The Sigma 105mm F2.8 EX DG allows greater working distance between the lens and subject. The Sigma 105 mm Lens is ideal for digital SLR cameras as well as film SLR cameras.
The Sigma 105mm F2.8 EX DG employs a new design concept for digital SLR cameras. Its new lens power layout produces an excellent optical performance and also reduces flare and ghost. The Sigma 105 mm Lens is designed to reduce the influence of harmful light caused by reflections from the digital image sensor.
The narrow angle of view is a great aid for simplifying backgrounds and shallow depth of field makes it easier to handle the composition. The Sigma 105mm F2.8 EX DG would have an equivalent field of view of a 178mm telephoto macro lens on a digital SLR camera (when used with the SD10).
The Sigma 105mm F2.8 EX DG is very suitable for taking pictures in nature and it enables to use of natural light conditions or flash. The greater working distance of the Sigma 105 mm Lens is very advantageous when taking the picture of a flower among the branches or an insect. You do not shake your subject when you want to take its precise details without blurring by using a tripod.
Depth of field of medium telephoto macro lenses is generally very shallow; however, Sigma, Canon and SONY mounts of this lens have a minimum aperture of F45 (or F22 for FOUR THIRDS or F32 for Nikon and Pentax mounts) for incredible depth of field.
The Sigma 105 mm Lens boasts compact dimensions of 74mm (maximum diameter) and 95mm (overall length). The Sigma 105mm F2.8 EX DG has a filter size of 58mm and, at just 450gms, is also extremely lightweight. The minimum focusing distance of 31.2cm (12.2) is capable of macro photography with a maximum magnification of 1:1.
The Sigma 105mm F2.8 EX DG is equipped with a Focus Limiter Switch that limits the AF range so improving the speed and accuracy of autofocus. It also incorporates a Dual Focus (DF) system that is designed to make the lens easy to hold during auto focusing. The large focus ring offers smooth and positive action whilst focusing manually. A screw-in hood is included, for convenient use of circular polarizing filters.
This product was added to our catalog on Sunday 29 March, 2009.
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