Concepts de photographie

Vitesse d’obturation

La vitesse d’obturation est définie par la durée nécessaire à l’ouverture et

àla 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

àla lumière pour pénétrer. La photo devient plus sombre et immobilise un sujet en mouvement plus facilement.

0,8 s

0,004 s

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Samsung EV-NX2000BFWCH, EV-NX2000BSBFR, EV-NX2000BPWFR, EV-NX2000BQWFR manual Vitesse d’obturation
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EV-NX2000BPWFR, EV-NX2000BSBFR, EV-NX2000BQWFR, EV-NX2000BFWCH specifications

The Samsung EV-NX2000 camera series comprises a set of advanced mirrorless interchangeable lens cameras designed for photography enthusiasts seeking high-quality imaging capabilities in a compact form. This series includes models such as the EV-NX2000BFWCH, EV-NX2000BQWFR, EV-NX2000BSBFR, and EV-NX2000BPWFR, each offering unique color options while maintaining similar core features that appeal to various users.

At the heart of the EV-NX2000 series is a powerful 20.3-megapixel APS-C sized CMOS sensor. This large sensor size contributes to excellent low-light performance, delivering sharp, vibrant images with minimal noise. Coupled with the sensor is a high-performance DRIMe IV image processor, which ensures swift image processing and enhances overall efficiency, enabling users to capture fast-moving subjects with ease.

The series is equipped with a versatile 3.7-inch AMOLED touch screen, which tilts and swivels for flexible shooting angles. This feature is particularly beneficial for composing shots from creative perspectives or for taking selfies. Users can easily navigate through menus, adjust settings, and view images with clarity and accuracy.

A standout characteristic of the NX2000 is its built-in Wi-Fi connectivity that facilitates seamless sharing and remote control capabilities. Users can link the camera to their smartphones or tablets through the Samsung SMART CAMERA app, allowing for instant sharing on social media and even remote shooting. This connectivity offers convenience for those who want to manage images directly from their mobile devices.

The series also offers Full HD video recording at up to 30 frames per second, ensuring smooth video capture. The camera supports various frame rates and resolutions, accommodating different shooting scenarios. Advanced video features, including the ability to utilize manual settings while recording, provide filmmakers with greater creative control.

Lens versatility is another key highlight of the EV-NX2000 series. The camera is compatible with a range of Samsung NX lenses, allowing users to find the right lens for any situation, from wide-angle landscapes to telephoto shots, enhancing the overall shooting experience.

In addition, the Samsung EV-NX2000 series features various shooting modes, including Smart Mode, which offers intelligent scene recognition and optimal settings for various conditions. Other features like 14 different filter effects give users the tools to add a personal touch to their photography.

In conclusion, the Samsung EV-NX2000 series combines high-resolution imaging, versatile connectivity, and user-friendly features, making it an excellent choice for both novice and experienced photographers looking for creativity and performance in a compact digital camera format. The options available in the series provide choices that reflect personal style without compromising on image quality.
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