[Rover]

The quality lenses are getting bigger, no getting away from that - the megapixel war is pushing the demands up (the Sigma Art 85 is a great example... it's huge but it's the first lens that could tame the 50MP sensor well). However, If you needed a 70-200/2.8 or 100-400/4.5-5.6 lens... there was never any other way. However, next to the 70-200/2.8 I have a small and compact 24-85/3.5-4.5 lens (yes... I got one again). I like it but it probably doesn't cut it at all on the new sensors.