kmilo wrote in post #18783632
seems like the perfect wedding photographer lens, no?
You could very well be correct.
What I am seeing, the trend, as things continue to evolve, is that digital sensors keep improving (MUCH faster than glass) with low light ability so much better every few years, that advances that get us a stop of light appear to be less important (relatively) than they were a decade ago.
EG; In the era of the 100-400 version 1 "trombone" it was without question the most widely used zoom lens on the forum for wildlife use. That said, very few used it for sports, which often needed faster f/2.8 (or faster) aperture, and the vast majority of the 100-400mm wildlife users either had, or more so, wanted a faster long prime.
These days f/5.6 @ 400mm is no longer a hindrance for either sports of wildlife.
In fact I am happy to shoot a SIGMA 100-400mm @ f/6.3 instead. (I would have laughed at SIGMA if they had tried to market that lower speed lens 10 years ago! No 10 years ago SIGMA was focusing on faster lenses, like 120-300mm f/2.8)
Couple the advances in sensors and noise and insanely high ISO settings that no one would have dreamed possible a short while ago, with the fact that the hardware is also allowing us auto focus at much smaller apertures, natively or with teleconverters, and a lot of the speed advantages of fast glass are in fact less important now.
Anyway, clearly there are and always will be applications where faster apertures are desired/needed. My point of view however is that the need is getting less, not more. That is the trend.