• WANTED: Happy members who like to discuss audio and other topics related to our interest. Desire to learn and share knowledge of science required as is 20 years of participation in forums (not all true). Come here to have fun, be ready to be teased and not take online life too seriously. We now measure and review equipment for free! Click here for details.

PERMAFLASH TM

Joined
Sep 12, 2020
Messages
1
Likes
0
Location
Texas
#1
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

Major Contributor
Central Scrutinizer
Joined
Mar 9, 2016
Messages
9,952
Likes
8,362
Location
Riverview FL
#2
Last edited:

Don Hills

Addicted to Fun and Learning
Joined
Mar 1, 2016
Messages
641
Likes
329
Location
Wellington, New Zealand
#3
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.
 
Top Bottom