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Sigma 18-200mm f/3.5-6.3 DC

Price: £250.00

This is one of the cheapest lens in this category and is available in Canon, Nikon, Pentax, Sigma and Sony mounts...

Pros

Price, great chromatic aberration control

Cons

Inconsistent performance, low resolution at 200mm

Design 16/20
Image Quality 17/20
Performance 17/20
Value 17/20
Features 16/20
Score 83%

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Main Review

This is one of the cheapest lens in this category, and it's available in Canon, Nikon, Pentax, Sigma and Sony mounts. It doesn’t offer image stabilisation, and so is best suited to cameras with on-board IS.

Consisting of 15 elements in 13 groups, it includes two Super Low Dispersion (SLD) elements and two hybrid aspherical optics to deal with distortion. Compared with some others, this is a relatively simple lens at a reasonable price.

Its small size and light weight make it useful for travelling, while the zoom operation is fluid, only losing a little traction at 200mm. It’s among the noisiest with regards to focusing.

This lens does a great job at controlling chromatic aberrations at 200mm, with a blinding result at the centre and above average in the corner. Elsewhere the lens puts in a lacklustre performance, with the chromatic aberration readings at 18mm at about average for this type of lens. The resolution, while peaking at nearly 1200lwpph at f/4, rapidly fall offs into mediocrity. At 200mm, the low resolution is matched only by Nikon's alternative. 

Verdict

A bit of a disappointment with inconsistent performance

Reviewer: WDC Team

Full specification

Date Introduced n/a Maximum Format Size APS-C
Diagonal Angle of View 87-9 Maximum Aperture f/3.5-6.3
Minimum Aperture f/22 Lens Construction 15/13, 2 SLD, 2 Asph
Minimum Focus 45cm Focus Method M, AF
Filter Thread 62mm Weight 405g
Dimensions 70 x 78.1mm Lens Mount Can, Nik, Pen, Sig, Sony
Other Lens hood included

Manufacturer Website: http://www.sigma-imaging-uk.com

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