onto the mount of Ian Andrews camera for a shakedown of this new lens from Sigma. John Riley has been putting the super-telephoto Tamron 150-500mm f/5-6.7 Di III VC VXD lens through its paces to ...

The 500mm F5.6 focuses as near as 10.5 feet (3.2m) for a meager 1:6 life-size magnification ratio. The Sigma 150-600mm Sports is better here since it gets 1:2.9 reproductions at its 180mm focal ...

For this test, the Sigma 150-600mm f/5-6.3 DG OS HSM Contemporary lens was attached ... crops are due to changes in natural light during the session. The full frame at 500mm Centre sharpness is ...

Whenever we go to a photo tradeshow, there are always people in the Sigma booth who want a chance to shoot with their massive green 200-500mm APO lens. Now, however, they have someting with even more ...

The 500mm F5.6 focuses as near as 10.5 feet (3.2m) for a meager 1:6 life-size magnification ratio. The Sigma 150-600mm Sports is better here since it gets 1:2.9 reproductions at its 180mm focal ...