Fotografické koncepce

Hloubka ostrosti

Oblíbené portréty nebo zátiší jsou typickými příklady snímků, na nichž je neostrým pozadím dosaženo zvýraznění objektu. V závislosti na vzdálenosti od fotoaparátu jsou předměty ostré a neostré. To se nazývá „malá hloubka ostrosti“ nebo„velká hloubka ostrosti“.

Hloubka pole udává ostrou oblast okolo objektu fotografie. Malá hloubka ostrosti znamená, že oblast zaostření okolo objektu je úzká, velká DOF znamená širokou oblast ostrosti.

Snímek s malou hloubkou ostrosti vyděluje objekt na neostrém pozadí, může být pořízen teleobjektivem nebo volbou nízké hodnoty clony. Snímek s velkou hloubkou ostrosti, který poskytuje všechny objekty stejně ostře, může být pořízen širokoúhlým objektivem nebo volbou vysoké hodnoty clony.

Co určuje efekt neostrosti?

DOF závisí na hodnotě clony

Čím je širší otvor clony (tedy nižší hodnota clony), tím se hloubka ostrosti DOF snižuje. Při stejné ohniskové vzdálenosti vede malá hodnota clony ke snímkům s nižší hloubkou ostrosti.

55 mm F5.7

55 mm F22

Malá hloubka ostrosti

Velká hloubka ostrosti

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Samsung EV-NX30ZZBGBCH, EV-NX30ZZBGBDE, EV-NX30ZZBGBHU manual DOF závisí na hodnotě clony, Co určuje efekt neostrosti?
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EV-NX30ZZBZBCZ, EV-NX30ZZBGBCZ, EV-NX30ZZBGBHU, EV-NX30ZZBGBDE, EV-NX30ZZBGBCH specifications

The Samsung EV-NX30ZZBGBDE, EV-NX30ZZBGBHU, EV-NX30ZZBZBDE, EV-NX30ZZBMBDE, and EV-NX30ZZBZBTR are part of Samsung's advanced camera series that combines cutting-edge technology with user-friendly features. These models offer an impressive array of specifications, catering to both amateur and professional photographers.

At the heart of the Samsung EV-NX30 series is the 20.3-megapixel APS-C sensor, which delivers outstanding image quality with remarkable detail and dynamic range. This large sensor format allows for enhanced low-light performance, making it ideal for shooting in challenging lighting conditions. Coupled with the DRIMe IV image processor, the cameras ensure fast image processing, allowing for quick shutter speeds and reduced lag time.

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The EV-NX30 models are equipped with advanced autofocus technology, with a hybrid autofocus system that combines phase detection and contrast detection. This ensures rapid and accurate focusing, even on moving subjects. The continuous shooting mode offers up to 9 frames per second, making it suitable for capturing fast-action sequences.

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