How to turn off the built-in flash of the A77 in remote control mode?

Started Sep 4, 2012 | Discussions
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greves2 New Member • Posts: 16
How to turn off the built-in flash of the A77 in remote control mode?

Hello,

I would like to use the built-in flash of my A77 to control remote flashes, but not contribute at all to the lighting of the image. The image is taken using a mirror so the built-in flash will be visible and should not be emitting any light in the picture.

Is this possible? If yes, how?

Thank you!

Gabor

Sony SLT-A77
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Bart7D
Bart7D Veteran Member • Posts: 4,234
Re: How to turn off the built-in flash of the A77 in remote control mode?

It is not possible, since codes in the light burst are used to trigger the distant flash(es).

But the best thing you can do is put a piece of black film (black part of a negative) over the built-in flash. It will dim most of the visible light, while allowing the needed infra-red light to pass and reach the external flash.

Bart

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Konica Minolta Maxxum 7D Sony Alpha DSLR-A700 Sony SLT-A77 Sony SLT-A99 Sony a77 II +19 more
Cetonid
Cetonid Senior Member • Posts: 2,494
Could something like this work?

http://www.lightscoop.com/buynow.html

Of course, you would need to have overhead reflective surface like a light colored ceiling.

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Edward Sargent
Edward Sargent Veteran Member • Posts: 4,635
Re: How to turn off the built-in flash of the A77 in remote control mode?

Unless you are less than 5ft from your subject the light from the popup should not effect the image as it is at a much lower power in wireless mode (you are in wireless mode?). As others have said you can tape exposed film to the flash or get one of the A-S1 IR Panels http://www.ebay.com/itm/A-S1-IR-Panel-camera-Pop-up-Flash-Sony-DSLR-Cameras-/230844441682

greves2 wrote:

Hello,

I would like to use the built-in flash of my A77 to control remote flashes,

Sony or Minolta remotes?

but not contribute at all to the lighting of the image.

Unless you are less than 5ft from your subject the light from the popup should not effect the image as it is at a much lower power in wireless mode (you are in wireless mode?).

The image is taken using a mirror so the built-in flash will be visible and should not be emitting any light in the picture.

It has to, the Sony wireless remote system works via light pulses

Is this possible? If yes, how?

As others have said you can tape exposed film to the flash or get one of the A-S1 IR Panels http://www.ebay.com/itm/A-S1-IR-Panel-camera-Pop-up-Flash-Sony-DSLR-Cameras-/230844441682 .
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A77, A700 8mm Bower, 50mm 1.7, 35-70 F4, 90mm Tamron, 18-250 Sigma, 70-200 Sigma & 50-500 Bigma
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Sony Cyber-shot DSC-QX10 Sony SLT-A99 Sony a77 II Sony 70-200mm F2.8 G Sony 70-300mm F4.5-5.6 G SSM +33 more
greves2 OP New Member • Posts: 16
Re: How to turn off the built-in flash of the A77 in remote control mode?

Thanks. The A55 could do it. I fact that's all it could do. It built-in flash could not be used for fill light because it would control the remote flash BEFORE the exposure. I was wondering if there is a setting to set that kind of behavior.

Thanks agai!

Gabor

Glenn Veteran Member • Posts: 7,509
Re: How to turn off the built-in flash of the A77 in remote control mode?

One other option is to set HSS mode. The on camera flash will be entirely finished it's communication and won't be visible during exposure at all. If I understand there is a mirror present in your scene and you don't want the flash seen there? this is the only way to do it besides wired or radio triggers.
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sybersitizen Veteran Member • Posts: 5,961
Re: How to turn off the built-in flash of the A77 in remote control mode?

greves2 wrote:

I would like to use the built-in flash of my A77 to control remote flashes, but not contribute at all to the lighting of the image. The image is taken using a mirror so the built-in flash will be visible and should not be emitting any light in the picture.

Is this possible? If yes, how?

Bart7D wrote:

It is not possible, since codes in the light burst are used to trigger the distant flash(es)...

Yes, it is possible.

greves2 , I assume you are using a fully compatible remote flash that supports HSS. If so, shoot in S or M mode and make sure to set the shutter speed on the camera so that the 'HSS' indicator appears. On the A77 I think this will happen at 1/320s. Then the pop-up flash will never contribute any visible light to the scene.

Bart7D
Bart7D Veteran Member • Posts: 4,234
Re: How to turn off the built-in flash of the A77 in remote control mode?

Thanks, Sybersitizen & Glenn - that's a good work-around I wasn't aware of!

Bart

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Konica Minolta Maxxum 7D Sony Alpha DSLR-A700 Sony SLT-A77 Sony SLT-A99 Sony a77 II +19 more
greves2 OP New Member • Posts: 16
Re: How to turn off the built-in flash of the A77 in remote control mode?

Thanks, Sybersitizen & Glenn - that's a good work-around I wasn't aware of either!
I tested it and works like a charm.

Gabor

Glenn Veteran Member • Posts: 7,509
Re: How to turn off the built-in flash of the A77 in remote control mode?
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