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## Main Question or Discussion Point

I'm trying to make a handmade telescope, but I'm stuck with the lenses I bought 2 lenses. they are the same

"convex from one side and concave from the other side" like glasses lenses.

then I knew that I need a double convex for both the object lens and the eyepiece lens.

so I decided to put the 2 lenses that I bought together to make a double convex lens so now air is in between the two lenses.

Is what I did going to give me a double convex lens?!

"convex from one side and concave from the other side" like glasses lenses.

then I knew that I need a double convex for both the object lens and the eyepiece lens.

so I decided to put the 2 lenses that I bought together to make a double convex lens so now air is in between the two lenses.

Is what I did going to give me a double convex lens?!