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Dennis Hissink : 2004-01-29 05:00:00
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Canon 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.
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Dennis Hissink : 2004-01-28 08:00:00
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A fourth DX format Nikkor lens is introduced today to join the growing range of lenses designed specifically for Nikon digital SLR cameras, the AF-S DX Zoom-Nikkor 18-70mm F3.5-4.5G IF-ED. With a practical wide-angle to telephoto zoom range of 18mm to 70mm it offers the analogue 135 format equivalent to 27-105mm for general photography with Nikon D series digital SLRs but attractively priced to enable anyone to start shooting digital SLR photography irrespective of the current camera system they might own. This is the first lens of its class to be offered in DX format, enabling a wide focal length range ratio. It effectively upgrades two existing AF Nikkors, it is smaller, lighter and more versatile than the existing AF 28-105 lens.
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