vivaphil

Hi Tweak, I was searching the web for how wide you can go with the Kowa 16-h and came across this old conversation. So I bought the Kowa 16-h. But if I want an aspect ratio of 2.39:1 (cinemascope) I get heavy vignette with the nfd 24mm 2.8 on my GH5. Even with the nfd 28mm 2.8. Am I missing something here? Or does the GH4 crop in 4:3 mode compared to the GH5? Thanks