Most of the BioOptics equipment can be reserved online through the General Research Management System - http://grm3.imp.univie.ac.at/. Certain equipment can only be booked via BioOptics staff.
Sign-Up is on a first come, first serve basis.
If the user does not show up within 30 minutes after the start of the booking-time, the whole reservation is cancelled and the equipment is available to everybody.
In GRM you can also sign up to receive an e-mail, if a booking on a chosen instrument is deleted or shortened and therefore additional instrument-time is available. The pdf shows how to set up a cancellation notification.
To allow proper planning for everybody, we would strongly ask you to well plan your experiments, only book the time you actually need and cancel or shorten your bookings as soon as you find out that plans have changed!