Camera.farClipPlane  

camera.farClipPlane = 100.0;

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
void Awake() {
camera.farClipPlane = 100.0F;
}
}

import UnityEngine
import System.Collections

class example(MonoBehaviour):

def Awake():
camera.farClipPlane = 100.0F