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title: "Physically Accurate Camera | VRayCamera"
canonical: "https://documentation.chaos.com/space/VRAYNUKE/110624999/Physically%20Accurate%20Camera%20%7C%20VRayCamera"
format: markdown
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## **Overview**

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## **Inputs**

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## **Basic Settings Tab**

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> Macro (ui-text-box)
> 
> The override FOV parameter changes the FOV of the perspective camera that is capturing the virtual Sphere when Fisheye auto-fit is enabled.  
> If Fish-eye auto fit is disabled, the FOV changes the distance to the virtual 100% reflective sphere.

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### **Example: Camera Types**

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### **Example: Camera Types Explained**

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## **Project3D Settings**

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## **Physical Tab**

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### **Common Camera Parameters**

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### **Basic Physical parameters**

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### Aperture F-number vs Shutter Speed vs ISO  
Cheat Sheet

- **F-number **determines the size of the opening in the camera lens. What the number refers to is the ratio between the aperture's focal length and the actual diameter of the aperture. A smaller F-number means a larger aperture. The larger the Aperture, the brighter the scene becomes but that also introduces more [Depth of field](#).
- **Shutter Speed** determines how long the lens stays open when taking the photo. The numbers refer to fractions of a second. The slower the Shutter Speed, the brighter the scene becomes but that also introduces [Motion Blur](#).
- **ISO** determines the camera's sensitivity to light in the scene. Lowering the ISO means that more light is needed to achieve good lighting. Increasing the ISO means that less light is needed to achieve good lighting. A day scene, lit with a [V-Ray Sun](https://docs-chaos.atlassian.net/wiki/spaces/VRAYNUKE/pages/110626608), for instance, looks best when captured with around 100 ISO.

![image](media://0346cf5c-83e7-4b4a-9c33-cecf874676db)

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### **Example: Depth of Field (DOF)**

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### **Example: Motion Blur (MB)**

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### **Example: Zoom Factor**

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### **Example: Exposure Control | F-Stop (f-number)**

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### **Example: Exposure Control | Shutter Speed**

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### **Example: Exposure Control | Film Speed (ISO)**

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### **Example: White Balance**

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### ** **  
**Example: Vignetting**

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## **Lens distortion**

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### ** **  
**Example: Distortion**

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## **Bokeh effects**

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## **Stereoscopy Tab**

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### **Example: Output Layout**

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## **Panoramic pole merging**

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