Fstoppers has published a useful summary of ultra wide angle (weitwinkel) lenses for Sony cameras. They discuss the Sony FE 14mm G Master, FE 24mm G Master, FE 20mm G, Sigma 20mm DG HSM Art, Tamron SP 20mm Di III OSD, and Venus Optics 15mm FE Zero-D. All, apart from the last, are autofocus lenses. Inevitably, the summary does not discuss their performance behind a dome port.