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Tamron 70-180 mm f/2.8 G2 : idéal pour les portraits en extérieur

, Tamron 70-180 mm f/2.8 G2 : idéal pour les portraits en extérieur

Je suis un grand fan des objectifs Tamron depuis un moment maintenant. Alors que je n’ai jamais réellement essayé la version Tamron 70-180 mm f/2.8 G1. J’avais très envie d’essayer la deuxième génération de cet objectif. J’ai actuellement le 70-300 mm et le 28-75 mm. Ainsi, le Tamron 70-180 mm f/2,8 G2 était un excellent objectif de milieu de gamme pour photographier des portraits et autres en dehors du studio.

Le 70-180 mm G2 f/2.8 de Tamron est le plus petit objectif télé-zoom et se glisse facilement dans votre main et dans le sac de votre appareil photo. F/2,8 ultra rapide sur toute la plage de zoom, capturant tout, de l’action aux portraits en passant par la macro. Grâce à la compensation des vibrations et au mécanisme de moteur linéaire VXD, chaque prise de vue est stabilisée et parfaitement concentrée.

Tamron-70-180-mm-f28-G2-ideal-pour-les-portraits

Remarque : Tamron a envoyé le 70-180 mm G2 kit à revoir et à retourner. Il s’agit cependant d’un examen totalement indépendant. Toutes nos réflexions sur cet objectif sont les nôtres.

Tia et Butterfly - capturés avec Tamron 70-180mm G2 - f/2.8 - 140mm
Tia et Butterfly – capturés avec Tamron 70-180 mm G2 – f/2,8 – 140 mm

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, Tamron 70-180 mm f/2.8 G2 : idéal pour les portraits en extérieur, Tamron 70-180 mm f/2.8 G2 : idéal pour les portraits en extérieur

Avantages

  • Petit et compact et relativement léger
  • Même diamètre de 67 mm donc mes filtres s’adaptent tous
  • F/2,8 sur tout le zoom, contrairement à d’autres qui s’étendront jusqu’à f/5,6 ou 6,3 en plein zoom
  • Mise au point automatique rapide
  • La fonction zoom était très fluide
  • J’adore la fonction de verrouillage, elle manque avec la version 70-300 mm

Les inconvénients

  • J’ai dû retourner l’unité d’examen. Honnêtement, il n’y a rien que je n’aime pas vraiment dans cet objectif.

Tamron 70-180mm f/2.8 G2 — Spécifications techniques

, Tamron 70-180 mm f/2.8 G2 : idéal pour les portraits en extérieur

Toutes les spécifications techniques proviennent du site Web de Tamron.

  • Modèle:A065
  • Distance focale : 70-180 mm
  • Ouverture maximale : f/2,8
  • Angle de vue : (diagonale) 34°21′- 13°42′ (pour le format sans miroir plein format)
  • Construction optique : 20 éléments en 15 groupes
  • Distance minimale de l’objet : 0,3 m (11,8 pouces) (LARGE) / 0,85 m (33,5 pouces) (TÉLÉ)
  • Grossissement maximum : rapport 1:2,6 (LARGE) / 1:4,7 (TÉLÉ)
  • Taille du filtre : φ67 mm
  • Diamètre maximum : φ83 mm
  • Longueur : 156,5 mm (6,2 pouces)
  • Poids : 855 g (30,2 oz)
  • Lames d’ouverture : 9 (diaphragme circulaire)
  • Ouverture minimale : f/22
  • Accessoire standard : pare-soleil en forme de fleur, capuchons d’objectif
  • Monture : Sony E-mount

Tamron 70-180mm f/2.8 G2 — Ergonomie et qualité de fabrication

Belle fonction de zoom fluide, excellent autofocus, belles couleurs et mise au point nette. Superbe bokeh et compression également. J’ai adoré l’utiliser pour des portraits d’animaux à l’extérieur. Comme il n’est vraiment pas plus grand que le 70-300 mm, je l’ai trouvé facile à utiliser. Le fait qu’il conserve l’ouverture f/2,8 à toutes les longueurs de zoom est un gros bonus. Il semblait solide et la prise en main est bonne. La bague de zoom bougeait bien, ni collante ni raide.

Tamron 70-180 mm f/2,8 G2 — Sur le terrain

Cet objectif est idéal à utiliser, qu’il s’agisse de capturer des insectes, des fleurs, des personnes ou des paysages. La couleur est superbe et je n’ai trouvé pratiquement aucun vignettage sur les bords. Même dans des conditions d’éclairage moins qu’idéales, il a très bien géré tout.

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, Tamron 70-180 mm f/2.8 G2 : idéal pour les portraits en extérieur, Tamron 70-180 mm f/2.8 G2 : idéal pour les portraits en extérieur

Tamron 70-180 mm f/2.8 G2 – Performances de mise au point automatique

L’autofocus est rapide, silencieux et précis. En utilisant le zoom 180 mm et la distance de mise au point minimale, je pourrais l’utiliser comme un excellent objectif macro avec un bokeh doux et crémeux. Assez rapide pour les abeilles et les papillons, ainsi que pour les petits enfants et les chiens du jardin. Même si je ne suis pas un photographe sportif, je pense que ce serait également excellent pour cela.

On retrouve sur cette génération du Tamron 70-180mm une prise USB-C le rendant compatible avec l’utilitaire d’objectif Tamron. Cependant, je ne l’ai pas essayé moi-même. Apparemment, la fonction vous permet de passer de non linéaire à linéaire et également de définir la rotation nécessaire de la distance de mise au point minimale à l’infini par incréments de 90° de 90° à 360°. Si vous le souhaitez, vous pouvez également modifier le sens de rotation de la bague de mise au point.

Il n’y a pas de commutateur AF/MF mais le commutateur et les boutons personnalisés vous permettent de programmer trois fonctions différentes à la fois, c’est-à-dire : Commutateur AF/MF, mise au point prédéfinie et limiteur de mise au point. J’aime aussi la fonction de verrouillage à 70 mm, qui empêche l’objectif de se desserrer et de bouger lorsqu’il n’est pas utilisé. Le pare-soleil peut également être monté à l’envers pour le transport.

Tamron 70-180mm f/2.8 G2 — Qualité d’image et caractéristiques

, Tamron 70-180 mm f/2.8 G2 : idéal pour les portraits en extérieur

Contrôle de la distorsion et vignettage

Je n’ai trouvé pratiquement aucun vignettage et aucune véritable distorsion. Le Tamron 70-180mm 2.8 G2 dispose d’un profil intégré pour corriger le CA latéral qui est automatiquement appliqué dans Lightroom/CameraRaw et ne peut pas y être désactivé.

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, Tamron 70-180 mm f/2.8 G2 : idéal pour les portraits en extérieur, Tamron 70-180 mm f/2.8 G2 : idéal pour les portraits en extérieur

Aberrations chromatiques, reflets et images fantômes

Même en prenant des photos au soleil, j’ai constaté qu’il y avait un minimum d’aberrations chromatiques, de reflets ou d’images fantômes dans les images. Jolis reflets doux et bokeh. Par contre il n’y a pas eu de véritable sursaut d’étoile non plus, mais je ne l’ai pas essayé à f/16 ou plus. J’ai utilisé le pare-soleil, donc peut-être qu’il peut y avoir des reflets ou des images fantômes lors de la prise de vue directement au soleil sans le pare-soleil.

, Tamron 70-180 mm f/2.8 G2 : idéal pour les portraits en extérieur
Pas de vignettage, d’éblouissement solaire ou d’images fantômes

Acuité

J’ai trouvé que même la netteté recadrée ou zoomée était formidable, avec de grands détails sans aucun artefact. À chaque extrémité de la fonction télé, j’ai trouvé que la netteté était formidable, de 70 mm à 180 mm. La distance focale minimale aux deux extrémités est également assez bonne. Cela m’a permis de capturer des images macro de sujets légèrement plus éloignés, que je ne pouvais pas obtenir avec mon objectif macro 90 mm.

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, Tamron 70-180 mm f/2.8 G2 : idéal pour les portraits en extérieur, Tamron 70-180 mm f/2.8 G2 : idéal pour les portraits en extérieur

Bokeh

Le bokeh est doux et crémeux, sans artefacts gênants, mais il n’a pas l’effet bokeh circulaire de, par exemple, mon objectif 50 mm. Personnellement, j’aime le bokeh et la compression lorsque j’utilise le zoom 180 mm sur des sujets un peu plus éloignés. Fait aussi de superbes fleurs et portraits.

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, Tamron 70-180 mm f/2.8 G2 : idéal pour les portraits en extérieur, Tamron 70-180 mm f/2.8 G2 : idéal pour les portraits en extérieur

Rendu des couleurs

J’ai trouvé le rendu des couleurs de cet objectif précis, sans aucune dominante de couleur.

Superbe rendu des couleurs avec des feuilles d'érable et un fond vert
Superbe rendu des couleurs avec des feuilles d’érable et un fond vert

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, Tamron 70-180 mm f/2.8 G2 : idéal pour les portraits en extérieur, Tamron 70-180 mm f/2.8 G2 : idéal pour les portraits en extérieur

Tamron 70-180 mm f/2.8 G2 – Réflexions finales

En sortie de studio, je pense que c’est un excellent objectif pour portrait. Le f/2,8 et le télézoom supplémentaire sont parfaits pour la compression de l’arrière-plan, faisant ressortir votre sujet. Je ne sais pas exactement à quel point cela serait efficace dans les sports d’action de haut niveau, mais pour l’action de niveau faible à intermédiaire, cela a très bien fonctionné. Si vous aimez photographier des animaux domestiques ou des enfants au parc, des portraits, etc., ce serait un objectif génial.