“error: stray ‘\’ in the program”

Do you have any suggestions?

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// Intervaluino
// this code programs the Arduino as an intervalometer for a Canon EOS camera, using two relays and a push button
// this enables you to create time-lapse movies with your camera.
// change the variables “full_time” and “short_time” to automatically calculate the right time interval (based on 25 frames per second)
// upload the code via USB, fire up the Arduino, plug it into your camera’s remote shutter release, and press the Intervaluino push button.
// press the button another time to stop the sequence (doesn’t work that well if your interval is long)
// make sure to turn on single shoot
// (c) Lord Yo 2008 (intervaluino a_t sporez do:t com)
// Licensed under a Creative Commons (Attribution Non-Commercial Share-Alike) license

/////////// Change these variables according to your needs

long full_time = 14400; //full length time to cover (in seconds)
long short_time = 120; //length of time-lapse movie (in seconds)
int shutter_on = 200; //time to press shutter, set between 100 and 300
int shutter_wait = 5000; //initial time to wait to begin sequence
int wakeup = 300; //time to activate wakeup (focus)
int wakewait =200; //time between wake and shutter
long shutter_off = (40 * full_time / short_time) – shutter_on – wakeup – wakewait; //time to wait between shutter releases;

int outpin = 11; //output for shutter relay from pin 11
int wakepin = 8; //output for focus relay from pin 8
int switchpin = 2; //input from button from pin 2

int val; //value of button press
int buttonState; //check variable for change of button press
int on_off = 0; //state of sequence (turned on, turned off)

/////////// Setup ////////////

void setup() {
pinMode(outpin, OUTPUT); //outpin gives output
pinMode(switchpin, INPUT); //switchpin receives input
pinMode(wakepin, OUTPUT); //wakepin gives output

buttonState = digitalRead(switchpin); //read value of the button
}

/////////// Loop ////////////

void loop(){

val = digitalRead(switchpin); // read button value and store it in val

if (val != buttonState) { // if the button state has changed…
if (val == LOW) { // check if the button is pressed…
if (on_off == 0) { // if the sequence is currently off…
on_off = 1; // turn the sequence on
delay(shutter_wait); // wait the initial period
} else {
on_off = 0; // turn the sequence off
}
}
}

buttonState = val; //switch the button state

if (on_off == 1) { //while the sequence is turned on…

digitalWrite(wakepin, HIGH); //turn wakeup/focus on
delay(wakeup); //keep focus
digitalWrite(wakepin, LOW); //turn wakeup off
delay(wakewait); //wait
digitalWrite(outpin, HIGH); //press the shutter
delay(shutter_on); //wait the shutter release time
digitalWrite(outpin, LOW); //release shutter
delay(shutter_off); //wait for next round
}

}
#

(third attempt at posting… have to keep typing this over and over… Recaptcha sucks)

Thanks!
Joe