The Dino-Lite Edge series is an advanced category, distinguishing itself with superior quality with very low aberration and vignetting due to the high-quality optic. The adaptable and exchangeable caps provide for even more flexibility in use for most kinds of applications. Certain of Dino-Lite in Edge series possess different advanced features including Extended Depth of Field(EDOF), Extended Dynamic Range(EDR), Advanced Magnification Reading(AMR), and Auto/Manual Refocus.