HY-18 Digital PD Ruler

CTA-100 Eyepiece Adapter converts smart phones into professional digital eyepieces for the traditional optical Instruments. Just attach the equipped smart

Feature:  Non-mydriatic image with reliable quality.  45⁰ full-circle design.  Switching anterior-posterior, para-position compensation lens.  Split-line aligning

Feature: 1.automatic operation system 2.anterior eye photography 3.with computer built in 4.non-mydriatic，auto focus, auto exposure 5. Minimum Pupil Size: 2.8mm

Converts smart phones into professional digital eyepieces for the traditional optical Instruments. Just attach the equipped smart phone to the