These new lensmeters are simple, light, accurate and economical. Some of the outstanding featuers include: a wide view field and a high eye point eyepiece which enable easy examination, an improved internal reading sstem for easy measurement, the green filter complying with ISO standards enabling high precision measurement. The LM-10 is corona-shaped and enables easy measurement. The LM-10DX: has a cross-line pinhole target to enable accurate measurement and its light can be set anywehre with ease. It's standard with a prism compensator.