New Feature: Playlist Center! Pick a topic and let our playlists guide the way.

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

Dedicated wireless flashes vs. slave flashes (automatic vs. manual exposure)

From: Photo Assignment: Off-Camera Flash

Video: Dedicated wireless flashes vs. slave flashes (automatic vs. manual exposure)

When you remove the camera from the flash, you have a couple of different ways they can communicate with one another: Slave and Dedicated. I'm going to start with Slave, because it's the more basic of the two. The way the Slave works is basically you have a trigger that's attached to the flash, and in this case, this is a light trigger. So if another flash goes off, this sees it, makes this flash go off. Pretty simple! You can have as many of these as you want. The other type of trigger is a radio trigger - Same thing except it uses radio waves, so we have greater distance.

Dedicated wireless flashes vs. slave flashes (automatic vs. manual exposure)

When you remove the camera from the flash, you have a couple of different ways they can communicate with one another: Slave and Dedicated. I'm going to start with Slave, because it's the more basic of the two. The way the Slave works is basically you have a trigger that's attached to the flash, and in this case, this is a light trigger. So if another flash goes off, this sees it, makes this flash go off. Pretty simple! You can have as many of these as you want. The other type of trigger is a radio trigger - Same thing except it uses radio waves, so we have greater distance.

In both cases, it's only triggering the flash. There is no exposure information related at all. Now, Dedicated is a little different animal. In Dedicated, you have both exposure and flash trigger at the same time. Now, if we look at the camera here, we can see a little bit about how this works. Right here, you have the main trigger, right here. This is what Slaves use and Dedicated. This is what fires the flash when there is a contact right here. But you notice we have these other contacts also.

This is where the exposure information is conveyed. Now, when your camera is on the flash, they're talking to each other. But you can also have this communication go on with a cord, as long as they match up, in this case Canon to Canon. You can have a transmitter, again though, you notice they're matching up right here. So then this is the wireless situation. In some cameras, such as this Nikon, the controller can actually be built into the camera itself.

The main thing to remember is that when you're using a Dedicated system, a lot is being done by the camera and the flash. This allows you to stay behind the camera, think about composition. It's the way that I like to work. Let the exposure be handled by these guys, and let me think about getting a great shot.

Show transcript

This video is part of

Image for Photo Assignment: Off-Camera Flash
Photo Assignment: Off-Camera Flash

16 video lessons · 18386 viewers

Derrick Story
Author

 

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

Are you sure you want to delete this note?

No

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.