Concepts de photographie

Vitesse d’obturation

La vitesse d’obturation est définie par la durée nécessaire à l’ouverture et à la fermeture de l’obturateur. Dans le cadre de la luminosité d’une photo, la vitesse d’obturation constitue un facteur important car elle contrôle la quantité de lumière qui passe à travers l’ouverture avant d’atteindre le capteur d’images.

Généralement, la vitesse d’obturation est réglable manuellement. La mesure de la vitesse d’obturation est connue sous le nom de « Valeur d’exposition » (EV), qui se caractérise par des intervalles de 1 s, 1/2 s, 1/4 s, 1/8 s, 1/15 s, 1/1 000 s, 1/2 000 s, et ainsi de suite.

 

 

+1 EV

 

 

 

Exposition

 

 

 

 

 

 

 

 

-1 EV

 

 

1 s

1/2 s

1/4 s

1/8 s

1/15 s

1/30 s

 

 

Vitesse d’obturation

 

 

Par conséquent, plus la vitesse d’obturation est élevée, moins la lumière pénètrera et plus la vitesse d’obturation est faible, plus la lumière pénètrera.

Comme présenté sur la photo ci-dessous, une vitesse d’obturation lente laisse plus de temps à la lumière pour pénétrer, la photo devient donc plus claire. Par ailleurs, une vitesse d’obturation rapide accorde moins de temps à la lumière pour pénétrer. La photo devient plus sombre et immobilise un sujet en mouvement plus facilement.

0,8 s

0,004 s

16

Page 17
Image 17
Samsung EV-NX210ZBSBFR manual Vitesse d’obturation

EV-NX210ZBSBFR specifications

The Samsung EV-NX210ZBSBFR is a compact camera that stands out in the digital photography landscape, blending advanced features with user-friendly design. This versatile device is perfect for both enthusiasts and professionals looking for high-quality images without the bulk of a DSLR.

At the core of the EV-NX210ZBSBFR is its impressive 20.3-megapixel APS-C sensor. This large sensor captures more light and detail, resulting in stunningly clear and vibrant images. Whether shooting in bright daylight or low-light conditions, users will appreciate the dynamic range and clarity offered by this camera.

One of the standout features of the EV-NX210ZBSBFR is its built-in Wi-Fi connectivity. This function allows photographers to share their images wirelessly, making it easy to upload photos to social media or send them to friends and family. The camera can also connect to smartphones and tablets, enabling remote shooting and the ability to use mobile devices as a monitor.

The NX210 features a 3-inch AMOLED display that provides excellent visibility, even in bright sunlight. Its intuitive interface promotes easy navigation through the camera's settings, making it accessible for everyone. The tilting display allows for creative shooting angles, ensuring that photographers can capture the perfect shot.

In terms of performance, the EV-NX210ZBSBFR boasts fast autofocus capabilities, ensuring that subjects are in sharp focus even during quick movements. This feature is particularly beneficial for capturing action shots or spontaneous moments. Additionally, the camera supports full HD video recording at 1080p, allowing users to create high-quality video content alongside still images.

Samsung has also equipped the NX210 with various filters and scene modes, offering photographers a multitude of creative options. From vintage looks to dramatic contrasts, these built-in effects empower users to experiment with their photography without the need for post-processing.

With a compact design and lightweight body, the EV-NX210ZBSBFR is an ideal companion for travel and everyday photography. Users will appreciate the camera's ergonomics, ensuring comfort during extended shooting sessions. Coupled with its extensive lens compatibility through the Samsung NX mount, this camera offers endless possibilities for creativity.

In summary, the Samsung EV-NX210ZBSBFR is a powerful yet compact camera that combines advanced photography features with user-friendly technology. Its combination of a high-resolution sensor, Wi-Fi connectivity, and a variety of creative shooting options makes it a solid choice for both budding photographers and seasoned professionals alike.