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Canon EF 70-300mm f/4.5-5.6 DO IS USM Lens for Canon EOS Cameras by Canon
Digital product summary informationManufacturer: Canon Model: 9321A002 Product features: - Ultra-compact 70-300mm telephoto zoom lens with f/4.5 to 5.6 maximum aperture
- Incorporates Canon's Image Stabilization (IS) technology for low-light shooting
- Super-fast and silent autofocus with ring-type USM; 4.6-foot close focus distance
- Optimized to suppress ghosting and flaring; zoom lock button keeps lens secure
- Measures 3 inches in diameter and 5.6 inches long; 1-year warranty; accepts 58mm filters
Accessories:
Digital camera reviews of Canon EF 70-300mm f/4.5-5.6 DO IS USM Lens for Canon EOS CamerasDigital camera Review: A excellent lens, compact, good traveler Summary: 5 Stars
I bought this lens at the same time I bought the 20D -- when the camera was first sold. It's not the lightest lens around, but it's compact, quick focusing and has few if any discernible faults. It doesn't stick out in a crowd, at least until you rack it out with the hood on.
It was one of the early choices when I decided to move up to SLR Digital from other types -- and the old reliable 35mm SLRs.
I'd buy it again and I plan to use it on a 5D when it arrives, for a trip with me and the 20D, This is core travel lens for me. As for quality, it's very good. I own some Ls, but this dances in the same league. I was a professional who cut his teeth on Nikon Fs (and used other cameras up to 8x10). I've used optics from Leica to Nikon to Goerz. If your images aren't sharp, consider that it may be user error.
I mostly use autofocus, but frequently switch to manual and it fits the hand well either way. The balance is good.
I don't see the softness at 300mm others refer to, but typically there are sweet spots of f stop and focal length with zooms. Every lens has some inherent compromise -- fast or slow, fat or slim. I don't observe any softness, but I shoot only in RAW and do image processing outside the camera. JPGs are useful or unavoidable in places, but pointless if RAW is available.I do large prints 13x19 or larger and the image holds together as well as anything else I've used.
FWIW, in the first few days I owned this lens, I shot a long series on sea birds feeding -- and the images contained details I couldn't see clearly while shooting (more common than admitted). But the smooth zoom and auto focus made composition on moving objects easy. The camera lens combination was perfect. Better equipment does not makes you a better photographer, but it can help a good one. The image stablization is very good. It's great for sports photography, but remember that autofocus is sometimes not the answer (and sometimes the only rational answer).
It has a hood and bag supplied. I sometimes use a rollup rubber hood that fits across several lenses. The hood self-packs nicely in an event.
On the 20D (and others with the same sized sensor), this provides an equivalent to 112-480mm. If you intend to use a teleconverter, don't even consider the Canon unless they have a new one. It doesn't fit. I have a 1.4x and it works well with exposure and autofocus and extends the reach to 672mm. I'm not a big fan of this, but FWIW.
I typically travel with this lens, a 10-22mm EFS zoom (which won't fit the 5d), a Tamron 18-200, the 100mm macro, and a 35mm f/2 as a base lens. At some point, for travel at least, I'll sub the 24-70mm. Add two bodies, some computer junk. I won't decide on the kit for the 5D 20D combo for a while, but this one stays.
Weight. For some people, this is a bigger deal than they know. A camera bag weighs nothing for the first 20 minus. This lens and camera can get heavy. I don't find it a problem, but some might prefer a less compact design with the DO.
Summary of Canon EF 70-300mm f/4.5-5.6 DO IS USM Lens for Canon EOS CamerasCamera Lens, Canon, Canon EF 70-300mm f/4.5-5.6 DO IS USM Zoom Lens, 9321A002 Canon raises the stakes for professional photography with its EF 70-300mm f/4.5-5.6 DO IS USM telephoto lens with image stabilization. Thanks to a new triple-layered diffractive optical element (DO), this 70-300mm lens is less than 4 inches (10 cm) long. It can focus down to 4.6 feet (without rotating the front element) and a new zoom lock button keeps the lens safe and secure when not in use or used at the wide angle. A virtually silent ultra-sonic motor (USM) gives the lens extremely fast autofocus. The lens also includes Canon's Image Stabilization technology to dramatically reduce camera shake, compensating for approximately three stops in shutter speed without any perceptible increase in image blur. It's a great choice for professional photojournalists and serious advanced amateurs who need to contain the size and weight of equipment carried. DO Elements Use of the new three-layer DO lens drastically reduces the overall length and weight of the lens system increasing the refractive power of each lens element and reducing the spaces between elements. It's approximately 26 percent shorter and 36 percent lighter than any lens of comparable specifications. Zoom lock The EF 70-300mm lens features a zoom ring locking mechanism, locking the lens at its shortest total length. This helps to protect the lens from potential damage by preventing the zoom elements extending under their own weight, which might otherwise occur when the lens is mounted to a camera that hangs from a neck or shoulder strap. Image Stabilization The lens incorporates Canon's Image Stabilization (IS) technology, compensating for approximately three stops without any perceptible increase in image blur when shooting static subjects or panning. This increases the range of circumstances in which hand-held photography is possible, limiting the need to carry a tripod. Fast AF A rear focusing ring type USM, high-speed CPU and new AF algorithms combine to give the lens extremely fast auto-focusing. The ring-type ultrasonic motor (USM) converts ultrasonic vibrational energy into rotational force to deliver high-speed, high-precision, super efficient and virtually noiseless auto focusing, with good holding torque for rapid response and accurate stopping. Full-time manual override is featured, removing the possibility of damage to the autofocus mechanism during manual focus. The lens has a minimum focusing distance of just 1.4m throughout the entire zoom range. Ready for Digital Photography The lens shape and coatings have been optimized to suppress ghosting and flaring, making this lens ideal for use with digital cameras that are more susceptible to reflections off the recording media than are film cameras. Working with EOS The drive pattern of the lens is tailored to specifically match that of the latest EOS range, extracting maximum benefit from the lens' speed advantage. The lens comes with a case LP1116 and an exclusive hood ET-65B for shading against unwanted direct light.
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