I have some information on the 200mm F2 from Laowa. Take this as a 'rumour', I guess. The source is "trust me bro".
- 43mm drop-in filters with gear that allows adjustments for VND, PL and CPL.
- At least for the z-mount version, plan is to support teleconverters. I whined about Nikon's engineering of these here:
https://nikongear.net/revival/index.php?topic=11298.0 I have conveyed this to VO and they said they will get a copy of these TCs to ensure mechanical compatibility.
- With the TC, filters cannot be used.
- Canon EF mount offered which allows AF on Canon DSLRs, and can be adapted to Canon's mirrorless mount -- a way to circumvent patents/licensing?
- This means the lens was likely designed for DSLRs. Mirrorless gets the benefit of using internal filters.
- Price: it will be cheaper than Sigma, quite a bit cheaper. Due to the tariffs stuff that can change any time, I do not think I am comfortable in disclosing it.
- Image quality is at least as good as Sigma's.
Wait until October.