Easy MDI The Easy MDI is a low cost version of the MDI mirror mount. But the Easy MDI also guarantees a precise and repeatable adjustment for one inch optics. Features: Precisely adjustable Low price The difference to the original MDI: no carbide spikes smaller back plate without thread but with lowering for M4 screws only available with 2 screws with 250 µm/turn (100 TPI) Easy MDI €36.00