![](http://ems-bino.com/wordpress/wp-content/uploads/2020/07/ul200720-1024x583.jpg)
One of the OTA should be slided to adjust the IPD.
The standard spacing of the EMS-UL allows up to 130mm in the largest diameter of the OTA, mostly the diameter of the dew-shield.
![](http://ems-bino.com/wordpress/wp-content/uploads/2020/07/ulweight.jpg)
EMS will surprise every new user because it will add or subtract nothing except for erecting the image at the comfortable right-angle viewing.
At the same time, it also surprises the new user for its lightness . It is because no heavy prisms are in it.