JeffreyG wrote in post #18608761
That's how I see it. One item that has me excited about my new Sony set is a move to some smaller lenses matched to the smaller body. I spent years working myself into a heavier and more expensive kit, pushing for the nth degree of performance or super fast apertures. And to some extent, looking hard for small gem lenses on Canon still leaves them on a big SLR. Also, a lot of the smaller primes are quite old designs. The EF 85/1.8 does not compare favorably with the much newer FE 1.8/85.
For now I still need a few of these fast zooms for sports (with my Canon) but when that ends I look forward to a smaller kit. I observe three things, which people may argue with as they see it.
1) Having owned f/1.2 zooms, I realized that faster than f/2 is often too fast for usable DOF. There are some shots where super fast apertures can be well used, but you pay a lot in both mass and $$$ for the option. As I find myself shooting mostly at f/2 anyway, I like being able to get a modern ~f/2 prime that is so much smaller.
2) These modern lenses (which is every Sony E-mount, they are all new) are all very sharp in the middle region. Even a 'consumer' zoom like the FE 70-300 (not that it is cheap at ~1000 street value) are very sharp in the middle. That was not the case with such lenses 10 years ago, perhaps.
3) If you do want to stoke your GAS, the next frontier is to look at corner performance. Like this thread here:
https://www.dpreview.com/forums/thread/4274050 . But you know when you are looking for sharp extreme corners at f/2, you are pretty much just trying to talk yourself into the more expensive lens.
yeah, I agree.
I got down the 50L/85L rabbit hole during canon days simply because options werent that good. I liked the iq of the 50 1.8 for instance, but at that time, it couldnt focus worth anything. the 50 1.4 broke one me twice, 85 CA was pretty bad and a tad dull on the colors. I liked the Canon 28 IS, but it's kind of big looking back now, that I own the FE 28. The 40 STM replaced with the FE 35 f2.8. I really liked the 40, but dare I say, I love the FE 35 . Very happy with the sony fe 50 1.8, it's the cheap 50 I've always wanted. FE 85, high quality, but I dont carry it as often as it's a "big" lens, even if it's relatively small 
#3 is especially funny. Pin sharp extreme edges wide open usually carries a hefty price tag and / or associated size. My FE 35 is that way, $800 for a 35mm f2.8 is kind of ridiculous. I'de have no problems with IQ if downgraded to FE 28/50 levels, but so should the price down to the 100-150 mark. I paid much less on the used market, and indeed it's a great lens, but even the used price I see it as too high.
Sony A7siii/A7iv/ZV-1 - FE 24/1.4 - SY 24/2.8 - FE 35/2.8 - FE 50/1.8 - FE 85/1.8 - F 600/5.6 - CZ 100-300 - Tamron 17-28/2.8 - 28-75/2.8 - 28-200 RXD
Panasonic GH6 - Laowa 7.5/2 - PL 15/1.7 - P 42.5/1.8 - OM 75/1.8 - PL 10-25/1.7 - P 12-32 - P 14-140
