The Ultimate Application of Lenses

The telescope tube made of thick sheet metal was extremely sturdy. Different diameters divided it into four sections, gradually narrowing from the front toward the back. Even the eyepiece at the very rear was large, with a diameter of three centimeters.

Luo Chong raised the huge device with both hands and looked toward the distant city wall. He could even see the fine patterns on the wall's bricks. Then he turned it toward the docks outside the city, where he could make out the wrinkles on the faces of the commoners by the water with perfect clarity.

He raised it a little higher, and with that glance, he saw the newly built city tower of Xuefu County on the opposite bank. The wall below it was blocked by the woods and could no longer be seen.

Luo Chong was instantly thrilled. This was a great weapon of mass destruction! If one stood high enough with a sufficiently broad field of vision, seeing ten kilometers away would be child's play. He immediately asked the researchers beside him,

"How powerful is this one?"

"Reporting to the Chieftain, according to our calculations, this one has 600× magnification. The objective lens is 120 millimeters, the eyepiece is 30 millimeters, and it has a fixed focal length with no zoom. It uses a convex-convex lens combination." The researcher beside him immediately answered.

"Very good. Can you make it even larger?" Luo Chong looked at him expectantly.

"Um, it should be possible. How large does the Chieftain want it?" Hearing that the Chieftain liked it, the researcher brightened up as well. Only when the Chieftain had needs could they have work.

Luo Chong pondered this. A large telescope like this, with its six-hundredfold magnification, was sufficient to serve as a small astronomical telescope. Yet he was