LG G6 review Samsung Galaxy S8 Apple iPhone Edition Samsung Galaxy Note 8 HTC U 11 Sony Xperia L1
LG G6 review Samsung Galaxy S8 Apple iPhone Edition Samsung Galaxy Note 8 HTC U 11 Sony Xperia L1
  2017 NEWS APPLE CANON FUJIFILM HTC HUAWEI LG MOTOROLA NIKON NINTENDO NOKIA OLYMPUS PANASONIC PENTAX SAMSUNG SONY  
Samsung Galaxy
 
     
Powered by True
Counted by OneStat.com
Dennis Hissink : January 29th 2004 - 05:00 CET

New Canon EF70-300mm f/4.5-5.6 DO IS USM zoom lens


Digital Camera Review Test Appareil Photo Numerique Prueba camara digital Digitale Camera Test Dijital Kamera Incelemeleri Digitalkamera Test Digitalkamera
CanonCanon today releases the EF70-300mm f/4.5-5.6 DO IS USM telephoto zoom lens. A new triple-layered diffractive optical element (DO) has enabled Canon to produce a 70-300mm lens less than 10cm long. The lens also includes Canon's Image Stabilisation technology to dramatically reduce camera shake, compensating for approximately three stops in shutter speed without any perceptible increase in image blur. A virtually silent ultra-sonic motor (USM) gives the lens extremely fast autofocus. Full time manual focusing, a circular aperture diaphragm, and a zoom ring lock mechanism to fix the lens at the shortest focal length are all built in. The lens boasts image quality approximating that of Canon's L series professional lenses.
New Canon EF70-300mm f/4.5-5.6 DO IS USM zoom lensIt is likely to appeal to professional photojournalists and serious advanced amateurs with a need to contain the size and weight of equipment carried.

DO Elements
This is the first DO lens to be released by Canon since it astonished the photographic community with the award winning EF 400mm f/4 DO IS USM: A lens approximately 26% shorter and 36% lighter than any lens of comparable specifications. 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. Chromatic aberration normally associated with increased compactness was corrected by positioning the Three-layer type DO lens on the front lens side. This, coupled with the correction of spherical aberration through the use of aspherical surfaces, delivers high image quality and high levels of resolution and contrast, rivalling the performance of Canon’s legendary L-series lenses.

Zoom lock
The EF70-300mm f/4.5-5.6 DO IS USM 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. This might otherwise occur when the lens is mounted to a camera that hangs from a neck or shoulder strap.

Image Stabilisation
The lens incorporates Canon's renowned Image Stabilisation (IS) technology, compensating for approximately three stops without any perceptible increase in image blur when shooting static subjects or panning.

This vastly increases the range of circumstances in which hand-held photography is possible, limiting the need to carry a tripod. During major movement in a single direction, IS Mode 2 technology automatically determines that the movement is conscious panning and halts correction in the relevant direction, thereby preventing shake-return. The IS system automatically detects lack of movement / vibration to prevent operation errors when a tripod is in use. IS efficacy increases and lower overall size have been achieved through improvements in the moving contact sections of the IS lens barrel, the IS lens group barrel locking mechanism and the shake-detection gyro.

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.

Ideal for digital
Lens shape has been optimised and new coatings added to suppress ghosting and flaring. This makes the lens ideal for use with digital cameras that are more susceptible to reflections off the recording media than are film cameras. When fitted to digital cameras with an APS-C size sensor such as the EOS 10D, the lens will have an equivalent focal length range of 112 - 480mm in the 35mm format.

Attractive defocusing
Appropriate refractive and DO elements are combined to realise low distortion, high corner-to-corner resolution throughout the entire zoom range. As with all EF lenses, aperture is controlled with an EMD (electromagnetic diaphragm) for fast, quiet, highly precise control and the lens incorporates a near circular aperture diaphragm for beautifully pleasing background blur.

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.

In harmony with the environment
In keeping with Canon's stringent environmental policy, only lead free glass is used in the lens’ optics.




   Canon introduces new MultiPASS MP390 printer
   New Canon i900D and i960 Photo Printers introduced
   New Canon i455 and i475D Desktop Photo Printers
   Next  Exclusive First Look of the Nikon D70 DSLR
   Previous  Announcement specifications Nikon D70
   News by brand:Canon
   News by category:Lens
   News by brand and category:Canon Lens


Android smartphone
Latest Canon announcements
Canon premium imaging capture technology
Canon EOS merchandise products
Canon EOS M6 review
Canon PowerShot SX730 HS compact digital camera
Canon EF-S 35mm f/2.8 IS STM macro lens
Canon EOS 6D Mark II full-frame camera
Canon offers ProStream premium printing solutions
Canon DLP projector with Interchangeable Lens system
Canon EOS 800D / EOS Rebel T7i test pictures
Canon EOS 77D sample images
Canon unveils 2017 EOS DSLR camera bodies
Canon EOS M6 sample pictures
Canon EOS M6 system camera
Canon Powershot G9 X Mark II sample photos
Canon PowerShot G9 X Mark II and VIXIA camcorders
 
Twitter LetsGoDigital
Latest news headlines
Trend report for Augmented Reality Gaming
Vodafone releases Smart V8 phone
Nintendo Super NES Classic Edition 2017
New image sensor for phones with edgeless displays
16 Megapixel camera sensor for high-end smartphones
Amazon Echo Show starts shipping
Samsung video ad Awarded at Cannes 2017 Festival
Samsung Smart Switch transfers content to new phone
Panasonic Lumix FZ80 review
Canon EOS 4K Digital Cinema Cameras
Samsung medicinal products for affordable healthcare
New smartphone user interface unveiled by Panasonic
T-Mobile becomes best Unlimited carrier in Holland
Varjo VR headset with 70 megapixel resolution
Market forecast for smart wearable products
   
  5G Accessories Android Galaxy iPhone Rumors Premium smartphones Camera Camera test Nikon SLR Underwater photography   CES CeBIT IFA Photokina PMA