How much should the focal length of Nikon d700 conference photos be adjusted?

1, because the meeting room is generally dark, so the ISO sensitivity should be set as high as possible, and the D700 camera can generally be set at 1600 or 2200.

2, because the conference room is generally small, and sometimes it is necessary to shoot big scenes. So you have to choose a wide-angle lens to shoot, usually with the widest end (the focal length depends on the lens you installed). The commonly used wide-angle end can be less than 24mm, such as 16 or14 mm. Please adopt the above if it helps you.