lighter and has a smaller diameter than the original. The zoom ring can be locked at the 70mm position, making this powerful lens easy to transport, too.

Canon EF 70-300mm f4-5.6 IS USM Lens for Canon EOS SLR Cameras Reviews

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 NOW !.

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.

—
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.
—

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.
—

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.

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.

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.

Just arrived and wasted no time in testing it on my T1i. No doubt that this is easily a fantastic lens. Loved the pictures taken with this lens. Though not as sharp as F4 70-200 L series lens at around 100-200 range.. but definitely sharp enough and worth the money. Strongly built body and a nice optics. The best part is the IS. Two way IS for vertical and horizontal stabilization. It really works. I tried both ways and it works like gem. I tried shooting the moon at night and result was fantastic. Another great plus is Bokeh is lovely. Spending almost 2 times more for L-series lens needs to be given a deep thought. This little monster is definitely worth the bucks. Solid investment.

I believe these are the best zoom lenses you can buy to your SLR camera.

The images are clear and it is very easy to use.

Perfect to go out and get wonderfull photos!!!

This lens was purchased to get closer views at sporting events. It does everything I hoped it would do. At near maximum zoom it filled the frame with the action. I recently attended an Indy car race. I could shoot the cars right across from me very well and get decent shots of the cars across the track. The image stabilization gave excellent clarity even at maximum zoom. The AF focus point on your Canon SLR may need to be narrowed. Occasionally the camera autofocus would lock onto the guard rail or fence post rather than the car. A little experimentation with the camera adjustment will allow you to use this lens in a predictable manner. The weight and balance is good. I had no hand fatigue from using it all day.

I own a Canon T1i camera. In looking for a long range lens above 200mm, I read reviews on both Amazon and other commercial sites. I was looking for a lens with image quality above 200mm but did not want to incur the cost of purchasing one of the excellent Canon “L” lenses. Further, I wanted Image Stabilization and USM if possible. During reviews, I found that this zoom lens came as close to a full 5-star rating as any on the market in the non-L category. Since obtaining the lens, it has complimented my two other lenses quite nicely, one being the Canon 18-135mm “walk-around” lens and the super-fine Canon 17-55mm 2.8 IS USM non-L lens. The Bokeh is unbelievable; the sharpness of detail is as good as I could have desired. During a recent trip to the Canaveral National Seashore, I was able to get distant photos of Alligators and Roseate Spoonbill birds that were exceedingly sharp. And I was able to use the Canon IS feature to take shots at 250-300mm without a tripod.

I now find that I am spoiled. While I went into this purchase with my eyes wide open, this lens starts at 70mm; my great 17-55mm lens ends at 55mm. While my 18-135mm is a very good walk-around lens, I find myself missing the image quality that I have with my 17-55mm and the 70-300mm lenses. This causes me, so far, to do most of my shooting with the 17-55mm and the 70-300mm creating the need to change lenses too frequently between the 17-55mm and the 70-300mm. I give up the walk-around feature that I enjoyed with the 18-135mm. Perhaps this will change in time and I will again start using my older 18-135mm for the purpose intended – a walk-around lens that I keep on my camera most of the time. But as I said, I have really been spoiled with this new 70-300mm lens.

This lens works very nicely as advertised. Do not expect the quality to be that of an “L” lens but, when needing a good telephoto lens, this lens will get the job done with tack-sharp results.

I debated for a long time between purchasing this lens versus the more expensive L-series. I know that I made the right choice after using this lens for about 2 months. It has given me tack sharp images up to approx. the 275mm focal length but softens slightly at full length. It is easy to mount, moderate weight and has excellent 2 mode IS capability. Sample shots are posted.

I read nearly every review and discussion about the Canon 70-300mm f/4-5.6 IS USM lens, especially as compared with the Canon 70-200mm f/4L IS USM, and finally bought the 70-300 yesterday for my new Rebel T2i (550D). Particular concerns others have had were sharpness vs. the L, non-ring USM, and the extending, rotating lens barrel.

So far I’m quite satisfied. Shooting at f/8 I’ve gotten some very nice test shots, including fast AF lock and good sharpness at 300mm on a flying seagull (which fills my computer monitor width at 100%).

Sharpness at 200mm and 300mm seem about the same, but I like the extra reach of 300mm, either to fill the frame or to downsample for more sharpness. I think the biggest variable in the sharpness of my test photos is what part of the scene I lock focus on (as in a landscape with a lot of depth); I’d conclude from my best shots that the lens itself is quite sharp. I’m still learning the camera and lens.

The extending, rotating lens barrel seems minor vs. the much greater cost, less reach, and greater size of the L lens. While shooting seagulls the AF didn’t lock on plain blue sky and went blurry, so I quickly refocused on a building before looking for the next bird.

I found sample images most useful to me, so I posted some of mine so far at [...] (Google my name with Canon 70-300).

I really do enjoy this lens! It takes honestly sharp pictures , even at night in the parking lot from a building far away it! Only gripe I have is wow this lens is very long, and I might return it only because of that only that. Other than if that doesn’t concern you (if your considering purchasing this look at the specs with a measuring tape, then do it again with it zoomed out and see if your comfortable with that) I just can’t

I bought Canon EF 70-300mm f/4-5.6 IS USM Lens before went to Winter Olympics in Vancouver, I am so glad I did, the quality of the lens is very good for the price, got some great photos from short track speed skating including Apolo’s close up shots.

This lens is very useful for different purposes. Not only as a zoom-in lens that allows you to approach distant subjects but also I find it suitable for portrait photography. In fact, you can say this is a non-intrusive lens -so to speak, when it comes to taking face close-ups. With other lower focal distance lenses I have noticed that people, and especially children, get bored or uncomfortable. Besides, it’s extremely easy to achieve a significant “bokeh” (diffused background) given the amplification factor that a large focal distance produces. Taking portrait pictures at 300mm the background starts to get out of focus just a few feet behind your subject. The role of aperture is not key anymore because depth of field (DOF) isn’t what matters most. The IS works great and the sound it makes isn’t too noisy. I have achieved very sharp images even in middle or low light conditions, thanks to this feature. Now the flip side! This lens is heavy and too large for transportation. Definitively it’s not a good choice for traveling or if you are concerned for your safety. The lens is expensive and easily catches people’s attention. If you hold it for some time in your hands while it is attached to the camera body, you start feeling tiredness. Due to the weight and size the gravity balance point of the camera shifts from to body to some point along the lens so I tend to grab hold of the latter instead of the camera body, as usually happens with any other lens. When it comes to focusing, the process is a bit slow though I think it’s a normal behavior. Under low light conditions (for example, bulb lights) the lens might find it difficult to get a subject into focus. If that happens the focusing barrel goes back and forward till it gets something into focus. Over all: good lens!!!

Before buying this lens, I spent quite a bit of time debating between this lens and Canon 70-200 f4 L lens. The positive reviews and the IS feature of this lens swung my decision in favor of this lens. I have had this lens for about six months and I am extremely pleased with it. I am sure people will say that the 70-200 f4 L lens blows this lens out in various ways. But for some one who has a fixed budget and for whom photography is just a hobby not a profession the value that his lens presents is hard to beat. I simply couldn’t justify spending $500 more to get the 70-200 f4 IS lens.

The optical quality of this lens is really good. The pictures are sharp, with beautiful colors and contrast. This lens gives a very pleasing bokeh. Take a look at image 334 of customer images ( African Daisy) to see what I mean. I haven’t extensively tested the speed of Auto Focus, but from whatever little testing I did on flying birds I was satisfied by its performance. And finally the IS feature on this lens works really great.

When I bought this lens, I was looking for something that had longer reach than my 18-55 kit lens on my XT. I was pleasantly surprised with how much I liked the lens…though it didn’t blow me out of the water.

After shooting for a couple years and handling some really nice L series glass, this lens feels crazy cheap. The main thing I dislike about this lens is how the front element extends and rotates when it focuses. Also, you cannot manual focus while it’s in AF. Canon NEVER includes the lens hood which sucks but I believe it’s necessary especially when shooting facing the sun.

Performance:
I originally bought this lens to get better images at the local speedway, but have recently used it on my 5d2 to shoot recreational sports. After a few stints in flag football, I realized that it’s a terrific lens given you want to get up real close. You have to be really picky w/ the framing and extremely conscious of the backgrounds and distance-to-subject to get decent bokeh. This (http://photos-e.ak.fbcdn.net/hphotos-ak-snc3/hs084.snc3/15137_180353043674_818528674_2807800_328474_n.jpg) as opposed to this (http://photos-h.ak.fbcdn.net/hphotos-ak-snc3/hs028.snc3/11563_176623333674_818528674_2780434_578842_n.jpg). It’s only a f4-5.6 and not a f2.8, and while great images are not totally dependent on that fact, it would definitely be nice to have those extra stops.

The IS is great and has two modes; one for all around IS and one for panning. So that feature coupled with the newer cameras’ ISO capabilities = good slow shutter, hand-held performance.

But all in all, it’s a good bang for buck for the avid amateur. I’ve listed my gripes but considering all of them, I’d buy this lens again if I was tight on cash but needed the reach. If you can afford it, get a better, faster lens i.e. the 70-200 2.8L.

I bought this lens after using the Tamron 70-300mm lens for about 4 or 5 month. At first I was totally ready to trash the Tamron lens. Due to my economic situation I could not afford replace the Tamron. With time and practice it started producing better and better images quality and I started having more fun with it. The truth is, I was learning how to use it correctly. The Tamron is a good, well made lens at an excellent price which I intend to keep.

Now the Canon 70-300mm with IS USM is a totally different class of lens. Twice the price of the Tamron but the IS alone is worth that. Image quality can be anywhere from very good to breathtaking. This lens is very easy to use, well made and looks good. If you can afford this lens, buy it, you’ll like it. If money is a little tight, get the Tamron. You’ll have fun and become a better photographer as you save your pennys for the Canon 70-300mm IS USM.

I’m not a pro photographer. It’s a hobby. A few years ago when my kids started soccer I needed a great telephoto lens. I went into my local camera shop and told them I needed a great lens to take photos outdoors of my kids on the soccer field. The rep didn’t blink twice and handed me this lens. This probably the most used lens in my arsenal for taking outdoor photos. I take mostly photos of my kids and I prefer to catch them off-guard, so I sit to the side and just take shots of them when they aren’t really aware. I like that. I get some really meaningful photographs, one of which is one of my favorite photographs. It always makes me smile.

I’m sure the pros will say there are better lenses on the market, but really. For me, a mom wanting outdoor photos of her kids playing soccer. This is the best lens. It’s also very comfortable and easy to use. It feels good and responds well. I let a friend of mine borrow this several months back and she also took some amazing more artsy photographs with it and she more pro than I’ll ever be.

Overall, this is a great lens, you can read the specs for product details, I won’t go into all that, but know that if you need it for outdoor field-range shots, this is the perfect lens. Soccer moms unite! The only thing that this really needs and I keep forgetting to buy is a hood. Sometimes my photos are too exposed if it’s really sunny.

I bought this lens about a month ago when I purchased my Rebel XT.

I was initially dissapointed by the image quality but it turned out that I actually had a bad filter on the lens. Once I removed that cheap filter the lans came to life and has blown me away!!

If you read some of the forums there are actually Canon owners complaining that this lens is too good and has effectively devalued their expensive “L” lenses!

The only negative thing that I can say about this lens is that the front element rotates while focusing, making using a circular polarizer somewhat cumbersome. The Image Stabilizer really is a technological marvel though and will leave you wondering why every lens doesn’t come with it (the answer is that it adds to the weight and IS isn’t cheap).

This weekend was the first time the weather cooperated enough for me to try it outdoors. I went to a small local zoo and took a picture of a red fox from about 30ft away… through 2 wire fences… in sub-par lighting. I didn’t expect much. The picture actually came out and is so sharp I am having it framed.

Buy this lens NOW!

I owned this lens’ predecessor, the 75-300mm IS. That lens was horrible. When I read many good things about this new 70-300mm IS lens, I thought it was time to upgrade. But, it was difficult to decide whether buy this lens or Canon’s 70-200mm f/4L professional lens. I bought this lens and it was my mistake.

While it has numerous improvements over the 75-300mm IS, there are still some shortcomings with this lens that keep it from competing with the similar-priced 70-200mm f/4L.

First, starting at around 150mm-200mm and getting worse as you approach 300mm, this lens gives images that look soft (no, I’m not using any filters!). This is not an issue of focus, but of low-cost consumer-grade optics. You can stop the lens down and get some improvement, but then you lose your depth of field. (EDIT: The sharpness problem with my lens was the result of using it in portrait-orientation, a defect among the first batches of this lens. Canon repaired the lens for free and it became sharper, no matter the orientation, but still not as good as the 70-200mm f/4L).

Second, the focusing speed is slow. New in this lens is variable-speed focusing; as the zoom passes 200mm, the focusing speed slows. I assume this is to prevent the missed-focus hunting common with its predecessor. But, this makes it harder to track moving objects and keep them in focus.

Third, this lens suffers from very ugly purple chromatic aberration. This lens really shows this problem too, in that even small bright objects develop purple halos.

Finally, the lens gets larger as you zoom, the lens gets larger when you focus, the front of the lens moves when focusing, the focus ring moves when auto-focusing, the zoom retracts by itself when pointed upward (EDIT: last item was fixed by Canon during the above-mentioned service), and I’m sure there’s more I’m forgetting… But none of these problems exist with the 70-200mm f/4L.

This is not “the hidden L lens” as one reviewer said, it is nothing but a common consumer lens with a big price tag. The IS feature is the single sole benefit. If you have very shaky hands you might just need this lens. If you have very steady hands, with IS you can use this lens in the dark of night (assuming you have a very still subject). 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.

If what you want is a very high quality lens that will give you sharp photos in daylight; buy the 70-200mm f/4L lens instead, it even comes with a hood. The hood for the 70-300mm IS lens is another $40, making the 70-200mm f/4L a lower priced lens (and it even comes with a bag!).

If you would like a list of sites with reviews email
gumby (at) dontquotemeonthat (dot) com

I’m going with this lens over the 75-200 f/4L lens, the IS and extra zoom are worth the sacrifice of build quality and slight sharpness increase

Pros: It is light, fast, sharp and economical. It is currently my favorite carry-around lens. Adequate for birding and pseudo macro functions. Not a bad portrait lens. All of this is in the context of use with a 20D and Rebel. It is a full-frame 35 mm lens.
Cons: The lens face rotates with focus, so use of a circular polarizer is problematic. You choose MF or AF, but not both at the same time like the 100-400 L-Series.

Pros: Huge improvement on older 75-300. IS is excellent! Much more subtle in use than a white L lens
Cons: No ftm. Front element rotation

if your a newbie here’s some info

A lens is “fast” when it has a low f-stop… ok so when you have a smaller number the apature is bigger which allows more light through, so this means you can up the shutter speed. and still have enough light reach the sensor.

ok so lets say you have an out door shot if you have say an f/4 lens the shutter speed could be 1/250 of a second and you would get a good exposer. Now this lens can only go f/4

but if you in the same outdoor setting, had an f/2.8 lens you could jump to 1/500 of a second and get the same exposer. and freeze the action mmore effectivly, this i believe is why it’s a “fast” lens.

ok have fun and get it done

Well today I was like a kid with a new toy just got my new 70-300 mm this is my first image stabilizing lens so I was excited to try it out
so i took off my 70-200 4 L probably a good lens to compare with.
Well first thing is the weight it’s light and inconspicuous compared to my 70-200 L with its black finish ,
it feels very nice and its fast to focus, image stabilizion is excellent (Featuring the latest 3-stop Image Stabilizer for camera shake reduction) and the range is great 112mm to 480 mm on my XT Rebel.
Colours and sharpnesss are a not nice as my 70-200 f4 L
but image stabilization and weight and extra range make it very attractive , I am happy with it would liked a pouch and hood for the money come on canon it’s only a piece of plastic!

Buy Cheap Canon EF 70-300mm f4-5.6 IS USM Lens for Canon EOS SLR Cameras for Sale NOW!

Tagged with: Canon • Canon EF 70-300mm f4-5.6 IS USM • Canon EF 70-300mm f4-5.6 IS USM Lens for Canon EOS SLR Cameras • Lens for Canon EOS SLR Cameras

Filed under: Canon

Like this post? Subscribe to my RSS feed and get loads more!

LENS FOR SLR

Canon EF 70-300mm f4-5.6 IS USM Lens for Canon EOS SLR Cameras