This 7X Mini Comparator works well with all of our 26mm Diameter Reticles. (See PDF Comparator/Reticle Usage Matrix) It has an excellent, anti-reflection coated, achromatic doublet lens system and 24mm Field of View that is based on actual testing at our plant. One removable standard Scale Reticle, -10mm to +10mm, .10mm divisions and centered Crosshair is provided with the 7X Mini Comparator. The Focusing Ring is a smooth action helicoid twist ring. The 7X Mini Comparator is provided in a soft shell vinyl case with lens tissue.