I think there is a philosophical point around the 75 that I would like to explore. I am a "50mm=standard" shooter. 35 to me is a wideangle. I regard the 75 - which I have in VC form, and I love - as a "long-standard", in much the same way as I regard a 40mm as a "short-standard". A 90, on the other hand, is a short-tele in my book. The difference kicks in in terms of how I use the 75 as opposed to the 90. I use the 75 to crop tightly, whereas I use the 90 to get closer (closer still, of course with a 135). In practical terms that means I will happily wander around for hours with a 75 fitted, but I will put on a 90 for specific shots.
Regards,
Bill
Bill, as Alan said, that seems to be a remarkably consistent view of the 75. I came about my love of the 75 differently (but honestly). On my OM gear, back in the day, I used to think of my 50mm as "a little too wide" in that I often thought "I should have been closer" when I shot with the 50. I loved my Tamron 70-210 zoom on OM gear for lots of reasons including that 70mm seemed to suit me rather well for people shots, although the lens size wasn't very convenient.
Cut forward to the digital era and I found that a 50mm lens on a crop-factor digital SLR seemed to suit me very well - far better than 50mm ever suited me with film. An "80mm" field of view. A large part of my decision process in buying an RF camera was the availability of a decent and decently-priced 75mm lens, to preserve that field of view. As it turns out, I "see" 50mm and 35mm far better on an RF than I ever could or did with an SLR. But also, as it turns out, that 75 (that spent months off being CLA'd) was a 75mm Summilux at what I now know was a shockingly good price!
Its now my best and favourite lens. And, somehow, even though I can now see 50mm and 35mm in a way I never could before, the 75 seems, still, to be my natural focal length. And I never feel myself wanting something longer on an RF camera. A 90 seems "too long" on an RF though I often work much longer on an SLR.
That rambling is probably fairly boring to others but it taught me something about my "eye" and how I "see" differently with an RF than I do with an SLR. Also, I'll be forever grateful to Lady Luck that I got what turns out to be such a great deal on my 75 'lux. If I'd seen a less-lucky price (I sure can't afford current prices
😱) I may never have bought an RF camera. I've learned a lot from the experience and continue to learn.
...Mike
(P.S. if anyone's interested, following the link to dA in my signature will show you to a fair number of shots taken with my 75, mixed in with other stuff)