   TCCR5A |= _BV(COM5B1); // connect OC5B pin (the internal OC5B register is LOW)
 
   // * the first compare match interrupt call is bogus.
-  firstcall5 = true;
+  firstcall = true;
   
   if (stretch != 0) {
     // number of ticks the last HSYNC before VSYNC longer than others

 * 
 */
volatile uint16_t clock_stretch;
volatile boolean firstcall5;

ISR(TIMER5_COMPC_vect) {
  if (firstcall5) {
    firstcall5 = false;
    return;
  }
  // compare match interrupt service routine (Timer 5 C)

}

// For Time Lapse
// generating periodic shutter by using Timer3 Compare Match C interrupt

volatile int8_t lapse = -1;

