Fotografijos koncepcija

Diafragma

Diafragmos vertė yra vienas iš trijų veiksnių, apsprendžiančių ekspoziciją. Diafragmos angelę dengia plonos, metalinės plokštelės, kurioms atsivėrus šviesa patenka į fotoaparato vidų. Diafragmos dydis taip pat susijęs su šviesos kiekiu: didesnė diafragma praleis daugiau šviesos, o mažesnė - mažiau.

Diafragmos dydžiai

Mažiausia diafragma

Vidutinė diafragma

Didžiausia diafragma

 

 

 

Diafragmos dydį nurodo reikšmė, žinoma kaip„F“ skaičius.„F“ skaičius nurodo židinio nuotolį padalintą iš objektyvo diametro. Pavyzdžiui, jei 50 mm objektyvo židinio nuotolio„F“ skaičius yra F2, diafragmos diametras yra 25 mm. (50 mm/25 mm = F2) Kuo mažesnis„F“ skaičius, tuo didesnė diafragma.

Diafragmos atsivėrimas vadinamas ekspozicijos verte (EV). Padidinus ekspozicijos vertę (+1 EV) gaunamos šviesos kiekis padvigubėja. Sumažinus ekspozicijos vertę (-1 EV) gaunamos šviesos kiekis sumažėja perpus. Galite naudotis ir ekspozicijos kompensavimo funkcija, kad priderintumėte gaunamos šviesos kiekį padalindami ekspozicijos vertes į 1/2, 1/3 EV ir panašiai.

+1 EV

 

-1 EV

 

 

 

F1.4

F2

F2.8

F4

F5.6

F8

 

 

Išlaikymo vertė žingsniai

 

 

Šiek tiek atidaryta diafragma

Plačiai atidaryta diafragma

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Samsung EV-NX3000BOHLV, EV-NX3000BOIDE, EV-NX3000BOILV manual Diafragma
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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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