EXPOSURE=1.0

for i in range(100):
    former_exposure = eiger.getExposure()
    if former_exposure !=0.2:
        raise Exception("Bad exposure")
    set_exposure_time(EXPOSURE)
    grab_frame(image, None, True) #Update reference image if changing exposure
    
    
    time.sleep(1.0)
    if former_exposure!=EXPOSURE:
        set_exposure_time(former_exposure)
    restore_eiger() 
    if (i%3)==0:
        eiger.stop()
        time.sleep(1.0)
        print"Stop"