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The blue burn thread

RedCowboy

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We have to wear our safety glasses while we burn, but watching the recorded event later on the computer screen is " THE BLUE BURN " and I am so addicted to it.





 
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EllyEnthusiastic

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Nice beam DashApple.
There's something about that deep blue beam that looks so right, of course I would never look at it with my naked eye, that's why I love these videos, it's like a forbidden beauty revealed.
So, maybe I'm silly, but why?

I get not wanting to look at the dot while it's burning, but I would think the smokey beam itself would be pretty safe to look at. The laser is 'only' 50mw, and the room is bright, so blue light exposure shouldn't be too much of a concern.
 

DashApple

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Nice beam DashApple.
There's something about that deep blue beam that looks so right, of course I would never look at it with my naked eye, that's why I love these videos, it's like a forbidden beauty revealed.
Thanks , I have to say 473nm is my favourite , wish I did a video on the 150mW I had .

Yeah , Great thing we have cameras : P
 

Pman

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Red, I'll throw in that if you are going to series/parallel cells they really need to back closelyached for safety. Never ever ever never mix and match different cells or old/new cells and I would definately not use multiple "fire" cells together. I personally wouldn't even use the 2 "fire" cells that come together in the same package with a laser as I don't trust that they would have the same insides.
I would HIGHLY recommend that people keep cells that are used together always be used together and not just toss all the same cells in a box and grab a couple randomly. I took the expensive way out on this by buying a ton of batteries so each of my units has their own assigned cells. Sounds crazy and unnecessary but it's just the way I do things. Not suggesting anyone else do that as I spent a stupid amount of money on batteries which is completely unnecessary.
 

Lux Nitida

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Just thought I would contribute a video to this thread. :D Grabbed my 2+W 445nm Skylasers PL-445 and throw some stuff into the beam for you all. Filming while burning makes it more challenging for me since it is impossible to see the beam through my OD5+ glasses but at least I can sort of see it on my phone's screen. I still use my long tweezers for the match sequences because I am always afraid of putting my fingers in the beam, never did it yet and don't want to! Anyway got to set a paper towel roll on fire, slice electrical tape like butter, easily set white paper on fire and then some instant match lights ending with me cutting the head off a match without igniting it, which was a little tricky since I could barely see the beam on my phone! :beer:

PS: Yes I know I need to clean my oven and I had a fire extinguisher standing by. :D

 
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Lux Nitida

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It's always fun isn't it. :D :beer:
p.s. I used to use the dark amber safety glasses, but the bright amber ones from survival lasers, they are eagle pair give me much better visibility with great protection, od +4 good for viewing up to a 10 watt spot, and 50% visible light transmission, they are a real upgrade to the darker glasses and have worked well for me, and I use them a lot. THESE GLASSES

Yes it is. :D I haven't burned anything with it in quite awhile, just been using it for photography lately. To address your P.S. I have some OD4+ that have great visibility too like those but the dot is still uncomfortably bright when burning with this, so I stay with the OD5+ but I can see my beam while videoing on the phone so it works out, I was stupid though I forgot to turn my screen brightness all the way up which would have been a lot better lol. :D
 
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EllyEnthusiastic

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Sure the beam in the air is ok to look at, but when most people are burning they are doing so up close and need to be wearing laser safety glasses, if you have a beam set up in a foggy/smoky room safely that's ok to view the beam in most cases.

Now when we have 25 watt beams and thick fog the glow in front of our faces may exceed maximum safe exposure, but that's not what I was saying.

The point is this: I wear my safety glasses while burning, so I don't get to see the beam until the video, do you understand what I meant now? :)

To make my thought even more transparent, I enjoy seeing the beam do it's work, and that I can only watch later on recorded video.
Oh, I understand. I thought you meant you don't view the beam in the open, even when you're taking a break from burning stuff.

Why is it that the spot, which would damage unprotected eyes, does not damage the camera? Does it have to do with automatic exposure shifts that our eyes aren't as good at doing, or is it just that cameras are cheap and can be replaced when they eventually die from viewing a laser spot?
 

Razako

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Oh, I understand. I thought you meant you don't view the beam in the open, even when you're taking a break from burning stuff.

Why is it that the spot, which would damage unprotected eyes, does not damage the camera? Does it have to do with automatic exposure shifts that our eyes aren't as good at doing, or is it just that cameras are cheap and can be replaced when they eventually die from viewing a laser spot?
I think the camera is just more durable than our retinas. Looking at the dot of a powerful laser up close might be comparable to staring into the sun. With that said, you can still burn holes in the photoreceptor of your camera if you ever shine the laser directly into your camera.
 

Pman

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Has anyone tried lighting magnesium from one of those cheap fire starting flint kits?
 

DashApple

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Has anyone tried lighting magnesium from one of those cheap fire starting flint kits?
Never tried it with 445nm , but I did light Mg ribbon with a 60W Co2 .
 
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