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To encap: Great information, especially the ophir 'pointer' [no pun intended]. :) Ophir -- very useful specialized camera -- so far seems to be exactly what I need.

Cameras don't seem to be good at detecting laser-spots/reflections in their view-finder. It ends up showing just as a spot, about the same as a big tree-leaf on the ground. The human eye sees the intense reflection like INSANE/RIDICULOUS, but NOT the camera. (In fact even the sun, which you...

really?

typo -- sorry.

Anyone know of a yellow laser (and vendor source) that would be similar to this 0.8watt 532nm dpss 10X one at 0.4 miles, similar in terms of strength/brightness and beam-diameter: https://www.jetlasers.org/index.php?id_product=10&controller=product

Anyone know of a red laser (and vendor source) that would be similar to this 0.8watt 532nm dpss 10X one at 0.4 miles, similar in terms of strength/brightness and beam-diameter: https://www.jetlasers.org/index.php?id_product=10&controller=product

Great thanks. I didn't know the first knob could be adjusted completely independent of the 2nd knob (in the way you described). Will try that on one of mine that needs tightening-up of the beam.

That's a great answer. I was kinda wondering if there is a very-systematic way to do it. It's a two-dimensional search (two knobs), which could seemingly take a long time without some systematic method. (If there were only one knob, it would be cakewalk, of course.)

I know this will end up being a dumb question, but when you buy a laser from jetlasers.org, what is the best way to dial/tune the two knobs to make the beam as small as possible at large distances (half a mile, e.g.)? There are two knobs when you buy a laser with a 10x expander. [My first...

Does anyone know a rough estimate of the end-cost ($) of a 1kilowatt (1kW) infrared (say 1000nm) laser with a beam-diameter of about 6inches at 0.4 miles? (I am guessing the cost will be pretty ridiculous; but, I thought it wouldn't hurt to ask.) Also, what would the weight be roughly?

At this juncture, I think that you and Immo1282 are correct that it is a mirage-type-effect.

The car engine was running. But, there is quite a long extension cord from the inverter to the laser. The laser itself should be pretty steady. You can see its reflection-center-point is not moving, in the 2nd clip. I can drop the voltage myself, but at the moment it was a quick way to be...

Is there a way to stop a DPSS 532nm laser (0.9watt) from flickering as in the attached short clip? It is about a 5Hz flicker of significant intensity-magnitude. Full-disclosure -- it is running off of an 5volt-adapter connected to a power-inverter which is connected to a 12volt car battery...

A $700 laser has a hole in it?

It is a project, whose details cannot be stated. I am not a terrorist. lol. (I assume "stock" meant "stalk"). It is true I am very new to lasers. So, some dumb-questions are partially inevitable. Just ignore my posts if you don't want to 'babysit'.

Ok, Encap, I didn't read the very bottom of the page at jetlasers.org, on the 532nm one. I confess I don't know whether these things automatically turn themselves off/on or if they just overheat and damage themselves. (If the jetlasers.org page tells that also, I apologize.) My suspicion is the...

Immo, 600yards, not 600feet. :D But, yes, I have dropped the requirement of the beam being visible from the side. Yep, I am fully aware now that I need the 10x beam-expander.

I realize neither of these specifies "DPSS". But which will be 'more easily seen' by a camera at 600yards (The 532nm is about $171 more.) (both have 10x beam expander): 532nm 800mw...

I can't give details about the application. I no longer require the beam to be visible from the side. I am working on a different approach now. The 6 inches of beam diameter is very realistic -- take a 1mm beam at the aperture, 2mrad divergence, and a 10x expander and now you have a 4.7inch...

Does the laser in post #5 automatically turn off at the end of it's 3minute on-cycle?