PLUS raisers for the PrimaLuceLab EAGLE CORE allow you to install, on the side of its body, the 80mm PLUS guide rings without them touching the EAGLE CORE body. This way you can install the guide scope on the side and fix the DSLR camera with its photo lens on top. This is the way to use your DSLR camera to record long exposure astrophotography of deep-sky objects with autoguide and without a telescope!