Adjustable Zoom magnification Zoom Binoculars are convenient to use when more
power is needed to view a particular subject. The zoom mechanism on this type of
binocular allows the user to enjoy not just one magnification but a choice of
many. They have variable magnification allowing the user to view the subject up
close without changing to another binocular. Some consumers believe it is
convenient to have a variable magnification, while more professional users
reject this idea due to the weight and minor sacrifice in image quality and the
difficulty in stabilizing the image at high magnification.