Just recieved something that relieves these old eyes of mine. Rechargeable eyeglasses bracket with interchangeable magnifier lenses. So tired of dialing in 64ths" when setting up my guitars. Especially at night with ordinary light sources. So...got this new gizmo from Amazon that has like 5 different lenses and a 2 stage light that helps me dial in those pesky 64ths"! No batteries! Heaven...I'm in heaven. Yeah...beats reading glasses to da curb.