Approve the Cookies
This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and our Privacy Policy.
OK
Index  •   • New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
Guest
New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
Register to forums    Log in

 
FORUMS General Gear Talk Flash and Studio Lighting 
Thread started 16 Jan 2010 (Saturday) 08:03
Search threadPrev/next
sponsored links
(this ad will go away when you log in as a registered member)

Canon 7D wireless flash problem -- cannot disable popup

 
DrPablo
Goldmember
Avatar
1,568 posts
Likes: 3
Joined Jan 2006
Location: North Carolina
     
Jan 16, 2010 08:03 |  #1

Just got my new 7D and I'm trying to figure out wireless flash with an off-shoe 580EX.

I know how to select the option that uses the external flash only, i.e. not the popup, but when that's selected the popup flash still fires (and quite brightly at that).

I haven't upgraded the firmware yet -- is this a known problem that the firmware has handled?


Canon 5D Mark IV, 24-105L II, 17 TS-E f/4L, MPE 65, Sigma 50 f/1.4, Sigma 85 f/1.4, 100 f/2.8L, 135 f/2L, 70-200 f/4L, 400 L
Film gear: Agfa 8x10, Cambo 4x5, Noblex 150, Hasselblad 500 C/M

  
  LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as a registered member)
dmstraton
Senior Member
Avatar
557 posts
Joined Jun 2005
Location: Closter, NJ - just moved!
     
Jan 16, 2010 08:10 |  #2

It will fire a preflash to tell the other flash what to do, determine exposure, etc.

If it is still flashing to expose, you might have incorrectly chosen to fire both - check again and ensure that you have only selected the external flash icon, not the ext flash + internal option.


dmstraton
5DmkII, Zeiss 21 f2.8, Zeiss 35 f2, Zeiss 50 f2 Makro-Planar, 580EXII, Voigtlander Bessa R2M, Voigtlander 35 f1.4 Nokton

  
  LOG IN TO REPLY
DrPablo
THREAD ­ STARTER
Goldmember
Avatar
1,568 posts
Likes: 3
Joined Jan 2006
Location: North Carolina
     
Jan 16, 2010 08:22 as a reply to  @ dmstraton's post |  #3

Thanks, but I'm quite sure I've selected the right one. There are three options and only one of them is external flash alone.

The flash is bright enough to cast a visible shadow off the lens in the photo.


Canon 5D Mark IV, 24-105L II, 17 TS-E f/4L, MPE 65, Sigma 50 f/1.4, Sigma 85 f/1.4, 100 f/2.8L, 135 f/2L, 70-200 f/4L, 400 L
Film gear: Agfa 8x10, Cambo 4x5, Noblex 150, Hasselblad 500 C/M

  
  LOG IN TO REPLY
PacAce
Cream of the Crop
Avatar
26,899 posts
Likes: 39
Joined Feb 2003
Location: Keystone State, USA
     
Jan 16, 2010 09:09 |  #4

DrPablo wrote in post #9404369 (external link)
Thanks, but I'm quite sure I've selected the right one. There are three options and only one of them is external flash alone.

The flash is bright enough to cast a visible shadow off the lens in the photo.

How close are you to the subject or whatever the shadow is cast upon?


...Leo

  
  LOG IN TO REPLY
DrPablo
THREAD ­ STARTER
Goldmember
Avatar
1,568 posts
Likes: 3
Joined Jan 2006
Location: North Carolina
     
Jan 16, 2010 09:18 as a reply to  @ PacAce's post |  #5

Well, I was just testing it out so I was only a couple feet away from it, I haven't tried with a worthwhile subject.


Canon 5D Mark IV, 24-105L II, 17 TS-E f/4L, MPE 65, Sigma 50 f/1.4, Sigma 85 f/1.4, 100 f/2.8L, 135 f/2L, 70-200 f/4L, 400 L
Film gear: Agfa 8x10, Cambo 4x5, Noblex 150, Hasselblad 500 C/M

  
  LOG IN TO REPLY
PacAce
Cream of the Crop
Avatar
26,899 posts
Likes: 39
Joined Feb 2003
Location: Keystone State, USA
     
Jan 16, 2010 09:39 |  #6

DrPablo wrote in post #9404607 (external link)
Well, I was just testing it out so I was only a couple feet away from it, I haven't tried with a worthwhile subject.

What you're seeing is normal. Even though you have the built-in flash set not to fire, it still will but at a very low power level. Ordinarily, you won't see the effect of the built-in flash firing but if the lighting is low and the off-camera flash does not light up the entire scene or if the ISO is set relatively high, you will see the effect of the built-in flash as you did.


...Leo

  
  LOG IN TO REPLY
CxThree
Senior Member
713 posts
Joined May 2009
     
Jan 16, 2010 10:48 |  #7

http://www.usa.canon.c​om …ctID=329&articl​eTypeID=48 (external link)

For more info, see the videos at that link.

You are seeing normal wireless flash behavior. It's the same way on a Nikon system. The on camera flash will fire a small flash that will not be involved in the exposure.


Canon EOS 5D MKIII, 7D
Canon Lenses : 70-200 F2.8L II IS : 24-105 F4L IS : 16-35 F2.8L : 50mm F1.4 : 85mm F1.8 : 100mm F2.8 Macro : 10-22mm
4x 600EX-RT
Speedotron Black Line

  
  LOG IN TO REPLY
int2str
Goldmember
1,881 posts
Likes: 2
Joined Mar 2009
Location: Fremont, CA
     
Jan 16, 2010 11:41 as a reply to  @ CxThree's post |  #8

Please see the 7D ETTL FAQ here (Items 4 & 5) that explains the phenomenon:
https://photography-on-the.net/forum/showthre​ad.php?t=767760

And here's a workaround for the light spill:
https://photography-on-the.net/forum/showthre​ad.php?t=785999




  
  LOG IN TO REPLY
linh811
Senior Member
551 posts
Joined Dec 2009
Location: Spring, TX
     
Jan 17, 2010 22:30 |  #9

int2str wrote in post #9405255 (external link)
And here's a workaround for the light spill:
https://photography-on-the.net/forum/showthre​ad.php?t=785999

THANK YOU !!!!! I ONLY shoot with OCF, was wondering how to defeat that damn popup!!!


7D || 5D2 || three 580exII's | 430exII | 24L II | 50L | 100L macro | 70-200/2.8L IS | 24-105L | canon 50/1.4 | canon 17-55/2.8 | Sigma 35/1.4 |Sigma 50/1.4 | Tamron 24-70/2.8 VC |Pocket Wizard Plus II. slingpro 100 and 200, and a million other accessories I can't even remember.

  
  LOG IN TO REPLY
loco69
Hatchling
3 posts
Joined Apr 2010
Location: Australia
     
May 12, 2010 04:55 |  #10

Trap for young players!

Problem fixed - but I could see one button on one side and thought that perhaps there was a depressed button on the other side (mucked about with that for ages)... Alas there wasn't - must just be a small hole! One button on one side only. Thanks to all of you for your fine solution/s.

Tony.




  
  LOG IN TO REPLY
apersson850
Cream of the Crop
Avatar
12,318 posts
Gallery: 11 photos
Likes: 426
Joined Nov 2007
Location: Traryd, Sweden
     
May 12, 2010 06:49 as a reply to  @ loco69's post |  #11

Which button are you referring to?? ???


Anders

  
  LOG IN TO REPLY
sponsored links
(this ad will go away when you log in as a registered member)

5,076 views & 0 likes for this thread
Canon 7D wireless flash problem -- cannot disable popup
FORUMS General Gear Talk Flash and Studio Lighting 
AAA
x 1600
y 1600

Jump to forum...   •  Rules   •  Index   •  New posts   •  RTAT   •  'Best of'   •  Gallery   •  Gear   •  Reviews   •  Member list   •  Polls   •  Image rules   •  Search   •  Password reset

Not a member yet?
Register to forums
Registered members may log in to forums and access all the features: full search, image upload, follow forums, own gear list and ratings, likes, more forums, private messaging, thread follow, notifications, own gallery, all settings, view hosted photos, own reviews, see more and do more... and all is free. Don't be a stranger - register now and start posting!


COOKIES DISCLAIMER: This website uses cookies to improve your user experience. By using this site, you agree to our use of cookies and to our privacy policy.
Privacy policy and cookie usage info.


POWERED BY AMASS forum software 2.1forum software
version 2.1 /
code and design
by Pekka Saarinen ©
for photography-on-the.net

Latest registered member is Omgitsbeks
1126 guests, 152 members online
Simultaneous users record so far is 15144, that happened on Nov 22, 2018

Photography-on-the.net Digital Photography Forums is the website for photographers and all who love great photos, camera and post processing techniques, gear talk, discussion and sharing. Professionals, hobbyists, newbies and those who don't even own a camera -- all are welcome regardless of skill, favourite brand, gear, gender or age. Registering and usage is free.