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With a 35mm equivalent focal length range 180 - 450mm, this lens offers a Telephoto and Powerful Telephoto perspective.
*Recommendations are based only on the features necessary to perform the application successfully and do not take into account the relative image quality of different lenses
Portraits are best shot with focal lengths between 85 and 300mm depending on whether shooting mid-length or close-ups and the amount spacial compression wanted. Depth of field is the most important tool to manipulate and a fast lens will give more scope for creative treatment
High foreground to background compression of Static/Slow-moving subjects
High focal lengths reduce the perceived distance between foreground and background or they can be used for better magnification of subjects that are not possible to get closer to. When operating telephoto lenses at 500mm or above focal lengths without image stabilisation or camera support, it is necessary to use shutter speeds over 1/500 sec, making those lenses only suitable for daylight exposures.
APO (APO Lens)
In order to attain the highest quality images, the APO lens has been made using special low-dispersion (SLD) glass and is designed to minimize color aberration.
OS (Optical Stabilizer) Function
The OS (Optical Stabilizer) function uses two sensors inside the lens to detect both vertical and horizontal movement of the camera. This function works by moving an optical image stabilizing lens group, to effectively compensate for camera shake. To handle all types of shooting conditions, the system has two optical stabilizer modes. Mode 1 determines camera shake in vertical and horizontal panning and compensates for image blurring. It is therefore effective for taking general photography or for shooting landscapes and other static subjects. Mode 2 detects vertical camera shake and compensates for blurring. It is effective for panning the camera to photograph moving subjects such as motor sports.
HSM (Hyper-Sonic Motor)
HSM stands for ""Hyper Sonic Motor"". The HSM motor is driven by ultrasonic waves and it makes auto focusing, precise, silent and high-speed. Sigma's HSM version lenses are available only for AF Sigma, Canon and Nikon AF cameras.
Conv (APO Teleconverter EX)
This lens can be used with the APO Teleconverter EX. It can increase the focal length and will interface with the camera's AE (automatic exposure) function.
EX (EX Lens)
The exterior of this lens is EX-finished to denote the superior build and optical quality, and to enhance its appearance.
DG (DG Lens)
These are large-aperture lenses with wide angles and short minimum focusing distances. With an abundance of peripheral illumination, they are ideal lenses for Digital SLR Cameras whilst retaining suitability for traditional 35mm SLRs.
- 120-400 DG OS HSM
- Weight (g):
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