Wide-Field Corrector designs are presented for the Blanco and Mayall telescopes, the CFHT and the AAT. The designs
are Terezibh-style, with 5 or 6 lenses, and modest negative optical power. They have 2.2°-3° ields of view, with curved
and telecentric focal surfaces suitable for fiber spectroscopy. Some variants also allow wide-field imaging, by changing
the last WFC element. Apart from the adaptation of the Terebizh design for spectroscopy, the key feature is a new
concept for a ‘Compensating Lateral Atmospheric Dispersion Corrector’, with two of the lenses being movable laterally
by small amounts. This provides excellent atmospheric dispersion correction, without any additional surfaces or
absorption. A novel and simple mechanism for providing the required lens motions is proposed, which requires just 3
linear actuators for each of the two moving lenses.