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Esteemed Contributor
Posts: 2,015
Registered: ‎02-17-2016

Question from instruction manual

My T6S manual has the following box:

 

flashq.jpg

 

Under what conditions could this possibly be true?

 

 

Esteemed Contributor
Posts: 3,129
Registered: ‎06-11-2013

Re: Question from instruction manual

The only condition I have ever heard of is the light's tail-off showing up in a highly reflective surface (such as a mirror).  The flash would have already fired and be cooling down, but you might see a faint glow.

Tim Campbell
5D III, 5D IV, 60Da
Respected Contributor
Posts: 1,832
Registered: ‎02-26-2015

Re: Question from instruction manual

[ Edited ]

TCampbell wrote:

The only condition I have ever heard of is the light's tail-off showing up in a highly reflective surface (such as a mirror).  The flash would have already fired and be cooling down, but you might see a faint glow.


You can see more than just the tail-off in a mirror. You can see the actual flash. It is easy to test in a mirror yourself., set your slave off to the side and have your camera and masterflash pointed at a mirror.

 

Nikon actually makes a Nikon SG-3IR IR Panel for Built-In Flash to surpress that when using their built-in flash as a master flash controller.


Nikon SG-3IR

 

I don't think it would be compatible with Canon gear (without some Dremel work) as it would probably press the button on the hot shoe to indicate there is an external flash there by disabling the built-in flash. 

Esteemed Contributor
Posts: 2,015
Registered: ‎02-17-2016

Re: Question from instruction manual

I will have to try this...

Valued Contributor
Posts: 335
Registered: ‎12-24-2013

Re: Question from instruction manual

In addition to being visible in a mirror, you will also see bright areas on reflective surfaces if you are shooting at very close distances with moderately high ISO. 

Mike Sowsun
S110, SL1, 5D Mk III
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