SIGMA 16-28mm F2.8
DG DN | Contemporary
• Formule optique: 13 éléments en 11 groupes, avec 5 FLD et 4 lentilles asphérices
• Zoom interne
• Système de mise au point interne
• Compatible avec l’autofocus grande vitesse
• Moteur pas à pas
• Compatible avec la correction des aberrations optiques
• DMF en AF+ MF support
• Revêtement multicouche Super Multi-Layer
• Monture avec construction étanche à la poussière et aux éclaboussures
• Diaphragme arrondi à 9 lames
• Monture à baïonnette en laiton : haute précision et durable
• « Made in Japan », dans un esprit artisanal exemplaire
| Ligne | Contemporary |
|---|---|
| Formule optique | 11 groups, 16 elements (5 FLD and 4 aspherical elements) |
| Lens Type | Standard |
| Sensor Size | Full Frame |
| Angle de vue | 107°–75.4° |
| Diaphragme | 9 (rounded diaphragm) |
| Ouverture minimale | F22 |
| Distance minimale de mise au point | 25cm |
| Rapport de reproduction maximal | 1:5.6 |
| Poids (gramme) | 450 gram |
| Diamètre de filtre | 72mm |
| Edition number | 22 |
LENS CONSTRUCTION
GEOMETRICAL MTF Chart
GEOMETRICAL MTF Chart
DIFFRACTION MTF CHART
DIFFRACTION MTF CHART
Inner Zoom
The lens incorporates an inner zoom. With their unchanging barrel length, these lenses also enhance balance and stability for the photographer. Furthermore, since the front of the lens does not rotate, polarizing filters can be used with extra convenience.
Inner focus system
To increase stability, this lens configuration uses movable internal lens elements that adjust focus without changing the length of the lens barrel.
Stepping Motor
The lens is capable of smooth, quiet and high-speed AF made possible by a stepping motor, as well as supports Face/Eye Detection AF and video AF.
Compatible with Lens Aberration Correction
Matching the optical characteristics of the lens, this function performs in-camera corrections of peripheral illumination, chromatic aberrations, distortion, and more, to further enhance image quality.
*Function available on supported cameras only. Available corrections or auto correction functionality may vary depending on the camera model.
*On cameras where lens aberration correction is controlled with 'ON' or 'OFF' in the camera menu, please set all aberration correction functions to 'ON'(AUTO).
Super Multi-Layer Coating
SIGMA's own Super Multi-Layer Coating suppresses flare and ghosting by preventing reflections with in the lens. All lenses in the current SIGMA range feature this original technology. In digital cameras, flare and ghosting may also be caused by reflections between the image sensor and lens surfaces. Here too, SIGMA's Super Multi-Layer Coating is highly ef fective, assuring images of outstanding contrast.
Focus Mode Switch
Using this swich, it is possible to switch the focus mode between AF and MF.
Mount with Dust and Splash Resistant Structure
The lens mount incorporates rubber sealing to protect the mount from dust and water drops.
Lens construction: 16 elements in 11 groups, with 5 FLD and 4 aspherical lens elements
Compatible with high-speed autofocus
Compatible with front filter (Φ72mm)
Support for DMF and AF+MF
Petal-type lens hood(LH756-01)
Compatible with SIGMA USB DOCK UD-11 (sold separately; L-Mount only)
Designed to minimize flare and ghosting
Every single lens is evaluated with SIGMA’s proprietary MTF measuring system
9-blade rounded diaphragm
High-precision, durable brass bayonet mount
Compatible accessories
