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.
Index  •   • New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
New posts  •   • RTAT  •   • 'Best of'  •   • Gallery  •   • Gear  •   • Reviews
Register to forums    Log in

FORUMS General Gear Talk Flash and Studio Lighting 
Thread started 26 Jan 2017 (Thursday) 04:48
Search threadPrev/next
sponsored links
(this ad will go away when you log in as a registered member)

"Flash not fired" in EXIF

the ­ hulk
"I am not that incredible nowadays"
253 posts
Likes: 27
Joined Feb 2015
Jan 26, 2017 04:48 |  #1

Just wonder why I always get "Flash not fired" in Exif data every time I actually use flash.

I am using a radio trigger (Commlite brand) to fire a Profoto system.

Is it the radio trigger that does not communicates correctly to camera?

Camera 6D.

sponsored links
(this ad will go away when you log in as a registered member)
2,438 posts
Gallery: 5 photos
Likes: 121
Joined Feb 2012
Location: Ontario, Canada
Jan 26, 2017 05:26 |  #2

I typically get that when I use off camera flash and a generic brand trigger such as a Pocket Wizard.

1DX Mark II/5D Mk IV - 16-35L f4 IS - 135L - 24-70L f2.8 IS II - 70-200L f2.8 IS II- 100-400 IIL IS - 100 Macro f2.8L IS - 85mm 1.4 IS L - Σ 35 1.4 Art - Σ 50 1.4 Art - Σ 18-250 - TC 1.4 II - EF 12/25 II - Profoto A1 - Manfrotto 055CXPRO3/Really Right Stuff BH55
Flickr (external link)

looks like I picked a bad week to give up halucinagens
1,045 posts
Gallery: 25 photos
Likes: 804
Joined Dec 2015
Location: AZ-USA
Jan 26, 2017 05:29 |  #3

Nikon too. Flash not fired. I figure it's not firing an on-camera or hotshot speedlight. The camera knows a trigger is not a flash.

Nikons, Rolleiflexes, Elinchroms, Billinghams

John ­ from ­ PA
Cream of the Crop
8,710 posts
Likes: 668
Joined May 2003
Location: Southeast Pennsylvania
Post edited over 2 years ago by John from PA.
Jan 26, 2017 05:51 |  #4

I think the EXIF might also indicate the presence of the return flash so that particular bit should work regardless on on camera or off camera usage. See http://www.awaresystem​ …rivateifd/exif/​flash.html (external link).

Values for bits 1 and 2 indicating the status of returned light.
00 = No strobe return detection function
01 = reserved
10 = Strobe return light not detected
11 = Strobe return light detected

Oops, me again
3,435 posts
Gallery: 588 photos
Best ofs: 4
Likes: 6387
Joined Aug 2012
Location: Applecross, Scotland
Jan 26, 2017 16:02 |  #5

I get "Did fire" message with Profoto lights and the Profoto AirTTL for Canon on my 6D. Maybe it depends on the transmitter used?

flickr (external link)

1,287 posts
Likes: 127
Joined Mar 2013
Location: Indiana
Jan 26, 2017 16:48 |  #6

More to the point, the camera doesn't think a flash is attached unless the flash or trigger uses the camera protocol to respond when the camera tries to talk to it. If it does respond, then the camera can make some assumptions about flash control. If no response, as far as the camera is concerned, there's no compatible flash. So a TTL-capable trigger will be seen as a flash, but a single-pin trigger will not even be detected as a flash (except by the hot shoe microswitch, which serves to prevent the pop-up flash from being activated).

Canon 1Dx | 5D3 | 7D2 | 6D | 70-200L f/2.8IS | 70-200L f/4 | 24-70L f/2.8 | 24-105L f/4IS | 100-400L f/4.5-5.6IS | 17-55 f/2.8IS | 50 f/1.8 | 28-105 f/3.5-4.5 | 4x Godox AD360

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

1,321 views & 2 likes for this thread
"Flash not fired" in EXIF
FORUMS General Gear Talk Flash and Studio Lighting 
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 ©

Latest registered member is astrobalcony
916 guests, 315 members online
Simultaneous users record so far is 15144, that happened on Nov 22, 2018 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.