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PERMAFLASH TM

kennethwest

New Member
Joined
Sep 12, 2020
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Location
Texas
Folks,
Yes. My latest and greatest idea. I'm at the lakes edge taking pictures of the sunset. So into it, next thing you know its dark. Better get back. Oh oh. The car is 1.5 km from the the lake. The trail is now pitch black.
Put your flash on the hotshoe and put it on Permaflash TM mode. Now your flash has literally become a flashlight in this life threatening situation.
But seriously folks, I'm curious to know why don't typical flash units have a mode to keep the light permanently on?
Other than baterry drain, and dismissing the whole flashlight lighting up the trail scenario I do see advantages to this.
 

RayDunzl

Grand Contributor
Central Scrutinizer
Joined
Mar 9, 2016
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Location
Riverview FL
Here's one, I suppose:

1600099095610.png


https://www.nikonusa.com/en/nikon-products/product/flashes/sb-500-af-speedlight.html

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A real "flash" would not be equivalent to an LED bulb, I suppose.

I'm a little out of date, but they charge, then POW! with the shutter release.

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This may be a little out of date too:

http://repairfaq.cis.upenn.edu/Misc/strbfaq.htm#strbpoo

1600099469473.png



More on flash tubes: http://www.bristolwatch.com/ele/index.htm
 
Last edited:

Don Hills

Addicted to Fun and Learning
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Mar 1, 2016
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Location
Wellington, New Zealand
I don't have my camera with me all the time. I do have my phone.
As Ray pointed out, flash units use a tube filled with xenon gas which works on the same principle as a neon tube.
In theory you could make it glow continuously like a neon tube, but it would quickly overheat and explode if you tried to run it hard enough to produce enough light to see by. The Nikon unit that Ray quoted has a separate small LED light for video use.
 
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