I also have the fully manual Rokinon 2.8 14mm, previously used successfully on Canon 6D exclusively for astro, now wanting to use on R6mkii - and shutter won't fire. I've engaged the 'release shutter without lens', and this seems to work? Aperture ...
Late response, so I hope you've already found a solution. I also have the fully manual Rokinon 2.8 14mm, previously used successfully on Canon 6D exclusively for astro, now wanting to use on R6mkii - and shutter won't fire. I've read the suggestion...
