aside from the three mentioned, what is your total investment in EF-S long glass? what long glass do you reach for when needed?
I was wondering, just how much
can you invest in EF-S long glass? (Or, perhaps, how do you define long glass?

) The 55-250 is the longest EF-S lens offered, following the 18-135. Everything else tops out at 85, I believe. EF-S lenses are designed to give croppers the FOV of wider EF lenses. There is no demand for long EF-S lenses, since people use long lenses to "reach." I mean, who would buy an EF-S lens with the FF FOV of the 100-400 when they can use the 100-400 perfectly well and get 1.6x the "reach"?