Sigma 150-600mm f/5-6.3 DG OS HSM - Contemporary Telephoto Lens for Nikon with TC-1401 Teleconverter

Portability Meets Versatility

The Sigma 150-600mm 5-6.3 DG HSM OS Contemporary was created around the concept of maximum portability meets utmost image quality in a variable apertureAPERTUREAperture, shutter speed and ISO form what is known as the exposure triangle in photography. Aperture refers to an opening inside the lens, similar to the iris of your eye, that changes in diameter to control the amount of light that enters a camera. Aperture is expressed in f-stops: the lower the number, the larger the aperture, e.g. f/1.4 is larger than f/8. A larger (or wider) aperture allows more light to pass through the lens to the sensor (film) as a picture is taken, particularly useful in low-light conditions. A larger aperture also produces a shallower depth-of-field, and thus more background blur. hyper-telephotoTELEPHOTOA lens with long focal length capable of making distant objects appear nearer thus larger. Essentially, it isolates and magnifies the subject so that it appears as a full image when shooting from a distance. Telephoto lenses are ideal for photographing subjects that are further away, such as wildlife and sports photography. zoom lensZOOM LENSAllows a camera to, unlike a fixed-focal length or prime lens, change smoothly from a long shot to a close-up or vice versa by varying the focal length. A true zoom lens, also called a parfocal lens, is one that maintains focus when its focal length changes. Due to more moving parts, zoom lenses often produce images of slightly lesser quality than their prime lens counterparts. However due to the inherent flexibility of being able to vary the focal length, they are extremely popular for photography where composition needs to be adapted quickly - such as at weddings, for example.. Lightweight and compact, this s zoom can handle any long-reach photographic situation one may encounter. This 150-600mm Contemporary boasts updated Sigma technology such as a quiet and optimised Hyper Sonic Motor (HSM) and a new Optical Stabiliser (OS) with an accelerometer for improved panning photography both vertically and horizontally, essential for birding, wildlife and motor photography. The Sigma 150-600 Contemporary also touts a new zoom lock switch that can be locked at any focal lengthFOCAL LENGTHMeasured in mm, it is the distance from the focal point of a lens (its centre or curved mirror where light converges) to the plane of the image sensor (film) when an object is in focus. A shorter focal length lens sees a wider image and a longer focal length brings your subject closer. For example, a 15mm lens sees a very wide image and is perfect for landscape photography. Conversely, a 500mm lens sees a very narrow image, brings the subject much closer and is thus great for subjects that are far away, like a bird in a tree. With zoom lenses, its minimum and maximum focal lengths are indicated, for example, as 24-105mm. A zoom lens allows you to change the lens’ focal length, with shorter (wide-angle) and longer (telephoto) options, whereas a fixed focal length lens requires you to move back and forth to find the correct image composition. and a new manual override (MO) switch is incorporated for improved focusing control. Working with the Sigma USB dock, this lens allows for maximum customisation such as firmware updates and adjustments to the focus limiter, AF speed and OS view.

Features

• First hyper-telephoto zoom from the Contemporary line
  
• Lightweight and compact in construction for higher usability
  
• Water and oil repellent coating on front glass element makes maintenance of the lens surface easier
  
• Dust proof and splash proof mount