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I don't know about the coverage but it is adjustable. I can focus on this 420-800mm. The one I linked to has an option for Infrared as well. You can see in the selection on the site

@RedCowboy Yes, there are extenders. I don't know what to do. This camera lens performs well. The thing is, I want to do something portable, and these lenses are a big problem. I didn't have to remove the 260W pump lenses. With them I was getting a lot of small specks in the distance...

260W

New update. I removed the lenses after the cube on both lasers and now I get a solid output beam that expands very little. With the lenses, the expansion is very aggressive, because there the focus is right in front of them so that it can enter the fiber. So, if someone is going to do like my...

@RedCowboy With the photo lens, good focus is obtained at a distance. I had to take it apart and remove all the plastics. I also made the adapter for 9mm lenses, but with a little longer use, the lenses break. I will wait to see how this 9mm, which is for infrared light, will be. The bad...

Yeah, I've seen that video. I contacted this guy. He makes some great lasers. He also has infrared lasers. You can check out his page if you have Facebook. He removes the fiber from his lasers. He uses lenses for photography for optics. https://www.facebook.com/share/1Agz3jE7uo/

When I get home, I will try the lenses with the fiber. If I get a good focus like this, I'll keep the fiber with the 120W one, because if I want to remove it anyway, I'll have to drill a hole. The bad thing is that shavings from the case can get inside and there is no way to remove them...

I think I managed to set up a good output beam shape. Although without polishing and a special cutting tool. In the current situation, the fiber does not ignite. When I get home I will do tests with lenses through the fiber. If things work out, I will cut the fiber and leave about 20 cm...

@RedCowboy OK. thank you In general, if there is a fiber it does not work for me, because I am aiming for long range. With 260W, I have somewhat solved the problem, because the laser can be disassembled, while the 120W one cannot. I have a lens that I bought. It works with fiber. In the...

I think I stopped the ignition. With a mock knife, I rubbed where it burned. But that doesn't work for me. If possible, give a link to the tools for polishing such fibers

@RedCowboy Yeah, I'll try what happens with a 9mm lens first. Also when the new one arrives. Before that I need to put the pump on the lathe and slowly drill a 12mm hole because it is currently 6mm. If it doesn't work, I'll buy that camera telescope and give it a try. With it, I was told...

@RedCowboy Yes, after the cube there are two lenses that focus the output. Only with this lens that I found, a good beam is obtained. I ordered a 9mm lens for Infrared. If I remove the two lenses that are in front of the cube, I will have to drill a large hole in the front for the wide beam...

I don't know why, but no lens I have can focus. What is this due to? It's like putting a regular glass in front. I have an actively glued lens with a focal length of 1250mm. I put it in front at different distances, but I can't get a beam. It's like I didn't put anything in front. Where am...

I received the 260W pump yesterday. It was connected to the fiber. I had to remove it. I cut it at the bottom, but then the problem happened. When turned on, the tip that brings out the fiber started to light up. So this tip had to be removed. When tried, it broke and stayed inside. I...

I can't say anything about how it will happen yet. So far I have not dealt with such laser pumps. My goal is to collect everything in a box like the ones I use so far and have an adjustable focus. I was recommended a similar lens from a photo camera 420-800mm, which is very cheap ($55) The...

I bought another one with a power of 120W. Powering it will be easier

Yes, I will be very careful. I decided on step-up drivers, as the accumulator that I will make again will be 24V from 18 pcs 18650 batteries. I also ordered the one from 1200W, but I am leaning towards the one from 28V /20 A. I don't know if these 2A in addition will not damage the laser. I...

Hello. I have free time and decided to assemble a portable IR laser with a power of 260W. For this I will use this laser pump which needs 29V and 18A power. This is new to me so I'll probably need some help. I also ordered a compatible lens that mounts on the array and will probably have...

I decided to do something similar. I will make a new post about my project in a little while

Please see what I wrote below. I have uploaded a picture of my radiator. He is bigger. See the photos above.