The Sigma APO 120-400mm F4.5-5.6 DG is a telephoto zoom lens designed for use on full-frame and APS-C digital SLRs. It features three SLD (Special Low Dispersion) glass elements, a Hyper Sonic (HSM) focus motor with full-time manual focus, and Canon/Nikon versions also feature Sigma's OS Optical Stabilization system. Its focal range is ideal for sports and wildlife photography, and APS-C shooters will get even more reach - up to 600mm (equivalent).
Sigma 120-400mm f/4.5-5.6 AF APO DG HSM Lens
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- 120-400mm focal length
- 180-600mm equivalent focal length on APS-C cameras, 192-640mm equivalent focal length on Canon APS-C cameras
- F4.5-5.6 maximum aperture; F22-28 minimum
- Ring-type ultrasonic-type AF motor with full-time manual focusing
- Image stabilization, 4 stops claimed
- 77mm filters
- 1.50m/59.06" minimum focus
- Available in Canon EF, Sigma SA, Nikon F (FX) mounts
|Lens type||Zoom lens|
|Max Format size||35mm FF|
|Focal length||120–400 mm|
|Image stabilisation||Yes (4 stops claimed)|
|Lens mount||Canon EF, Sigma SA, Nikon F (FX)|
|Maximum aperture||F4.5 - F5.6|
|Minimum aperture||F22.0 - F28.0|
|Number of diaphragm blades||9|
|Special elements / coatings||3 SLD glass elements|
|Minimum focus||1.50 m (59.06″)|
|Motor type||Ring-type ultrasonic|
|Full time manual||Yes|
|Weight||1640 g (3.62 lb)|
|Diameter||92 mm (3.62″)|
|Length||203 mm (7.99″)|
|Zoom method||Rotary (extending)|
|Filter thread||77 mm|
focus calibration solution for Nikon & telephoto ?
Which lens calibration product would you suggest for calibrating teles (Sigma 120-400, Sigma 120-300, +TCs, Tamron 150-600, etc) for >50m distances on Nikon bodies (more specifically D7100, D300) Thank you
You can calibrate your lenses using "dot tune" http://www.youtube.com/watch?v=7zE50jCUPhM Continue Reading
It's an area where Google and a few hours reading would be a best start, since it's been widely discussed and debated. I personally find that for long lenses a few shots on a textured surface (grass, rock) focused on something like a vertical sign is best. The gadget oriented tuning (lens align, focal) work best too close, and I'm shooting telephotos at distance, and they tune easily. But for gadget stuff, I use Focal (software), and like it, and run each new lens through it at least once, often several times at different distances to see how the lens varies. But it's a subject with hugely varying opinions (up to and including "if you need to fine tune send it back to Nikon). Continue Reading
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