image

In this article I will show you the capabilities of a 300mW NEJE laser. After just a glance on this machine I came up with several things to make with it. The price was appealing, so I decided to give it a try.
Read more
372
0
Probably, everyone who has a GoPro or another waterproof camera tried to make such picture.

image

However, when you dip the camera into the water, you see only a huge blurry water edge that overlaps everything above and below. Water appears to be too close to the camera lens, and therefore, it is out of focus. A special “hemisphere” is needed to avoid this this effect.

Read more
38893
0