there are many questions.

In fact, it can be seen that the landlord is making a choice among four shots.

Let's take a look at the shooting purpose of the landlord, insects or small still life. Then, let's analyze these four lenses one by one:

Wei DA35/2.8, which is a macro lens with short focal length, is also a very distinctive lens. But the focal length is short, and the corresponding blurring ability is weakened. This lens is more suitable for shooting some humanistic themes such as flowers and grass. Shooting insects is a bit reluctant.

Pentax DA7/2.4, portrait focal length, but I think it's better to take portraits at home C. The portraits at home P are really yellow and green. If it's not later, it's really not very popular with girls.

Pentax 625, Star Head, the sample is very good, but it is not in focus. In contrast, I'd rather choose 535 or Star 2. Moreover, 625 telephoto shooting insects and so on is not powerful, after all, the magnification is there. In this respect, it is not as good as Wei. The focal length of this head includes 7, but after all, it is only the aperture of F4, so it is not as good as 535.

Pentax Hundred Micro, originally designed for macro, is suitable for shooting insects or small still life. It is also possible to use Baiwei as a guest portrait. Because the focal length is suitable and the aperture is large. The disadvantage is that the focus stroke will be longer and the portrait will be sharper. Of course, this is the reason for the lens design.

to sum up, it is recommended that the landlord be hundreds of meters.

that's all, pure hand-beating, I hope it will be useful to the landlord!