Question about Canon Speedlite 580EX II TTL Flash

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Af assist on canon flash 580exii not working

My canon flash 580 exii does not fire the ir beam needed to assist af in low light condition , all setting ok on camera which is canon rebel 450d

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  • 17 Answers

Check Custom Functions of Camera and Flash it can be turned off in both locations

Posted on Jun 14, 2009

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Posted on Jan 02, 2017

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How do I use this flash as a slave?


You need to set the flash to slave and the same channel as the master. If the flash doesn't have this function it may be able to be fired optically. Set the master flash to low power and set the off camera flash to optical.

Jul 15, 2015 | Sunpak DigiFlash 3000 External Flash

1 Answer

Why is my led screen blurry in low light before I take a picture?


It sounds like your camera settings have the( AF Assist Beam) on Off? That is the Amber Color light you see when you half press the shutter button. If that setting is set to OFF, then the camera can not focus in low light giving you blurry pictures as it can not see any light to assist the camera on focusing. If you turn on the (AF Assist Beam) to on, they when you press the shutter button half ways down you will see a Reddish/ Amber light, that light helps the camera find a focus point, giving you a slightly better low light photo.

Jun 09, 2014 | Canon PowerShot SD1400 IS IXUS 130...

1 Answer

Canon 580exii speedlight, I want to only use the slaves, but they won't fire when I turn off the master


You didn't say what camera model you are using.
If you have 7D/60D/T4i you can have a total of 3 wireless ir flashes.

580EX II must be set at Master, say Group A & Channel 1
Two 270EX II must be set at Slave, say Group A & Channel 1
or
One 270EX II set at Group A & Channel 1
Second 270EX II set Group A & Channel 2


Then go into camera menu & turn off Master flash & turn settings for those two flashes.



Send me a email, then I can help you much better.

atdlee@netzero.com

Nov 17, 2012 | Canon Speedlite 580EX II TTL Flash

1 Answer

Canon 50d AF assist beam doesn't fire


  • See page 87 of the manual to see which settings the AF-Assist does NOT work

Apr 07, 2010 | Canon EOS 50D 15.1MP Digital SLR Camera...

1 Answer

MY CAMERA (CANON 1000D) TAKES BEAUTIFUL DAYTIME PHOTO'S BUT CAN'T SEEM TO FOCUS ON A SUBJECT IN LOW LIGHT & AS A RESULT WONT TAKE THE SHOT. WHAT DO I HAVE TO DO TO TAKE LOW LIGHT / NIGHT TIME SHOTS ?...


Focusing in low light can be difficult for the autofocus system and sometimes you will need to use the manual focus, you can select the magnified image and see if that helps
See the online manual - page98 refers to how to magnify the image - using the magnify button - changes between 5X 10X and full screen
To help the camera autofocus there is an assist beam - this takes the form of flashes from flash to help the AF system focus - make sure it is ON - there is a custom function full details on Page 157 C.Fn III: Auto focus/Drive 6 AF-assist beam firing
FYIThe support site for this camera is here, including online manual http://software.canon-europe.com/products/0010629.asp
  • If this solutions solves you problem, please do not forget to rate my solution.
  • If not, then please comment back so I can help some more

Mar 31, 2010 | Canon Rebel XS / Eos 1000D Digital Camera...

1 Answer

I have a Tamron lense 18-250mmm for Canon. It does not focus with zoom use, iwith different Canon bodies , particularly with a focus on a light or low contrast point. Canon lenses do not seem to have this...


In low light situations, connect a speedlite flash to your body (e.g. 430EXII or 580EXII). These flashes emit a AF assist beam to assist focussing in low light situations.

Nov 28, 2009 | Tamron 28-300mm f/3.5-6.3 DI XR for Canon

1 Answer

Canon ex580 speed lite


No.

One is IR(infrared) sensor. If this one comes on, you can not see it. It's invisible to the naked eyes. Only animals, snakes and IR cameras can see it.
The red light that you see when pressing lightly on the shutter button is the AF assist light, not a sensor.

You can see that by looking at a mirror.

atdlee@netzero.com

Jul 06, 2008 | Canon SPEEDLITE 580EX TTL Flash

2 Answers

550ex PC sync socket conversions


I do medical/photo equipment repairs & IR conversion, but I'm in the USA.
Over 20 years and Canon knew about that problem including many photographers. Most of Canon flashes can not do manual or aperture mode because they have to flash sensor.
Now they have it on the 580EXII. I guess Canon has no photographer working in the flash department.

Canon screwed photographers, buy a Metz, Vivitar, Sigma, Sunpak, or NIkon.

Alexander
atdlee@netzero.com

Nov 27, 2007 | Canon Speedlite 550EX TTL Flash

1 Answer

AF Beam Cover


Check out LEE Filter or Kodak IR Filter
Place that filter over AF Sensor.

Or try ti find remote(TV/VCR/DVD/radio) control unit with a large filter over led.

You can still glue those broken part and glued it back as close as possible.

atdlee@netzero.com

Oct 01, 2007 | Canon Speedlite 550EX TTL Flash

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