Six Seasons Fresnel Lens Magnifier, 100x100mm, Focal Length 50mm, Acrylic Ultrathin Lens for Physics Classroom, Solar Heating, Fire Starter, Magnifiying.

Works

cumplio con las expectativas

you'll have better luck starting a fire with 2 wet sticks

I have found this magnifying glass to be durable, as it has not developed any scratches and is easy to keep clean. However, I will mention that due to its smaller viewing area compared to traditional lenses, I sometimes find myself reaching for a different magnifying glass when I need to examine something in greater detail. Nonetheless, the Magnifier Fresnel Lens has been a welcome addition to my collection and serves its purpose well. I had fun making some 3D prints to give myself a couple of options for using the lens. First, I made one that is just a simple frame, so I could hold the lens or put it down without touching the lens itself. The second was the same frame, but I added a handle so my son and I could hold it easier.

This lens works very well to concentrate sunlight and can easily be used to start a fire on a sunny day. The lens can also be used for close inspection of items and reading fine print. The lens is light and sturdy / thin and so easy to stow in a bag or in a pocket.