  We present two novel designs for a telescope suitable for
massively-multiplexed spectroscopy. The first is a very wide field Cassegrain
telescope optimised for fibre feeding. It provides a Field Of View (FOV) of 2.5
degrees diameter with a 10m primary mirror. It is telecentric and works at F/3,
optimal for fibre injection. As an option, a gravity invariant focus for the
central 10 arc-minutes can be added, to host, for instance, a giant integral
field unit (IFU). It has acceptable performance in the 360-1300 nm wavelength
range. The second concept is an innovative five mirror telescope design based
on a Three Mirror Anastigmatic (TMA) concept. The design provides a large FOV
in a convenient, gravity- invariant focal plane, and is scalable to a range of
telescope diameters. As specific example, we present a 10m telescope with a 1.5
degree diameter FOV and a relay system that allows simultaneous spectroscopy
with 10,000 mini-IFUs over a square degree, or, alternatively a 17.5 square
arcminutes giant IFU, by using 240 MUSE-type spectrographs. We stress the
importance of developing the telescope and instrument designs for both cases.
