Not quite identical twins, the Sigma 18-250mm has almost exactly the same dimensions and the same 72mm filter thread, zoom lock and general finish as the Sigma 18-200mm f/3.5-6.3 DC OS. There are ...

Handling and Features Performance Verdict Specification This 4.2x super-telephoto zoom lens provides an angle of view roughly equivalent to a 90-375mm range on a 35mm format camera.

The angular field for the 250mm zoom lens is 3.456 degrees, making the size of the Moon in the photo 0.4838 degrees, or 29.03 minutes of arc if you like the charmingly archaic units astronomers use.

Buying the right camera, lens, accessory or software to suit your photography is really important. Our product reviews offer independent views with hands-on opinion and honest verdicts aimed to ...

The new AF18-250mm F/3.5-6.3 Di II and AF 70-300mm F/4.5-6 Di lenses are designed for cameras with ‘APS-C sized’ sensors and feature built-in AF motors for Nikon’s D40 and D60 cameras. The lightweight ...

September 27, 2006: Tamron has released details of a new 18-250mm zoom lens designed exclusively for DSLR cameras with APS-C sized imagers, which boasts a world-leading 13.9x zoom magnification. The ...

Also announced at Photokina from Pentax are the following lenses, flash and other trinkets: DA* 60-250mm f/4 ED SDM, DA* 55mm f/1.4 SDM, AF160FC Ring ...

The lens will be available at the end of April, priced at £2,899 / $3,299.95, while the 1.4x teleconverter (GF1.4X TC WR) will set you back £749 / $849.95.

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