Posts Tagged ‘Wide Angle’
Canon EF 17 40mm f 4L USM Ultra Wide Angle Zoom Lens for Canon SLR Cameras
Broaden your perspective with the Canon EF 17-40mm ultra-wide-angle zoom lens. Ideal for both film and digital SLR cameras, the lens offers three aspherical lens elements in addition to a Super UD (ultra-low dispersion) glass element, creating superior optics in all conditions. In addition, the lens focuses as close as 11 inches (0.28mm), and offers both Canon’s full-time manual focus and a powerful ring-type ultra-sonic monitor (USM) that produces fast and silent autofocus. Other features include a constant f/4 maximum aperture, the choice of screw-in 77mm filters or a holder in the rear of the lens for up to three gel filters, and optical coatings optimized for use with digital cameras. Boasting weather-resistant construction similar to other high-end L-series cameras, the lens carries a one-year warranty.
- Focal length: 17-40mm
- Maximum aperture: 1:4
- Lens construction: 12 elements in 9 groups
- Diagonal angle of view: 104 to 57 degrees (at 30 feet)
- Focus adjustment: Inner focusing system with USM
- Closest focusing distance: 0.9 feet
- Zoom system: Rotating type
- Filter size: 77mm
- Dimensions: 3.3 inches in diameter, 3.8 inches long
- Weight: 1.1 pounds
User Ratings and Reviews
5 Stars Moved me to another level….
This lens is a must for those looking to shoot at another level. It is FANTASTIC!!! Thank you so much for your prompt delivery of the produce. It arrived in excellent condition, just as promised!
2 Stars It’s going back!
I orderd this lens a few days ago and I am not keeping it. Here is my review
Pros:
* Solid build quality
* Fast and quiet autofocus
* Well controlled Barrel Distortion even at 17mm.
Cons:
* After testing this lens for 2 hours. 95% of the pictures were comming out dark with some indoor pictures having dark corners even with my flash on. Picture taken at 2pm on a bright sunny day were dark and colors were dull!!!
*My other L lens EF 70-200 f 4 (from 4 years ago) takes amazing picture compared to this one.
Conclusion
I think this is quality assurance issue. We are in bad economical times and Canon is getting cheap.
Now I have to spend $20 to send it back…I am thinking that I am much better off walking into a store and paying the extra bucks and test the lens before buying it…or get a used one from 4 to 5 years ago. In otherwords treat any lens produced in the last 2 years like a Sigma lens test it before you buy it
5 Stars Incredible Lens
My boyfriend recently purchased the Canon 17-40mm as an awesome gift to me. It is my first “L” lens. I have a Canon Digital Rebel XTi (a 1.6x crop body) so this lens is pretty wide, but not ultra wide. It is a great walk-around lens, and it nicely compliments a crop camera body, though you won’t get the effect of an actual ultra wide. If you want the linear distortion or super panoramas that UWA lenses can deliver, you may want to consider Canon EF-S 10-22mm f/3.5-4.5 USM or perhaps the Tokina AT-X116PRDXC AT-X PRO DX 11-16mm. The build quality is incredible, much more durable than my Canon 85mm 1.8 and 28-135mm. I love this lens!
4 Stars Far sharper than the 18-55mm IS lens
I bought this lens recently and have been very happy with it. People who say this lens is not any sharper the Canon 18-55mm IS lens either 1) have a bad copy of the 17-40mm or 2) they got an exceptionally sharp 18-55mm. My 18-55mm IS is sharp, but when comparing photos taken with both lenses, even at f/8, the 17-40mm clearly shows more detail and contrast. It is just MUCH, MUCH sharper. The quality of construction is also exceptional, and after this lens, I might opt for another L lens to replace my Sigma telephoto.
Having said this, however, there are two weaknesses with this lens:
1. No Image Stabilization. In this regard, the 18-55mm IS is superior since you will likely get a lot more non-blurry shots at night when you have to slow down your shutter speed. I myself have no problem with this since I don’t intend to use the 17-40mm at night but rather my Canon SD880IS for wide-angle shots and my Canon 35mm f/2 for shots of people or moving things.
2. The missing 41-55mm focal length. I rarely use this focal length, and since I have a Canon XT, the real focal length of the 17-40 is like 27 to 65, which is more than good enough for me.
So . . . overall, I highly recommend it. But this is NOT a lens that will do everything you need a lens to do. I don’t think such a lens exists, but if it did for a cropped-sensor camera, it would probably be the Canon 17-55 IS. But again, it’s heavier, more expensive, and has a crappier construction. So the 17-40 is the good compromise.
2 Stars Same image quality as kit lens!!!
Reading the reviews, why do you all sound like sales people? What is in it for you if I buy or not??
I have been using my kit lens EF-S 18-55mm 3.5-5.6 IS on my Rebel Xsi. I was looking for a lens that would give my pictures that punch/pop sharpness even when viewed in my LCD.
I decided to try an L series lens…took a bunch of tests various conditions…anylized in PS…NO DIFFERENCE IN SHARPNESS/IMAGE QUALITY! Went back to store and salesman couldn’t explain.
The IS in kit lens actually made it sharper when shooting handheld indoors!The L was blurry.
The construction of L is certainly better, but image quality wise…the same.
Is there a lens that will produce a better quality image than the kit lens?
Prove it. The sample pics posted with each lens do not convince me.
Is there some one else in the same situation who has found the solution?

Lens hoods are primarily designed to prevent unwanted stray light from entering by extending and shading the end of the lens, ensuring no problems with vignetting or motor functions. Additionally, since the end of the lens is extended, you also get the added benefit of some extra protection from accidental impact. Lens hoods match the specific focal length of the lens it was designed for.
This lens hood fits the following Canon lenses:
- EF-S 18 to 55mm f3.5-5.6
- EF 28 to 80mm f3.5-5.6 II
- EF 28 to 90mm f4-5.6 II USM
- EF 28 to 90mm f4-5.6 II
User Ratings and Reviews
3 Stars Does not fit easily
This hood does not fit on the EF-S 18-55 mm lens easily. Sometimes I feel as though it might damage the lens. Once on the lens the camera looks nice. Due to the wide angle of the lens the hood is of little use technically. It would have been better if it was fitting easily on the lens.
5 Stars Canon EW-60C Lens Hood
Lens Hood Arrived Fast and packaged nicely. Hood works as described. I have only had the opportunity to use it for a couple of pictures so far.
5 Stars Perfect hood
I purchased this hood to use with my kit lens on my Canon Rebel XSi. It works great and stores perfectly (put on backwards). I highly recommend this hood.
4 Stars What, no hood?
“I know, let’s sell the lens hood separately. We can make killing on selling them separately and just think more wasteful packaging. I love it. Maybe we can even figure out a way to sell the glass as an accessory”.
3 Stars Expensive, Poor fit, disappointing
I had to replace a sigma 18-50mm when the auto focus broke – Annoying, but the lens had seen several years of hard use.I purchased a Canon EF-S 18-55mm f/3.5-5.6 IS SLR Lens to replace it. Since Canon does not ship a hood with their lenses I had to order this separately – If you can find another hood to fit this lens for less than $25USD, do it. Also I had a hard time fitting this hood to the lens. The hood has to be placed just so, and then you need use considerable force to seat the hood. In Canon’s defence I do have mild arthritis in my hands, but this was ridiculous.
Canon Powershot SX10IS 10MP Digital Camera with 20x Wide Angle Optical Image Stabilized Zoom

Whether the action is fast or slow, close up or far away, youll always get the shot you want with the
PowerShot SX10 IS. This camera puts you on the cutting edge of advanced technology, with an incredibly
powerful 20x optical zoom, 10-megapixel resolution, and new DIGIC 4 Image Processor for high-performance
face and motion detection.
User Ratings and Reviews
5 Stars Amazing ZOOM and Stabilization
If your pictures aren’t turning out, you’re probably doing something wrong. Small changes make a huge difference. Especially simple things like the White Balance/changing the light source. Take a picture of a cut open watermelon and watch the red heart go from auto bland to a bright juicy red. You can even set the Red in the Colors menu. But just changing the light source makes all the diffence in the world! The most amazing thing with this camera is the Stabilization!!! You can free hand all the way into the digital zoom and have your pictures come out clearer and better than they even look through the lcd. I’m constantly amazed at how stable it is. That’s what made me choose this over the Nikon with 20x optical zoom and the rest of the competition. Just zoom out in the store and watch it find and track Faces from 10′ to 100′. It even seperates the Facial Recognition pic.s when you download into it’s own file, just faces.
Just for the hell-of-it, when I registered this camera, I let CANON know that my 4 year old A75 PowerShot stopped working. It blurred out with purple vertical lines. They said to send it in and they’d fix it for free if it was one of those that got a bad CCD. Ten minutes ago the Fed Ex guy brought it back and it’s fixed!!! FREE, new CCD and adjusted and cleaned! Amazing. Just that alone makes me glad that I picked the Canon. What other company would pay shipping and fix a 4 year old camera for FREE?! NONE!!! Very Impressed with Canon. They’ve made me a loyal customer for life. They probably fixed it because I just bought this SX10IS. But, they didn’t have to. I never expected them to do this. I was just curious to why my A75 went bad and if it was worth fixing to use as my work camera. Anyway, I never write reviews, but no one’s ever fixed a camera that’s years past warranty for free and had it back in under 2 weeks!!! My next camera will be a Canon, and the one after that, and after that… When I was researching for the SX10IS, the main complaint was that the lens cap gets lost. Mine hasn’t and they make caps with a lanyard for like [...] bucks! What it comes down to is, shake all you want, your pictures will still come out butter smooth, even a mile away!!!
4 Stars Very nice camera
You should read the more in-depth reviews first, but I just wanted to add my voice and say that this is a really nice camera.
If you are on the cusp of getting an SLR but not quite sure you want to delve into it (as I was), this is a good choice.
I really like most aspects of it and don’t have any major complaints. Getting it to focus properly in the environments I used it in (I was photographing performers at music events) was pretty frustrating at times, but once I got to know it well enough it was better. The built-in flash is fairly useless for low light settings where the subject is more than a few feet away.
I also got this for the video capability but was very annoyed by the sound recording. In loud environments, even on the lowest input-volume setting, it will record with lots of distortion. I didn’t understand this because friends of mine have older and lower-model PowerShots and in the same environments they could record without distortion. You’d think this would be possible on the better model, but apparently not.
Other than that, a very solid product all around.
4 Stars Powered zoom system too fast
I’m an experienced photographer who grew up with SLR, medium format, and view cameras while working as a pro in the military and commercially afterward. Today, I shoot only for some business and recreational needs. This is a really good compromise camera for someone wishing to avoid the bottomless cost of and SLR, along with the additional weight. My one beef is the electrically powered zoom, which reacts way too quickly. My last camera was a Minolta Dimage, which is no longer made. It, too, was a super zoom, but the lens barrel had to be manually twisted to zoom in/out. This allowed much, much finer adjustment of the zoom at a speed of the users choosing. As an all around compromise camera, this is a good value. There is always some degradation of image quality that’s a given with a superzoom camera, and that is evident in this product.
3 Stars Caution is the word for this camera
You get what you pay for, and I evidently down-sized in some unanticipated ways from a Panasonic FZ-50 to this Canon, hoping for the added benefit of the extra zoom. Just beware of this camera’s limited capabilities in low light – and without bright light – the problem of uncertainty of focus at maximum zoom. When you change the ISO to 200, you pick up discernible noise, inapparent when you check you pictures on the LCD. I should add that the “wheel” which manages ISO and other changes is cheaply made and awkward to use and that both the view finder and the LCD are – frankly – not quality. By the way, the video button, which is easy to get to, is in fact awkward to use and I find I have to push down. I will say I have no problem with the rechargeable battery solution – though its a nuisance – and an obvious way of Canon controlling costs. Do know I spent much less for this camera than for the Panasonic when it first came out, so I understand I got what I paid for. There are some interesting bells and whistles, but these compensate for the shortcomings in the basics. My hunch is that this is the case with the SI 20 as well. But with any luck Canon won’t have me as a consumer again.
4 Stars All Auto Functions is excellent. All Manually Functions is not very bad.
This is my 6th digital camera and 3rd from Canon.
This camera is not for everyday using (size and weight).
This is “weekend-camera”. ![]()
General characteristic is in the title.











