Sunlight will result in eye damage or blindness. Very interesting eclipse photographs can be taken with ordinary cameras having standard focal lengths, particularly at totality. Techniques for photographing the solar eclipse are different from another celestial objects. Because of variation of brightness of the Sun during partial phase to totality, unless a camera, film , tripod, suitable filter also important thing to prevent damages of your equipment and your eyes especially.
Important factor is a focal length of a camera.
Standard camera has a focal length equal 50mm that produces 0.5mm image of film. To show the Sun's disk reasonably large, you need a lens or telescope with a longer than 500 mm in focal length. Tripod and cable release also need for this case of lens. To calculate diameter of the Sun on film, divide the focal length into 109. At higher magnifications, blurriness due to the Sun's motion might be a problem.