Fotografijos koncepcija

Užrakto greitis

Užrakto greitis reiškią laiką, reikalingą užrakto atidarymui ir uždarymui.

Jis valdo šviesos, patenkančios pro diafragmą, kiekį, prieš jai pasiekiant

vaizdo jutiklį.

 

 

 

 

 

Dažniausiai užrakto greitį galima reguliuoti rankiniu būdu. Užrakto greičio

matas žinomas kaip„ekspozicijos vertė“ (EV), kuri žymima invervalais: 1 s,

1/2 s, 1/4 s, 1/8 s, 1/15 s, 1/1 000 s, 1/2 000 s ir kt.

 

 

 

 

+1 EV

 

 

 

Ekspozicija

 

 

 

 

 

 

 

 

-1 EV

 

 

1 s

1/2 s

1/4 s

1/8 s

1/15 s

1/30 s

Užrakto greitis

Todėl kuo didesnis užrakto greitis, tuo mažiau šviesos bus įleista. Ir atvirkščiai, kuo mažesnis užrakto greitis, tuo daugiau šviesos bus įleista.

Žemiau esanti nuotrauka parodo, kad lėtas užrakto greitis suteikia daugiau laiko šviesai patekti į fotoaparatą. Judantiems objektais tai suteikia susiliejusio judesio efektą. Tačiau iš kitos pusės, didesnis užrakto greitis leidžia sutrumpinti šviesos įleidimo laiką, todėl nuotraukoje geriau fiksuojami judantys objektai.

0,8 s

0,004 s

17

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Samsung EV-NX3000BOIDE, EV-NX3000BOHLV, EV-NX3000BOILV manual Užrakto greitis, Vaizdo jutiklį
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EV-NX3000BOIDE, EV-NX3000BOILV, EV-NX3000BOHLV specifications

The Samsung EV-NX3000 series, comprising models EV-NX3000BOHLV, EV-NX3000BOILV, and EV-NX3000BOIDE, represents a thoughtful blend of innovative technologies and user-friendly features designed to enhance photography experiences for both amateurs and professionals. At the core of these cameras lies a 20.3-megapixel APS-C-sized sensor that captures stunningly detailed images with reduced noise, ensuring clear shots even in low-light environments.

One of the standout features of the NX3000 series is its Wi-Fi connectivity, which allows for seamless sharing of images and videos directly from the camera to smartphones, tablets, or social media. This wireless capability is further enhanced by NFC (Near Field Communication) technology, enabling quick pairing with compatible devices. Such features underscore the camera's focus on modern connectivity, appealing to those who wish to document their life experiences in real-time.

Another critical aspect is the Smart Mode, which offers a variety of pre-set options tailored for different shooting conditions. With modes like “Picture Wizard” and “Best Face”, users can effortlessly achieve optimal results without needing advanced photography skills. The camera's 3-inch tilt display is another highlight, providing versatility in composition, especially for creative angles or selfies.

The NX3000 series is equipped with a high-speed autofocus system that ensures fast and accurate focusing, making it easier to capture fleeting moments. This is further complemented by a burst shooting capability that allows users to take multiple shots in quick succession, ideal for action photography.

In addition to still photography, the EV-NX3000 models boast the ability to record full HD 1080p video, ensuring that all precious moments can be captured in motion. Users can explore various artistic effects using built-in filters, enhancing the creative aspect of video capture.

The camera's design is stylish and compact, making it easy to carry around. With various interchangeable lenses available, users can customize their shooting experience, expanding their creative horizons.

In summary, the Samsung EV-NX3000 series—comprising the EV-NX3000BOHLV, EV-NX3000BOILV, and EV-NX3000BOIDE—combines advanced imaging technology with modern connectivity and user-friendly features. The result is a versatile camera that caters to the needs of diverse photographers, capturing the essence of any moment with remarkable clarity and ease.
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