Motic GM171 Photo Eyepiece 2.5X is to be used together with photo adapter (sold separately) in order to mount or attach a DSLR camera to a trinocular microscope.
It is also advisable to purchase T-mount adapter from the camera's manufacturer in order for the proper set-up of the DSLR camera on the microscope for the best photography or video recordings.
It has the magnification rage of 2.5X