Sigma 17-70mm F2.8-4 OS Macro OS HSM Contemporary (C) for Nikon
Being able to shoot close to the subject is a crucial element in photography. This lens features a minimum focusing distance of 22cm and a maximum magnification ratio of 1:2.8, producing results that rival those of macro lenses. At 70mm, its working distance is 5.52cm. When used as a telephoto lens, it's so close to a dedicated macro lens in performance the lens hood seems to touch the subject. Since its range
extends from the 35mm equivalent of 25.5mm to 105mm, the lens is perfect for shooting close-ups of fashion accessories, cuisine, flower arrangements and much more. Uncompromising in every aspect of lens
design, Sigma has even chosen not to place the product name on the front of the lens to prevent reflection of the letters during close-up photography.
The zoom gear for this lens in a Nauticam housing is the Nauticam SN1770OSC-Z Zoom Gear for Sigma 17-70mm Contemporary.
Sigma Hypersonic Motor
HSM (hypersonic motor) delivers high AF speed and extremely quiet performance.
Sigma's own unique OS (Optical Stabilizer) function is incorporated. It offers effective correction of approximately 4 stops, which makes it possible to compensate for camera shake even in macro range photography where a small blur can be easily identified.
Note: The closer the lens is to the object, the less effective the OS function is.
When photographing with point light sources such as electric lights or reflections on a body of water in the background, the rounded 7-blade diaphragm helps produce an attractive bokeh effect - even at large-aperture settings.
||16 Elements in 14 Groups
|Angle of View
|Number of Diaphragm Blades
|Minimum Focusing Distance
||22 cm / 8.6 in
|Filter Size (mm)
(Diameter x Length)
|79mm x 82mm mm/3.1in x 3.2in
||465g / 16.4oz|