I was thinking of the f1.7 but was unsure about the size and the focus ring instead of a tab. How do you feel about it? Does it block much of the viewfinder? Do you use a hood?
Also, thanks for all the responses! Maybe I will stick with the PII for now but I shoot a lot in low light so I feel like it would be worth it. Sadly, I can't afford a summilux and the size of others throws me off. The f1.7 ultron is on my radar now for sure.
Ring vs. tab focus: I think this will depend greatly on how accustomed you are to using a tab. Minor adjustment for me and so not a deal-breaker. The focus on my copy is super smooth and it is easy to dial in precise focus fairly quickly. My weak link is definitely my eyes, not the focus ring.
🙂
Hood / size: The lens comes with a hood, but TBH I have not used it on my copy as I wanted to keep the lens as compact as possible and keep as much of the viewfinder unobstructed as was feasible. I may be doing it wrong, but I rarely shoot wide angle lenses with hoods attached.
So the takeaway is: the lens size is something to consider. The girth of the lens is not really the issue, but more so the length. When attached, my Monochrom will tip over towards the lens. You can see I have the lens cap under it in my picture. This was done to keep the camera upright. Additionally, the chrome version I have is made of brass. I believe the black version is aluminum, which should decrease the overall weight of the lens...but the chrome version is quite hefty considering the size of this lens versus something on a DSLR. It is not an issue for me, but I thought I would address this.
The 35 f1.7 Ultron is a great performer, even wide open, but if I was mainly a street shooter, I would probably look for something less obtrusive. If however, IQ for the price is your primary concern (as it was with me), I think it is hard to beat.
Best of luck!