Begreber inden for fotografering

Størrelsen af blænderen repræsenteres af en værdi, der er kendt som "F-nummeret". F-nummeret repræsenterer brændvidden delt med objektivets diameter. Hvis et objektiv med f.eks. en 50 mm brændvidde har et f-nummer på F2, er blænderens diameter 25 mm. (50 mm/

25 mm=F2) Jo mindre f-nummeret er, jo større vil blænderen være.

Åbningen i blænderen er beskrevet som eksponeringsværdien (EV). Hvis man øger eksponeringsværdien (med + 1 EV), betyder dette, at mængden af lys fordobles. Hvis eksponeringsværdien reduceres (med - 1 EV), halveres lysmængden. Du kan også bruge funktionen for eksponeringskompensationen til at finjustere mængden af lys ved at dele eksponeringsværdierne op i 1/2, 1/3 EV osv.

+1 EV

 

-1 EV

 

 

 

F1.4

F2

F2.8

F4

F5.6

F8

 

 

Trin af eksponeringsværdier

 

 

Blændeværdi og dybdeskarphed

Du kan gøre et billedes baggrund sløret eller skarpt ved at ændre på blænderen. Dette er tæt forbundet til dybdeskarpheden (DOF), der kan udtrykkes som værende enten lille eller stor.

Et billede med stor DOF

Et billede med lille DOF

Blænderhuset indeholder adskillige blade. Disse blade bevæger sig sammen og kontrollerer den mængde af lys, der kommer gennem blænderens midte. Antallet af blade har også effekt på lysets former, når der tages billeder om natten. Hvis blænderen har et lige antal blade, deles lyset op i et tilsvarende antal dele. Hvis antallet af blade er ulige, vil antallet af dele være dobbelt så stort som antallet af blade.

En blænder med 8 blade deler eksempelvis lyset op i 8 dele, og en blænder med 7 blade giver 14 dele.

7 blade

8 blade

15

Page 15 Page 17
Page 16
Image 16
Samsung EV-NX1000BABDK, EV-NX1000BFWDK, EV-NX1000BABSE, EV-NX1000BFWSE manual Blændeværdi og dybdeskarphed
Page 15 Page 17

EV-NX1000BABSE, EV-NX1000BFWDK, EV-NX1000BFWSE, EV-NX1000BABDK specifications

The Samsung EV-NX1000 is a versatile and compact digital camera that blends cutting-edge technology with user-friendly features, making it an excellent choice for photography enthusiasts of all levels. It is available in various stylish designs, including the EV-NX1000BABDK, EV-NX1000BFWSE, EV-NX1000BFWDK, and EV-NX1000BABSE, each offering unique aesthetics while maintaining the same core functionalities.

One of the standout features of the EV-NX1000 series is its 20.3-megapixel APS-C CMOS sensor, which provides stunning image clarity and sharpness. This larger sensor allows for better low-light performance compared to typical compact cameras, enabling users to capture high-quality images even in challenging lighting conditions. The sensor works in conjunction with the impressive DRIMe IV image processor, which enhances color accuracy and reduces noise, delivering vibrant images with excellent detail.

The NX1000 is equipped with a 3-inch tilt and swivel LCD screen, allowing users to compose shots from various angles easily. The display is also touch-sensitive, providing a more interactive shooting experience. Additionally, the camera features a fast autofocus system, ensuring quick and accurate focus on subjects, which is crucial for capturing fleeting moments.

Another significant characteristic of the EV-NX1000 series is its built-in Wi-Fi connectivity. This feature allows users to effortlessly share images and videos to their smartphones and other devices, making it simple to upload photos directly to social media platforms. Moreover, the camera supports remote shooting via a smartphone app, providing added convenience for self-portraits or group photos.

The NX1000 also offers a range of versatile shooting modes, including Smart Auto, which automatically selects the optimal settings for the environment, as well as various artistic filters and scene modes that encourage creativity. Furthermore, the camera is compatible with interchangeable lenses, allowing users to expand their photographic capabilities according to their needs.

With its elegant designs, advanced features, and user-friendly technologies, the Samsung EV-NX1000 series is a commendable camera suited for both novice and experienced photographers. Its combination of portability, performance, and connectivity options makes it an appealing option for those looking to elevate their photography skills while enjoying the convenience of modern technology.
Top Page Image Contents