Respuesta :
All of the above are true of the extension tubes. Extension tubes degrade the quality of images because it makes a greater loss of light to the lens and attach to the end of the lens closest to the subject in order to move the lens farther to the object. They are hollow because they are not made from lenses as an additional lens.
Answer:
they are hollow
Explanation:
Extension tubes are an attachment of the camera lens.
It is situated in between the lens and the camera body.
It allows for the camera to increase the magnification by increasing the distance between the lens and the focal plane although there is loss of light and requires a longer exposure time.
They have no optical elements, they are hollow.
