Options. 07-28-2023 09:57 PM. I had posted a wrong link to your camera, I see you have a 1D MarkII, not a 1DX MarkII. When I try to download the firmware for your camera, the download link goes to a Canon Japan page that is not a firmware download link, so something is broken with the download link for your firmware. -Bob-. Vay Tiền Trả Góp Theo Tháng Chỉ Cần Cmnd.

canon 1d mark iv firmware update