Originally posted by Paul the Sunman Is it credible? Look at the DFA 24-70, 15-30, 70-200, 150-450, 50. They are surely much heavier than their predecessors. Or were these not included?
The thing is that there weren't predecessors for the 150-450, 24-70, and 15-30 and the most recent 80-200 f2.8 Pentax manufactured was discontinued quite a while ago. Still, most of Pentax's lenses, not just the limiteds, fall into the category of decent sized -- zooms like the 18-135, 28-105, and 18-50 are all relatively small and light. Most of their primes are quite small, the notable exception being the DFA *50.
Honestly, I hope that Pentax continues to give us options -- smaller and lightweight lenses like the limiteds and non * lenses combined the * lenses that may be heavy and large, but are top of the line. It will be up to each Pentaxian to choose which is needed for a given situation.