Hello JuanK, and welcome to the jungle.
No you can't use zoom or lenses with bigger front element than 50mm
more info:
http://provideocoalition.com/awilt/story/preview-slr-magic-anamorphot-133x50-anamorphic-adapter
"The lens it's fitted to should have a front element diameter smaller than 50mm or vignetting is likely, as the adapter's rear element (or its clean aperture, at least) is 50mm. Also note that the weight of the adapter makes it unsuitable for direct attachment to most servo-focus primes as the load on the focusing mechanism would be excessive. "
