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iPhone X vs iPhone 8 Plus: L'appareil photo vaut-il l'argent?

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L'iPhone 8 Plus a un appareil photo génial, mais son plus grand rival peut être un membre de sa propre famille.

Le 10ème anniversaire d'Apple iPhone X propose un nouveau design et des fonctionnalités supplémentaires, y compris des appareils photo légèrement différents. Alors, à quel point les caméras de l'iPhone X sont-elles meilleures et valent-elles au moins 200 $, 200 £ ou 550 $ de plus que les 8 Plus?

Nous avons pris les deux téléphones en tournée dans le quartier chinois de San Francisco pour le découvrir.

Qu'est-ce qui est différent?

Le X et le 8 Plus partagent tous deux un appareil photo à double objectif de 12 mégapixels, avec des spécifications légèrement différentes. Voici la répartition:

Lentille large est f / 1.8 sur les deux, avec stabilisation d'image optique (OIS)
Le téléobjectif est légèrement plus rapide sur le X (f / 2.4 vs f / 2.8)
Téléobjectif a OIS sur le X seulement

Comme pour la caméra frontale, les deux ont la même résolution à 7 mégapixels, mais sur le X, cela fait partie d'une plus grande configuration appelée la caméra TrueDepth. Cela inclut une caméra infrarouge, des capteurs et des projecteurs de lumière capables de percevoir la profondeur.

En cours de lecture:
                    Regarde ça:
                
                iPhone X vs iPhone 8 Plus: Combien vaut mieux l'appareil photo?
            

3:10
            

En plus d'alimenter FaceID, la fonction de déverrouillage du visage d'Apple, cette caméra peut produire l'effet de mode portrait pour les selfies.

Caractéristiques techniques de l'appareil photo pour iPhone X et iPhone 8 Plus

iPhone 8 Plus
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            iPhone X
                                                                    
                                                                                                                                        
                                                                            Résolution grand angle
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            12 mégapixels
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            12 mégapixels
                                                                    
                                                                                                                                        
                                                                            Résolution téléobjectif
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            12 mégapixels
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            12 mégapixels
                                                                    
                                                                                                                                        
                                                                            Ouverture grand angle
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            f / 1,8
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            f / 1,8
                                                                    
                                                                                                                                        
                                                                            Ouverture téléobjectif
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            f / 2,8
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            f / 2.4
                                                                    
                                                                                                                                        
                                                                            Stabilisation d'image optique
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            Grand angle seulement
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            Les deux lentilles
                                                                    
                                                                                                                                        
                                                                            Stabilisation vidéo cinématique
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            1080p, 720p
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            1080p, 720p
                                                                    
                                                                                                                                        
                                                                            Zoom optique
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            2x
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            2x
                                                                    
                                                                                                                                        
                                                                            Zoom numérique
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            10x
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            10x
                                                                    
                                                                                                                                        
                                                                            Vidéo fps 4K
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            24, 30, 60
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            24, 30, 60
                                                                    
                                                                                                                                        
                                                                            Vidéo fps 1080p
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            30, 60, 120, 240
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            30, 60, 120, 240
                                                                    
                                                                                                                                        
                                                                            Formats vidéo
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            H.264, HEVC
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            H.264, HEVC
                                                                    
                                                                                                                                        
                                                                            Résolution de la caméra avant
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            7 mégapixels
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            7 mégapixels
                                                                    
                                                                                                                                        
                                                                            Ouverture de la caméra avant
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            f / 2,2
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            f / 2,2
                                                                    
                                                                                                                                        
                                                                            Type de caméra avant
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            TrueDepth
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            FaceTime HD
                                                                    
                                                                                                                                        
                                                                            Prix ​​64GB
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            799 $, 799 £, 1 229 $ CAN
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            999 $, 999 £, 1 579 $ AU
                                                                    
                                                                                                                                        
                                                                            Prix ​​256GB
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            949 $, 949 £, 1 479 $ AU
                                                                    
                                                                                                                                                                            
                                                                                    
                                                                                    
                                                                                        
                                                                            1 149 $, 1 149 £, 1 829 $ AU
                                                                    
                                                                                                                                        
        

Réflexions générales

Pour tester les téléphones côte à côte, nous les avons montés sur une plate-forme afin que les lentilles de la caméra s'alignent le plus possible. Parce que l'orientation des caméras (verticale sur le X et horizontale sur le 8 Plus), il est difficile de les amener à produire un champ de vision identique.

Lors de la reconstitution de cette comparaison, certains affichages ont rendu certaines photos de l'iPhone X plus sombres et vibrantes que celles du 8 Plus. Globalement, dans la plupart des situations, les téléphones produisent des images très similaires en termes de couleur, de détail et de gamme dynamique.

L'écran OLED du X rend les images plus lumineuses et plus éclatantes que celles du 8 Plus lorsque vous regardez des photos sur les téléphones.

Portraits

Les portraits pris sur les deux téléphones semblent très bons avec un grossissement réduit. Quand vous les regardez à un grossissement accru, les détails fins tels que les cheveux semblent plus nets sur le X.

Un portrait tiré sur l'iPhone X (à gauche) et l'iPhone 8 Plus (à droite). L'encart est une culture à 100% des cheveux, montrant comment le X est plus nette.

                                                    Vanessa Hand Orellana / Camaraderielimited
                                                

Le mode portrait qui crée l'arrière-plan flou ou l'effet bokeh est similaire sur les deux téléphones. Mais le X a l'avantage parce que l'image est plus nette.

X marque le (selfie) spot

Le mode portrait avec l'appareil photo frontal sur l'iPhone X est très amusant. Vous y accédez de la même manière que la caméra arrière: passez en mode portrait, sélectionnez l'option d'éclairage souhaitée, positionnez-vous dans le cadre de façon à ce que l'appareil détecte votre visage, puis détachez-vous.

Il ne semble pas faire un aussi bon travail que la caméra arrière dans les cheveux flous, mais c'est bien d'avoir l'option par rapport à la caméra selfie régulière sur le 8 Plus. Il convient de noter que d'autres téléphones comme le Google Pixel 2 ont la capacité de produire le mode portrait avec le logiciel, sans avoir besoin d'une caméra de détection de profondeur comme sur le X.

Zoomer pour agrandir

différence entre les photos prises sur les téléobjectifs sur les X et 8 Plus dans la lumière du jour ou les situations bien éclairées.

Pour la vidéo, tirer n'importe quel type de suivi, de marche ou de tir avec l'objectif 2x est l'endroit où vous remarquerez le plus l'objectif stabilisé. Si vous gardez le téléphone relativement calme, vous ne remarquerez probablement pas beaucoup de différence.

OIS aide à faire une vidéo plus fluide et plus regardable – nous la voyons utile dans une situation où vous devez vous rapprocher d'un sujet, comme filmer un récital ou une performance scolaire.

Faible luminosité

Les photos en basse lumière prises sur l'objectif grand angle sont similaires. Les deux téléphones présentent des reflets dans les mêmes endroits si une source de lumière frappe la lentille de la bonne façon. Le 8 Plus souffle sur les zones lumineuses un peu plus que le X, comme la verrerie sur la barre dans l'exemple ci-dessous:

Pour les portraits en basse lumière, les téléphones montrent une différence beaucoup plus grande. L'exposition sur la photo du X est plus claire et plus uniforme à travers le sujet et l'arrière-plan, ce qui donne un aspect plus flatteur. En revanche, la même photo prise sur le 8 Plus a plus de bruit.

Les valeurs d'exposition pour le X sont f / 2,4, 1/30, ISO 500, tandis que le 8 Plus est f / 2,8, 1/60, ISO 1250.

Zoom faible luminosité

Il y a subtil différences lors de l'utilisation du téléobjectif pour les gros plans. Lorsque vous effectuez un zoom de 100 pour cent, le X apparaît plus net, en particulier dans les zones où il y a beaucoup de détails. Cela est logique étant donné l'OIS et l'ouverture plus large dans la deuxième lentille, ce qui signifie que l'obturateur peut rester ouvert plus longtemps pour laisser entrer plus de lumière.

Comme pour la vidéo, la différence de qualité lors de la commutation entre 1x et 2x est à peine perceptible lors du tournage d'un tir statique. L'OIS aide à faire un résultat plus regardable en filmant 2x sur le X en basse lumière. Mais il vaut la peine de dire qu'aucun des deux téléphones produit une image vidéo particulièrement agréable en basse lumière car il y a beaucoup de bruit.

Le flash n'est toujours pas superbe

Lors de l'utilisation du flash LED en mode portrait, les photos des deux téléphones ont tendance à produire des yeux rouges sur les sujets. Les deux images montrent beaucoup de bruit et même avec une synchronisation lente, vous pouvez certainement dire que ces photos ont été prises avec un flash.

Et le gagnant est …

Il n'y a pas un énorme saut dans la qualité image et vidéo entre le 8 Plus et le X. Mais le X a définitivement l'avantage sur le 8 Plus en basse lumière, et sur le selfie appareil photo si vous devez avoir l'effet du mode portrait.

Si vous prenez une décision d'achat basée uniquement sur les fonctions de l'appareil photo, il ne vaut pas la peine de dépenser au moins 200 $ de plus pour obtenir la stabilisation et un téléobjectif plus rapide sur le X. ça vaut le coup pour toi.

                    
    
        
        
                                                        
    

        
                    
                                
                    

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