How to shoot a ray of sunshine

Whether the SLR is used or not has nothing to do with the equipment.

One is whether you really understand the reason for this phenomenon.

The other is whether you have such luck.

Besides contrasting the background, the most important reason is the scattering of light in the air. Usually, only when the number of suspended particles in the air reaches a certain level, after the light passes through, the suspended particles scatter the light so that you can see it and the camera can see it. At this time, you can shoot with your mobile phone. For example, in a foggy morning in winter, or at noon, light enters a darkroom that has just finished sweeping the ground.

If the air is bad and nothing floats or sinks, it will be miserable and nothing can be seen.

Laser can't see the transmission path in a clean laboratory. On earth, the sky glows because the atmosphere scatters sunlight. In space, because there is no atmosphere, it can't be scattered, so it is dark all around.

The second factor is easy to say, good luck!