The CV 15 is a really great lens assuming you can find a good copy, I think the latest ones haven't been plaugued with as much corner smearing issues as the earlier one. I had a great copy but I stupidly dropped it one day and now it's de-centrered and likely not worth the hassle to send it to CV for repair. I finally sold my 15mm Zeiss Distagon 2.8 last week so I'm using the Sony 12-24 and the Leica 16-18-21 to cover that focal length. The Sony is fantactic at 15 and pretty good at 12 but it's a pain to use with filters so with filter work I'm sticking to the Leica. Lately I've been thinking about the Laowa 15 F2 but I'm still undecided.
Joe
Hoping I win the CV 15mm lottery. Like you, I’ve heard optimistic reports of better copies of late, so hopefully they figured something out in manufacturing.
Nadim (Puckman) has an m-mount copy that is great, but I decided a while back to live with a 100% e-mount kit.
I love the Laowa ultra-wides. I had the 12mm zero distortion and thought it was great. If astro was of any interest for me in shooting, I might have gone with Laowa. Unfortunately for me, the Laowa 12mm 2.8 as well as 15mm f/2 suffer from a fatal flaw: too large/heavy (for my usage). The CV 12 & 15 and Loxia 21 & 35 are so compact I can fit them all in my tiniest camera bag (TT Urban Approach 5).






