Answer:
how I would use that technique like be in long grass to take photos like in africa.
A pinhole camera<span> is a simple </span>camera<span> without a lens but with a tiny aperture, a </span>pinhole<span> – effectively a light-proof box with a small hole in one side. Light from a scene passes through the aperture and projects an inverted image on the opposite side of the box, which is known as the </span>camera<span> obscura effect.</span>
He simplified everything down to the geometric essentials! Cylinder, sphere, cone, etc.
They are both going to try to sell you stuff
