Sigma 18-250 mm f/3.5-6.3 DC OS HSM
11. Summary
- very universal focal lengths range,
- very good image quality in the frame centre at all focal lengths,
- good image quality on the edge of the frame in the 18-50 mm range,
- quite well corrected coma,
- slight astigmatism,
- distortion noticeably lower than that of its rivals,
- good quality of anti-reflection coatings,
- silent and relatively efficient autofocus.
Cons:
- weak image quality on the edge of the frame at 120-250 mm focal lengths,
- high chromatic aberration at the maximum focal length,
- weak performance against bright light.
The Sigma 18–250 mm f/3.5–6.3 DC OS HSM is a lens aimed at amateur photographers who, having a reflex camera, want to own one universal lens, which will be able to serve many purposes during a trip or on holiday. Looking at the performance of the tested lens it seems that it won’t disappoint such users. Of course it is hardly a flawless optical instrument but nobody can expect as much from a lens with such a zoom multiple. On the other hand the device boasts several indisputable advantages like a splendid image quality in the frame centre, stabilization and an HSM motor as well. Such a combination can be met only in the Nikkor 18-200 mm VR but that instrument features a narrower focal range.
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Sample shots
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Camera: Canon 50D Parameters: 147 mm, f/6.3, exp. 1/200 s, ISO 400 File: JPEG, 4752×3168 pix, 4.09 MB |
Camera: Canon 50D Parameters: 80 mm, f/5.6, exp. 1/200 s, ISO 400 File: JPEG, 4752×3168 pix, 4.3 MB |
Camera: Canon 50D Parameters: 50 mm, f/5.6, exp. 1/200 s, ISO 400 File: JPEG, 4752×3168 pix, 4.37 MB |
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Camera: Canon 50D Parameters: 43 mm, f/5.6, exp. 1/200 s, ISO 400 File: JPEG, 4752×3168 pix, 3.94 MB |
Camera: Canon 50D Parameters: 28 mm, f/5.6, exp. 1/200 s, ISO 400 File: JPEG, 4752×3168 pix, 3.64 MB |
Camera: Canon 50D Parameters: 31 mm, f/4.0, exp. 1/200 s, ISO 200 File: JPEG, 4752×3168 pix, 3.73 MB |
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Camera: Canon 50D Parameters: 95 mm, f/5.6, exp. 1/200 s, ISO 400 File: JPEG, 4752×3168 pix, 4.51 MB |
Camera: Canon 50D Parameters: 43 mm, f/4.5, exp. 1/200 s, ISO 200 File: JPEG, 4752×3168 pix, 4.04 MB |
Camera: Canon 50D Parameters: 35 mm, f/5.6, exp. 1/200 s, ISO 400 File: JPEG, 4752×3168 pix, 3.49 MB |
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Camera: Canon 50D Parameters: 18 mm, f/5.6, exp. 1/200 s, ISO 400 File: JPEG, 4752×3168 pix, 3.24 MB |
Camera: Canon 50D Parameters: 120 mm, f/5.6, exp. 1/200 s, ISO 400 File: JPEG, 4752×3168 pix, 3.78 MB |
Camera: Canon 50D Parameters: 250 mm, f/8.0, exp. 1/200 s, ISO 200 File: JPEG, 4752×3168 pix, 3.35 MB |
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Camera: Canon 50D Parameters: 18 mm, f/3.5, exp. 1/2500 s, ISO 100 File: JPEG, 4752×3168 pix, 4.52 MB |
Camera: Canon 50D Parameters: 31 mm, f/8.0, exp. 1/800 s, ISO 100 File: JPEG, 4752×3168 pix, 4.35 MB |
Camera: Canon 50D Parameters: 63 mm, f/7.1, exp. 1/1000 s, ISO 100 File: JPEG, 4752×3168 pix, 4.21 MB |
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Camera: Canon 50D Parameters: 147 mm, f/6.3, exp. 1/2000 s, ISO 100 File: JPEG, 4752×3168 pix, 3.7 MB |
Camera: Canon 50D Parameters: 250 mm, f/6.3, exp. 1/2000 s, ISO 100 File: JPEG, 4752×3168 pix, 3.82 MB |
Camera: Canon 50D Parameters: 18 mm, f/3.5, exp. 1/2000 s, ISO 100 File: JPEG, 4752×3168 pix, 6.16 MB |
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Camera: Canon 50D Parameters: 35 mm, f/8.0, exp. 1/400 s, ISO 100 File: JPEG, 4752×3168 pix, 6.64 MB |
Camera: Canon 50D Parameters: 80 mm, f/5.6, exp. 1/1000 s, ISO 100 File: JPEG, 4752×3168 pix, 5.64 MB |
Camera: Canon 50D Parameters: 178 mm, f/6.3, exp. 1/1000 s, ISO 200 File: JPEG, 4752×3168 pix, 5.37 MB |
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Camera: Canon 50D Parameters: 250 mm, f/6.3, exp. 1/640 s, ISO 200 File: JPEG, 4752×3168 pix, 5.58 MB |
Camera: Canon 50D Parameters: 18 mm, f/5.0, exp. 1/640 s, ISO 100 File: JPEG, 4752×3168 pix, 4.11 MB |
Camera: Canon 50D Parameters: 28 mm, f/4.0, exp. 1/2000 s, ISO 100 File: JPEG, 4752×3168 pix, 3.79 MB |
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Camera: Canon 50D Parameters: 50 mm, f/5.0, exp. 1/1000 s, ISO 100 File: JPEG, 4752×3168 pix, 4.01 MB |
Camera: Canon 50D Parameters: 80 mm, f/5.6, exp. 1/200 s, ISO 400 File: JPEG, 4752×3168 pix, 3.69 MB |
Camera: Canon 50D Parameters: 31 mm, f/5.6, exp. 1/200 s, ISO 400 File: JPEG, 4752×3168 pix, 4.21 MB |
