i have been wanting to shoot some, looking at the cinestill one, but i may be wrong i believe its around 200~250iso native, so was this shot for 800 iso?

wow really cool. very grainy, but beautifully grainy. do you happen to know the settings for the flower pic (/ what lens you used im curious)?

maybe try having a silica gel packet stored with the lens? although i believe that more for helping/preventing fog, not haze. i would try to make do for now, and eventually see about a paying for professional cleaning, or DIY and take the a further loss if u damage it. if it cant be solved with a lens wipe on each side, then its likely the inside elements :(