Exercise: Second Curtain Sync

Normally, the flash fires at the beginning of the the exposure time.  But if you go into the camera’s menu, you can change the setting so that it fires at the end of the exposure.  If a person or object moves through the frame, ambient light on the moving subject will create “smoke”.  The flash at the end of the exposure freezes the motion of the subject.

These were 1.5 second exposures at f11. I used a speedlite flash unit that I borrowed (thank you Dave Cooney!) with the flash compensation dialed down and the built in diffuser in place.

IMG_3999-Daman and Destiny

IMG_3997-Daman and Destiny

IMG_3996-Daman and Destiny

Many thanks to Daman Holland and Destiny Gates for being my models, and to Scott Barton for setting up the stage and ambient light for me!!

flash-synchronization-1st-2nd-curtainHere’s a great photo I found on the Internet that shows the difference between using the flash in the default “first curtain” mode (top) and changing the setting to second or rear curtain (bottom).

In the top photo, the flash stopped action as the car entered the frame, and then ambient light captured the drag so that it appears in front of the car. In the bottom photo, the camera captured the drag in ambient light first, then the flash stopped action as the car was leaving the frame.

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3 thoughts on “Exercise: Second Curtain Sync

  1. alphawhiskeyfoxtrot March 25, 2015 at 11:18 pm Reply

    So interesting … I’d love to hear what class you’re taking. It always seems like you’re learning something new and fun. 🙂

  2. Jennifer Schlick March 26, 2015 at 6:29 am Reply

    I’m taking Digital Photography II at the local community college. It’s pretty fun. I’m learning a lot of techniques that I may never use, but it gives me a deeper appreciation of others’ work: I can sometimes guess how they make their images!

  3. Emily March 26, 2015 at 9:13 am Reply

    Awesome!

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