Portable Fresnel Lens 100x100 mm, Book Reading Magnifier Bookmark, Small Magnifying Sheet, Solar Concentrator, Outdoor Survival & Ignition Tool for DIY Optical Viewfinder, Focal Length 50mm

Fast shipping can’t wait to try it using it for starting a fire when outdoors /emergency situations

Works as described, good purchase.

It was a high quality lens but it was the wrong size for my application

Nice and sturdy lens. The size and optics properties are as advertised.

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.

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

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.

Kinda of disappointed. The lens doesn’t seem to be very. Strong. I could be using it wrong. Still playing around with it..!!

Works

cumplio con las expectativas