Sigma EX

Description: Model ID 257944 / Sigma EX - Macro lens - 105 mm - f/2.8 DG - Nikon F / Sigma Corporation is pleased to announce the launch of the new ... more

Sigma EX ... Macro 105mm F2.8 EX DG lens. This medium telephoto macro lens employs a new design concept for digital SLR cameras; its lens power layout produces an excellent optical performance. The new lens coating cuts down ghost. The DG lens is designed to reduce the influence of harmful light caused by reflections from the digital image sensor. Its outstanding optical performance provides the ultimate correction against lateral chromatic aberration and distortion. This lens boasts compact dimensions of f74mm (maximum diameter) and 95mm (overall length). It has a filter size of f58mm and, at just 450gms, is also extremely lightweight. The minimum focusing distance of 31.2cm (12.2in) is capable of macro photography with a maximum magnification of 1: 1. It is possible to enjoy photography from life-size close-up to infinity. Sigma, Canon and Konica Minolta mounts have a minimum aperture of F45 for incredible depth of field (or F32 for Nikon and Pentax mounts). This lens is equipped with a "Focus Limiter Switch" that limits the AF range so improving the speed and accuracy of auto focus. 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 telephoto macro lens has an equivalent field of view of 178mm on a digital SLR camera (when used with the SD10).

Newest Review: ... 1:1 macro but the subject will be almost touching the front element. The 105mm Sigma has a working distance of about 10cm ... more

... from the front of the lens (confusingly, some manufacturers give working distance from the sensor, without taking into account the length of the lens barrel) at 1:1. This is acceptable for hand-held outdoor macros as the lens does not cast a shadow on the subject. At lower magnifications you can photograph insects without getting so close as to scare them away. If your intended subject is very flighty, you might consider the larger, heavier, Sigma 150mm macro. Switching between auto and manual focus requires you to (a...more

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Price Comparison for Sigma EX

	EX telephoto lens - 300 mm The multi layer lens coating reduces flare and ghost, which is a ... Last Update 21.12.2009 05:44	£ 2,421.99	£ 4.59
	EX macro lens - 105 mm Sigma Corporation is pleased to announce the launch of the new Ma ... Last Update 21.12.2009 05:44	£ 457.01	£ 4.59 In Stock
	EX zoom lens - 10 mm - 20 mm 10 - 20mm F4 - 5.6 EX DC HSM lens allows enjoyment of super wide ... Last Update 21.12.2009 05:44	£ 506.79	£ 4.59
	EX macro lens - 50 mm Optimized image quality for Digital SLR cameras. Floating Interna ... Last Update 21.12.2009 05:44	£ 292.89	£ 4.59
	EX fisheye lens - 15 mm This diagonal fisheye lens has an angle of view of 180 in the dia ... Last Update 21.12.2009 05:44	£ 640.75	£ 4.59
	EX fisheye lens - 4.5 mm This autofocus circular fisheye lens has an angle of view of 180 ... Last Update 21.12.2009 05:44	£ 817.64	£ 4.59
	EX fisheye lens - 10 mm This autofocus fisheye lens is designed for use with digital SLR ... Last Update 21.12.2009 05:44	£ 640.75	£ 4.59
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Read Reviews for Sigma EX

Sigma EX: A capable telephoto macro lens (504 words)
by - written on 18/12/09 (Very useful, 5 readings)
Rating:

This telephoto macro lens was the first lens I purchased for my DSLR. It was intended for insect macrophotography, and has not disappointed. At around f8, the lens is very sharp; it is softer wide open, but this is not a problem for macros as the depth of field at f2.8 is too shallow anyway. At normal macro apertures I have no complaints. F16 and smaller are best avoided owing to diffraction. The lens is optimised for macro use and is less successful as a telephoto, perhaps because contrast is rather low. It is also prone to flare - again, not usually a problem with macros. Build quality is good, on a par with mid-range lenses from other manufacturers, and the ... Read the complete review

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Processing/Quality:	100%	Reliability:	100%
Ease of use:	50%	Picture quality:	100%
Battery life:	100%

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Technical Details for Sigma EX

Product Description	Sigma EX macro lens - 105 mm
Lens System	Macro lens
Mounting Type	Nikon F
Lens Aperture	F/2.8
Focal Length	105 mm
Min Focus Range	31.3 cm
Focus Adjustment	Automatic, manual
Lens Construction	9 group(s) / 10 element(s)
Special Functions	Macro
Filter Size	58 mm
Length	9.5 cm
Weight	450 g