Easy-to-follow video tutorials help you learn software, creative, and business skills.Become a member

Flash sync options

From: Foundations of Photography: Flash

Video: Flash sync options

When you shoot without a flash, you are All cameras therefore have a flash sync speed.

Flash sync options

When you shoot without a flash, you are probably used to setting shutter speed to whatever is appropriate to get the motion stopping or blurring effects that you want in your image. Sure you have to balance that decision against depth of field concerns and the noise response of your image sensor but even with all those considerations you still have a huge amount of shutter speed latitude to play with from full minutes to tiny fractions of a second. When you start using a flash that all changes. When you shoot with a flash, there's a limit to how fast your shutter speed can go because of the way that the shutter in your camera works.

Most cameras that have interchangeable lenses have a type of shutter called a focal plane shutter. This is a shutter that sits, not surprisingly, near the focal plane. Directly in front of the image sensor, or film. This is, as opposed to shutter mechanisms that might be housed within the camera's lens. A focal plane shutter is composed of two curtains. Sometimes made of cloth, sometimes made of metal or plastic. To expose the sensor, one curtain opens, and then another curtain follows to stop the exposure.

In a really fast exposure though, this means that the entire sensor will never be completely exposed. Instead, a slit of exposure will pass across the surface of the sensor. Now if you fire the flash when only a slit, a small part of the sensor is exposed, then only that part of the image will show the flash illumination. So after a point, shutter speed gets too fast for the flash to be in sync with the full exposure of the sensor. When shutter speed is too fast and the flash is out of sync you'll get strange dark bands in your image.

All cameras therefore have a flash sync speed. Any flash picture shot with a shutter speed faster than the flash sink speed will result in an image with this dark banning problem. With shutter speeds below the flash sync speed there will always be some moment, during the exposure, when the entire sensor is exposed, that's the moment when the flash will fire. Because that's when it can illuminate the entire image. Your camera manual will list the flash sync speed of your camera. On most SLR's it's around one, two hundredth of a second, in other words you won't be able to use a shutter speed that's faster than one two hundredth of a second, and still get good flash results.

Because at faster speeds, the shutter will never be entirely open. Some cameras might go as low as one sixtieth and some might go up to one two fiftieth. Now as you'll see later, there are high speed shutter techniques you can use to get around this limitation, and we'll cover those in detail. A few cameras that have interchangable lenses employ what's called a leaf shutter. This is a shutter that can open almost instantenously. A leaf shutter has the advantage that it has an incredibly high flash sync speed. At the time of this shooting though there just aren't a lot of leaf camera shutters on the market.

So, no matter what mode you're shooting in, you will always have an upper limit on the shutter speed that you can use reliably. Note, that your camera will let you use a shutter speed that's higher than the flash sync speed, you just won't get a great result if you do.

Show transcript

This video is part of

Image for Foundations of Photography: Flash
Foundations of Photography: Flash

40 video lessons · 20683 viewers

Ben Long
Author

 
Expand all | Collapse all
  1. 1m 35s
    1. Welcome
      1m 35s
  2. 33m 1s
    1. Exposure revisited
      2m 22s
    2. How flash works
      2m 12s
    3. Balancing ambient light and flash
      3m 54s
    4. Shutter speed, aperture, and flash
      4m 11s
    5. Fill and key light with flash
      4m 13s
    6. Understanding flash range
      2m 47s
    7. Understanding flash modes
      5m 16s
    8. Flash sync options
      3m 2s
    9. Some notes about your camera's built-in flash
      5m 4s
  3. 32m 50s
    1. When to use fill flash
      1m 39s
    2. Using fill flash in auto and program modes
      2m 44s
    3. Fill flash in priority or manual modes
      2m 38s
    4. Using flash exposure compensation
      9m 14s
    5. Using fill flash to eliminate unwanted shadows
      5m 46s
    6. Using fill flash to darken a background
      5m 1s
    7. Using flash to supplement ambient light
      3m 48s
    8. Filling in for a bright sunset
      2m 0s
  4. 33m 53s
    1. Shooting a portrait with flash as the key light
      4m 27s
    2. Why use an external flash?
      3m 34s
    3. Flash power and recharging times
      4m 21s
    4. Flash zoom
      1m 45s
    5. Taking the flash off camera
      5m 35s
    6. Using a softbox
      5m 3s
    7. Balancing flash and window light
      4m 22s
    8. Paying attention to the light in the room
      3m 39s
    9. Flash and white balance
      1m 7s
  5. 54m 20s
    1. Bouncing flash to improve lighting
      13m 8s
    2. Alternative options for bouncing flash
      5m 12s
    3. Using slow sync with flash
      8m 50s
    4. Rear-curtain sync
      11m 54s
    5. Using radio controls to fire a flash
      4m 32s
    6. Working with manual flash
      10m 44s
  6. 25m 16s
    1. Building up to multiple flash units
      13m 3s
    2. Adding the second flash for fill
      5m 19s
    3. The third flash as a backlight
      6m 54s
  7. 7m 50s
    1. Which brand of flash should you buy?
      1m 27s
    2. Guide number considerations
      3m 13s
    3. Shopping recommendations
      3m 10s
  8. 42s
    1. Next steps
      42s

Start learning today

Get unlimited access to all courses for just $25/month.

Become a member
Sometimes @lynda teaches me how to use a program and sometimes Lynda.com changes my life forever. @JosefShutter
@lynda lynda.com is an absolute life saver when it comes to learning todays software. Definitely recommend it! #higherlearning @Michael_Caraway
@lynda The best thing online! Your database of courses is great! To the mark and very helpful. Thanks! @ru22more
Got to create something yesterday I never thought I could do. #thanks @lynda @Ngventurella
I really do love @lynda as a learning platform. Never stop learning and developing, it’s probably our greatest gift as a species! @soundslikedavid
@lynda just subscribed to lynda.com all I can say its brilliant join now trust me @ButchSamurai
@lynda is an awesome resource. The membership is priceless if you take advantage of it. @diabetic_techie
One of the best decision I made this year. Buy a 1yr subscription to @lynda @cybercaptive
guys lynda.com (@lynda) is the best. So far I’ve learned Java, principles of OO programming, and now learning about MS project @lucasmitchell
Signed back up to @lynda dot com. I’ve missed it!! Proper geeking out right now! #timetolearn #geek @JayGodbold
Share a link to this course

What are exercise files?

Exercise files are the same files the author uses in the course. Save time by downloading the author's files instead of setting up your own files, and learn by following along with the instructor.

Can I take this course without the exercise files?

Yes! If you decide you would like the exercise files later, you can upgrade to a premium account any time.

Become a member Download sample files See plans and pricing

Please wait... please wait ...
Upgrade to get access to exercise files.

Exercise files video

How to use exercise files.

Learn by watching, listening, and doing, Exercise files are the same files the author uses in the course, so you can download them and follow along Premium memberships include access to all exercise files in the library.


Exercise files

Exercise files video

How to use exercise files.

For additional information on downloading and using exercise files, watch our instructional video or read the instructions in the FAQ .

This course includes free exercise files, so you can practice while you watch the course. To access all the exercise files in our library, become a Premium Member.

Are you sure you want to mark all the videos in this course as unwatched?

This will not affect your course history, your reports, or your certificates of completion for this course.


Mark all as unwatched Cancel

Congratulations

You have completed Foundations of Photography: Flash.

Return to your organization's learning portal to continue training, or close this page.


OK
Become a member to add this course to a playlist

Join today and get unlimited access to the entire library of video courses—and create as many playlists as you like.

Get started

Already a member ?

Become a member to like this course.

Join today and get unlimited access to the entire library of video courses.

Get started

Already a member?

Exercise files

Learn by watching, listening, and doing! Exercise files are the same files the author uses in the course, so you can download them and follow along. Exercise files are available with all Premium memberships. Learn more

Get started

Already a Premium member?

Exercise files video

How to use exercise files.

Ask a question

Thanks for contacting us.
You’ll hear from our Customer Service team within 24 hours.

Please enter the text shown below:

The classic layout automatically defaults to the latest Flash Player.

To choose a different player, hold the cursor over your name at the top right of any lynda.com page and choose Site preferences from the dropdown menu.

Continue to classic layout Stay on new layout
Exercise files

Access exercise files from a button right under the course name.

Mark videos as unwatched

Remove icons showing you already watched videos if you want to start over.

Control your viewing experience

Make the video wide, narrow, full-screen, or pop the player out of the page into its own window.

Interactive transcripts

Click on text in the transcript to jump to that spot in the video. As the video plays, the relevant spot in the transcript will be highlighted.

Learn more, save more. Upgrade today!

Get our Annual Premium Membership at our best savings yet.

Upgrade to our Annual Premium Membership today and get even more value from your lynda.com subscription:

“In a way, I feel like you are rooting for me. Like you are really invested in my experience, and want me to get as much out of these courses as possible this is the best place to start on your journey to learning new material.”— Nadine H.

Thanks for signing up.

We’ll send you a confirmation email shortly.


Sign up and receive emails about lynda.com and our online training library:

Here’s our privacy policy with more details about how we handle your information.

Keep up with news, tips, and latest courses with emails from lynda.com.

Sign up and receive emails about lynda.com and our online training library:

Here’s our privacy policy with more details about how we handle your information.

   
submit Lightbox submit clicked
Terms and conditions of use

We've updated our terms and conditions (now called terms of service).Go
Review and accept our updated terms of service.