What is the minimum aperture (maximum F value) of Panasonic LX5?

I'm sorry to tell you that the minimum aperture of LX5 is only F8 in the wide-angle segment and F 1 1 in the telephoto segment. In fact, all DC minimum apertures can only reach here, which is related to the imaging principle of CCD sensor and cannot be made too small.

When the aperture is small, there is an optical physical phenomenon that interferes with the normal imaging of the picture, that is, the diffraction of light. The more light diffracts through a sharp edge, the more serious the interference is, and the smaller the aperture is, the more its diffraction will affect its final imaging, which is also related to the area of the camera photoreceptor. The photoreceptors (CMOS or CCD) of small DC are relatively small. When the aperture is as small as F8, the picture degradation caused by diffraction is very serious, so the minimum aperture of a small DC is generally not less than F8, not that it cannot be made small, but that the minimum imaging effect is too poor.

The minimum aperture of a SLR camera lens can be F22, which belongs to a special starlight lens.

I tried to use LX5, and the aperture can be adjusted to F5.6 to achieve the starlight effect. When it reaches F8, the effect is obvious, especially for small lights. Let me give you a reference.

By the way, if you want the starlight effect, you have to use a tripod. In F8, the shutter speed is very slow, and it takes more than 2S exposure time.