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Sigma 28-105mm
F2.8-4 Aspherical AutoFocus Wide Angle Telephoto
Zoom Lens
| This f2.8 lens sets a standard for all zooms. Its unusually large maximum aperture is made possible by an extra-wide aspherical lens to provide higher optical performance in a number of ways < including effective anti-flare features and crisp-to-the-edge images. An internal focusing mechanism allows the front of the lens to remain stationary and to easily accommodate specialty filters, such as polarizing filters. Sigma's original 4-group zoom mechanism keeps size and weight to a minimum while fully correcting astigmatism and distortion. Its wide range and convenience make it perfect for snapshots and great travel photos. |
| Construction |
11 groups /12 elements |
| Angle of view |
75.4°-23.3° |
| F stop range |
22-32 |
| Closest Focusing Distance |
50cm / 19.7" |
| Maximum Magnification |
1:5.5 |
| Filter Size |
72mm |
| Dimensions (Length x Diameter) |
77 x 79.5mm / 3.0 x 3.1"
Full Extended Length 114.5mm / 4.5" |
| Weight |
405g / 14.3 oz. |
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For Canon
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For Nikon
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For Pentax
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For Konica Minolta
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