The telescopic nature of the lens made the image look larger to me, just like a telescope is supposed to do.

If you look through a telescope you are experiencing a telescopic view in which the object you are looking at appears larger than it is.

Water often gives a telescopic visual of the objects beneath the surface, making them look larger than they are.

If something is enlarged in your vision you are viewing it in a telescopic light, though you usually need binoculars to do this.

Squinting to read the 16 point font on the paper, the old man knew his telescopic vision was fading and would soon need glasses.