How many telephoto lenses do you need to use a tripod in a traditional SLR camera?

I think using a tripod generally depends on two aspects.

First, the shutter time is long.

Second, telephoto

Among them, the long shutter time can only be said to be above 1/60, but everyone's conditions are different. Some hands are steady, and some hands are easy to shake, depending on the specific situation.

The focal length is the same. The telephoto just amplifies the jitter at the fuselage end and displays it on the film. This is clear when you look at the image of the imaging principle. It also moves at a certain angle. The farther the distance, the longer the arc curve that the point passes. But how long it takes to reflect it also varies from person to person.

This is only part of the condition, you need a tripod, you need to see:

First, is the photographer holding the camera in the right posture, such as a small DC (the same is true for some people using SLR). Many people just hold it forward with one hand or two hands, which makes it easy to shake. The correct posture is to stick your eyes on the frame, hold your body in one hand, hold the glasses in the other and clamp your hands. When you press the shutter, don't move your hand and press it lightly with your finger. At present, some small DCs have only one big screen to watch, and they can only stretch their hands forward when shooting. Originally, the film made by this machine was easy to shake, but now it is more obvious.

Second, the requirements of photography effect. If you don't use a tripod, or don't use a tripod well, the picture will actually be a bit empty. The key depends on how high your requirements for image quality are. If there is an impact, or if the requirements for image quality are still relatively high, use a shelf.

Third, can you be good at repairing things around you? Such as railings, telephone poles, tables, etc. It is useful when it is inconvenient to bring a tripod or when you forget to bring it.

Finally, it is emphasized that telephoto has a great influence on imaging jitter, which can be seen from the wide application of anti-shake technology in telephoto cameras or telephoto lenses.

Generally speaking, the requirements of the job determine everything. If there is such a need, use a tripod.