Canon 7D Wireless Flash Transmitter Crash Course | Canon 7 D DVD

[YOUSSEF942]

Great video :) But my question is can i use high speed sync in this wireless system? :D I have a canon t3i :D

[meldiva2003]

Dont understand

[distanbach]

Terrific lesson; thanks very much!

[IMPnD]

Great Great Lesson, Thank's ...

[cell9689]

Great lesson. And that was a great picture of the model. Was that with your 7D?, and also, what lens? Thanx.

[MichaelTheMentor]

@cell9689 Yes, 7D with a 24-70 2.8 lens I believe

[devonmale69]

The 7D talks to the speedlite by light. using Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a commonly used technique for controlling power to inertial electrical devices, made practical by modern electronic power switches. This turns on the flask then off when it has received the right exposure in TTL Unless your using manual. so a series of flashes will fire at the start and another series will flash at the end of the flash on time.

[mcewball13]

Just to be 100% Clear. The onboard Flash DOES NOT contribute to the image. It fires a split second before the shutter opens which is why your limited to only 1/250th of a sec shutter speed max. Any faster and the Flash WOULD contribute. So the Flash doesn't contribute AT ALL. it's wonderful

[MichaelTheMentor]

@mcewball13 It would really depend on what you are shooting and what your settings are. While it is an awesome feature, the flash absolutely does fire and can effect exposure of subjects close to the camera. Thanks!

[apersson850]

@mcewball13 No, that's not true. Stand one meter from a bright wall, set the aperture to f/2.8 and ISO 3200. Now take a photo with the internal master only (no slaves), and have the master set to "not contribute". You'll see that it's fully appropriate to illuminate that scene by itself. The master fires precisely when the shutter has opened, in order to trigger the slaves when the shutter is open.

[5lick5ticker]

...If I had to guess why they still use onboard flash to trigger the external flash is prob because 'smart' electronics, will cause a delay. Speed of light... you cant have a delay. Search for this on youtube "Canon 430EX II Speedlite Flash", the publisher is "nate42nd" Dunno if I can post a link, anyway, tell me if I have my facts wrong. I would watch from about (04:35)

[5lick5ticker]

Hey, first, thanks for the vid, it's awesome! Before I continue, I am no speedlight guru so if I make my name boob, sorry :-( I see many people moaning about the onboard flash contributing to your picture and prob the reason for stalling on buying a speedlingt. I could never find a answer either, BUT, I came across this this vid and from what I can understand the camera forces a SLIGHT delay so that the onboard flash does not contribute to the actual image taken...

[EpicsodeOne]

Dude, you are the HERO of the day! Thank you, I was just about to go and return both flashes that I have just bought, I thouhgt there was a way to trigger them without ABSOLUTELY without the built in which is REALLY annoying. Thank you VERY MUCH!

[TheAntiParadigm]

oh and the onboard flash uses different power levels to indicate settings to the slave.

[TheAntiParadigm]

From what I have seen and heard, it is the actual flash that sets off the wireless slave. That is why you cannot turn it off. Depending on the settings the onboard flash will go off to tell the wireless one how much power to use. It actually produces the flash before the shutter opens, so the onboard flash is not effecting the picture.

[hristijank2]

you cant turn off the on board flash? why not just push it down? or it will pop up again?

[deonholt]

Hi & thanx for excellent tutorial. Have 550EX Speedlite with 7D. No matter what I try, cannot get my flash's "zoom" to work with my camera's zoom. When putting flash on 7D it works. Can it not or am I doing something wrong?

[Neiliooooo]

Barking robot dog LOL

[krisaguero]

Thank you for the video! Just triggered a Nikon SB-800 with a Canon 580EX I with my 7D.

[apersson850]

There is no limit to how many flashes that can go into one group.

The internal trigger-only flash is good enough to illuminate a bright object one meter away on larger aperture (say f/2.8) and high ISO (say 3200). In more normal settings, it's not noticeable.

[b4ilook]

Did you ever get the 7d's internal flash to not fire when you wanted to use just the external, slave, canon speedlite flash(430EX2)? I can't, neither can Canon(Aust). They told me it was impossible to do so and suggested I use a 580 as the onboard master unit. This seems like an expensive overkill. Help please.

[MichaelTheMentor]

@b4ilook ya....you cannot turn it off :( boo

[b4ilook]

@MichaelTheMentor. Ref EOS 60D instruction manual bottom page 141-"even if you disable the built-in flash from firing, it will still fire to control the slave unit". 60D=7D for wireless flash, so this explains why the 7D's camera flash cannot be turned off. Elsewhere I read, "...the built-in will need to be up and it will pulse flash at low power to signal the slave 430EX2 to fire....".Should explain all.Thank you, Regards,

[devonmale69]

@MichaelTheMentor Of cours you cant If it did not fire then it will not be talking to your speedlite will it?? This is how it controls it with pulse so fast you cant see it turns on and off your speedlites, so if it not fire then your speedlites will also not fire. Do you know understand electronics? its not radio communication

[MichaelTheMentor]

@devonmale69 Sorry I dont understand what you are saying. Thanks!

[msowsun]

@b4ilook

You CAN set the internal flash so that it puts out only enough light to act as the trigger, and does not contribute light to your image. There is a very small amount of light visible if you are shooting into a mirror, but it should not be visible in most photos. If you shoot at very high ISO or at very close distances, I suppose it could contribute some light to the scene.

[msowsun]

@b4ilook

Even if you were to use the 580EX as onboard master unit (and select it to disable) you will still see the 580EX flash in a mirror. It behaves exactly the same way as the 7D master. The flash you see just triggers the slave and does not contribute to the photo if set to "off" or "disable".

[halo3guyy]

@b4ilook Sure it flashes yeah but what does it matter when u can set it not to fire in ur final picture

[dotcomtone]

Brilliant tutorial! Thank you. Really helped me figure out how to get the most out of my Canon 430ex II's. Thanks again!

[ChillpointNews]

The two downsides of this is that 1. your built-in flash will always fire and 2. your slave can never help you autofocus. But other than that, it opens up endless of possibilities. And I've managed to fire my 550EX in situations where it's pretty much hidden from the camera.

[lesliekaner]

very helpful easy to understand- great job, thanks!!!

[nate42nd]

As I understand the built in flash....it will not contribute to the exposure when using it to trigger off camera flashes. Is this correct to your knowledge? Thanks.

[nina82]

how can i set my speedlite to slave?? to i need to plug somethin to my speedlite so it can be connected to my Canon 7D?? my flash is 580EXII

[rocktaper]

great video. thanks

[ThePeej]

excellent! Thanks so much!

[sweetamstaff]

I am new to slave flash photography and didn't understand a lick until I saw this video. Thank you for explaining the plethora of information in a quick and easy to understand video. I still have more to learn, but this was a great start for me.

[nharbin72]

God bless you.I think you have the best info for photographers on you tube. I am definitely sold on your DVD.

[10dragz10]

Hi Michael, thank you for posting this, think I'm gonna buy your DVD.

When I do understand this correctly, with a 7D, you don't need an extra Remote-System (for example Pocketwizards) for your Flash-Units (let it be 3 external Flashes)? So I just need Speedlights that is able to communicate with my camera via Infra-Red???

[MichaelTheMentor]

@10dragz10 That is correct. Best wishes!

[Kennay32]

Thanks for the wicked video. Helped way more than the instruction booklet themselves. Any chance Canon will release a firmware upgrade for that pop-up flash problem?

[snappuppy]

Nice tutorial, is there a limit to have many strobes that can be within a group?

[MichaelTheMentor]

@snappuppy within ~25 feet you should be good for as many as 4-5 as long as you have line of sight between the flash and the trnsmitter

[darm356]

Thank you!!!

[kritmil00]

Awesome tutorial. I wish Canon would incorporate this feature in all their upcoming cameras. Thanks again and great work! I think I'll buy this camera just because of this feature. I was looking at the 5D II but it needs to be updated so bad.

[xvoui]

will the 7d fire my 430 II SPEEDLIGHT without any attatchments ?

im using a st-e2 at the moment.

great video thanx.

[MichaelTheMentor]

Yes!

[arherrington]

Safe to say this would work with the T1i?

[daveawebber]

robodog rules (grin)

great presentation thanks

[urbanshox]

Thanks, I was going crazy thinking I did something wrong because my pop-up flash keeps firing. When clearly on Canon's video reference site it says that your wireless flash will fire without your pop-up firing when set to the third icon from the top in the settings.

[MichaelTheMentor]

It drove me crazy too....at least for now there is no way to shut it off completely.

[meazle]

Thanks, now i can't see anything else than a barking robodog...