Question about flash and exif

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Giovanni_1968
Giovanni_1968 Veteran Member • Posts: 3,389
Question about flash and exif

Was browsing portrait pictures onto Flickr to find out if one can retrieve flash settings but, so far, it only says if flash fired or not and I am not really pretty sure it is accurate either, does exif data store flash settings to so one can later on retrieve it and adjust next time to better suit circumstances?

grazie

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Giovanni - 70% GAS affected
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tugwilson Veteran Member • Posts: 3,369
Re: Question about flash and exif
1

In the general case the camera doesn't know what the flash settings are so it can't put the details in the exif data.

This describes what can be recorded in the FLASH exif field.

Giovanni_1968
OP Giovanni_1968 Veteran Member • Posts: 3,389
Re: Question about flash and exif

tugwilson wrote:

In the general case the camera doesn't know what the flash settings are so it can't put the details in the exif data.

This describes what can be recorded in the FLASH exif field.

Clear, thank you for the link!

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Giovanni - 70% GAS affected
http://www.flickr.com/photos/giovanniaprea/
Nikon D850 - Nikon D800 - Nikon D2Xs - Fuji S5Pro - Nikon F - Nikon F3
J.A. Michell Gyrodec - Audio Research SP-9 - Aeron AP-890 - JBL4311B - JBL L220
JN70CN - 14.14.30E 40.32.40N

 Giovanni_1968's gear list:Giovanni_1968's gear list
Fujifilm FinePix S5 Pro Nikon D2Xs Nikon D800 Nikon AF-S Micro-Nikkor 60mm F2.8G ED Nikon AF Nikkor 50mm f/1.4D +17 more
Ed Shapiro
Ed Shapiro Contributing Member • Posts: 529
Re: Question about flash and exif

Most experienced portrait photograhers that use electronic flash in the work would probably be using studio flash gear that works independently of the camera TTL integrated exposure system and would make their setting manually.  In a multiple flash setup, one light might be directly wired to the camera via the PC-type flas terminal or a remote trigger system attached to the hot shoe. Whe there is no integration with the camera;'s exposure control system or internal commanded feature, all the EXIF data might show the aperture and shutter speed. There would be no record of the indipendlyly controlled power settings of the remote units.

In a portrait setup, little can be learned of the EXIF data because there is no indication of the position, distance, direction, modification, or feathering technique of any of the important lights. The ratio of the light outputs to one and other, the ratio of fill-in or augmented light to natural light would not show as well.

If you are somewhat familiar  with lighting techniques in portraiture, SOME of these lighting elements would be obvious to you upon VISUALLY analyzing the image.  If you are learning these elements, through reading or online education, the best resources will have detailed explanations, diagrams and exposure data.

Of course, important attributes such as posing,  camera position, and composition are visual elements as well and the camera settings will have no bearing on these aspects.

Ed Shapiro- Commercial and Portrait Photographer. Ottawa, Ontario Canada

Giovanni_1968
OP Giovanni_1968 Veteran Member • Posts: 3,389
Re: Question about flash and exif

Ed Shapiro wrote:

Most experienced portrait photograhers that use electronic flash in the work would probably be using studio flash gear that works independently of the camera TTL integrated exposure system and would make their setting manually. In a multiple flash setup, one light might be directly wired to the camera via the PC-type flas terminal or a remote trigger system attached to the hot shoe. Whe there is no integration with the camera;'s exposure control system or internal commanded feature, all the EXIF data might show the aperture and shutter speed. There would be no record of the indipendlyly controlled power settings of the remote units.

...

Of course, important attributes such as posing, camera position, and composition are visual elements as well and the camera settings will have no bearing on these aspects.

Ed Shapiro- Commercial and Portrait Photographer. Ottawa, Ontario Canada

I understand all of the above, was just curious as some of the portraits I see on Flickr clearly have a flash firing but it doesn't always get reported in the exif data and now I know why.

Also, yes, watching videos and reading how to use an external source of light to step up the game, I am in fact saving to get an AD200Pro, a stand and a soft box.

Grazie Ed

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Giovanni - 70% GAS affected
http://www.flickr.com/photos/giovanniaprea/
Nikon D850 - Nikon D800 - Nikon D2Xs - Fuji S5Pro - Nikon F - Nikon F3
J.A. Michell Gyrodec - Audio Research SP-9 - Aeron AP-890 - JBL4311B - JBL L220
JN70CN - 14.14.30E 40.32.40N

 Giovanni_1968's gear list:Giovanni_1968's gear list
Fujifilm FinePix S5 Pro Nikon D2Xs Nikon D800 Nikon AF-S Micro-Nikkor 60mm F2.8G ED Nikon AF Nikkor 50mm f/1.4D +17 more
Klaus dk
Klaus dk Veteran Member • Posts: 7,857
Re: Question about flash and exif

There's a lot of info on portrait lighting in Christopher Grey's Master Lighting Guide for Portrait Photographers.

What's in vogue changes, but understanding how lighting can be used in portraiture is useful knowledge.

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tugwilson Veteran Member • Posts: 3,369
Re: Question about flash and exif

Giovanni_1968 wrote:

I understand all of the above, was just curious as some of the portraits I see on Flickr clearly have a flash firing but it doesn't always get reported in the exif data and now I know why.

If the flash is triggered by a single pin trigger on the hotshoe the camera will not be aware that it's happening. If it's a smart trigger then it's very likely that it wiil.

Also, yes, watching videos and reading how to use an external source of light to step up the game, I am in fact saving to get an AD200Pro, a stand and a soft box.

Hope you have fun with that.

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