2 INCH EYE 1 INCH AWAY FROM LOUPE BOTTOM STONE
A CHROMATIC (COLOR) -> Corrected color DISTORTION
APLANATIC -> Corrected line DISTORTION
A triplet- Loupe that has corrected line and color distortion. GIA Labs use loupe for Corrected for both color and line distortion.
-portable -limited Magnification
*Fun TIP: Hold loupe with right hand stick finger through backside and grip. Hold tweezer with left hand placing it in right hand between middle finger and fourth finger. Keep both eyes open.