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Sigma 18-250mm f/3.5-6.3 DC Macro OS HSM
The new Sigma 18-250mm f/3.5-6.3 DC Macro OS HSM lens is the first lens to use Thermally Stable Composite (TSC), meaning that tighter construction using thinner and lighter materials can be achieved. Read more in the Sigma 18-250mm f/3.5-6.3 news story.
Sigma 18-250mm f/3.5-6.3 DC Macro OS HSM Performance
How to read our charts:
The blue column represents readings from the centre of the picture frame at the various apertures and the green is from the edges. Averaging them out gives the red weighted column.
Chromatic Aberration Charts:
How to read our charts:Chromatic aberration is the lens' inability to focus on the sensor or film all colours of visible light at the same point. Severe chromatic aberration gives a noticeable fringing or a halo effect around sharp edges within the picture. It can be cured in software.
Apochromatic lenses have special lens elements (aspheric, extra-low dispersion etc) to minimize the problem, hence they usually cost more.
For this review, the lens was tested on a Canon EOS 7D using Imatest.
The Sigma 18-250mm f/3.5-6.3 DC Macro OS HSM lens is available for pre-order from Harrison Cameras.
Sigma 18-250mm f/3.5-6.3 DC Macro OS HSM Photos of Equipment
Sigma 18-250mm f/3.5-6.3 DC Macro OS HSM Specifications
|Focal Length||18mm - 250mm|
|Angle of View||6.5° - 76.5°|
|Max Aperture||f/3.5 - f/6.3|
|35mm equivalent||No Data|
|Internal focusing||No Data|
|Box Contents||No Data|