Bigfatmole
Senior Member
Hi guys please help. I trying to use the flash on and off with rear curtain sync. All the you tube videos I've watched only show the flash fire at the end of the exposure which is how I expected it to work. However on my D610 & my D5100 the flash fires at the start and at the end of the exposure . I'm under the understanding with rear sync the flash should only fire at the end of the exposure, am I doing something wrong ??? Is there a setting apart from putting flash on rear sync which needs to be set ? Or should it fire at start and at the end. If there is a setting that needs changing please can you direct me to where it is..many thanks in advance