Is there a list of all push/pull zooms that Canon has manufactured for the EF mount?
I do know the following ones:
EF 100-400mm f/4.5-5.6 L IS USM
EF 28-300mm f/3.5-5.6 L IS USM
EF 35-350mm f/3.5-5.6 L USM
EF 100-300mm f/5.6
EF 100-300mm f/5.6 L
EF 70-210mm f/4
EF 70-210mm f/3.5-4.5 USM
EF 35-105mm f/3.5-4.5
EF 50-200mm f/3.5-4.5
EF 50-200mm f/3.5-4.5 L