Photography problems, shutter slowdown effect

When taking portraits, slow shutter speeds are rarely used. Even if you use a tripod, there is no guarantee that the model will be still.

The kind of effect you mentioned, generally speaking, if there is no special creative need, it should be a failure in shooting. When shooting portraits? Generally speaking, the focus is accurate, the subject is clear, and there is no ghosting or ghosting. The situation is better.

As for when you say photographing luminous objects into line shapes, do you mean light painting?

If so, in this case, a small aperture and a slow shutter are usually used. If you want to add a character, you can consider the character standing in a certain position for a long time, but this will not be too clear and will be hazy. , so you can also consider adding some flash lights reasonably in the later stage of exposure? As for the specific parameters, you need to try several groups according to the scene light to find more reasonable exposure data.

There is also a kind of slow shutter that feels similar to the picture below. This is a kind of creation. This picture was taken at a New York train station. It is quite impressive. If you take this kind of picture first , I also provide you with parameters: f3.5, 1/5s, ISO200. Of course, parameters do not mean everything. You can use this as a basis to try more and find a solution that can express your thoughts well.

In addition to these, the post-production of photography works is also very important. Learning more PS techniques will also be of great help to you. Many photos will be qualitatively improved after post-production.

If you like photography, you can consider going to a SLR bar to communicate with your friends. Compared to photography bars, SLR bars are quite popular and it is easier for novices to find their place.