What new skills do you need to master about conference photography?

Standard lenses should be selected: the viewing angle of standard lenses is consistent with the human eye. Taking a group photo with a wide-angle lens will have perspective deformation. The front row characters are bigger near the lens head, and the back row characters are smaller away from the lens head. So you can't take a group photo with a wide-angle lens. If you take a group photo with a zoom lens, you should also choose a focal length of 35-50 mm (full-frame camera).

The choice of aperture and shutter speed: the characteristics of group photos are: the figures are still and deep. In order to obtain greater depth of field, small aperture and slow shutter speed are usually used. F/5.6 ~ f/8 aperture should be used for group photos of 20 ~ 30 people; 60 ~ 70 people take pictures with F/8 ~ F/ 1 1 aperture, and more than 100 people take pictures with f/16 aperture. The shutter speed should not be lower than 1/30 seconds, so as to avoid sudden personal jitter during shooting. Of course, in the case of poor light, in order to ensure sufficient depth of field, we have to sacrifice the shutter speed, but generally it cannot be lower than 1/8 seconds.

Use tripod and cable to release: Because taking a group photo requires a large depth of field, a small aperture is often used for shooting, and the shutter speed is slow at this time. In order to prevent "hand shaking" during shooting and affect the clarity of the picture, a tripod must be used to stabilize the camera.