What is the aperture of the filter?

Lead: Photographic equipment is a general term for cameras, lenses and their related accessories, as well as various equipment and articles related to photographic activities. Consumables, including film, and photographic vests and bags operated by most photographic equipment operators belong to the category of photographic equipment. Look at the filter caliber with me. I hope it will help everyone.

Filter aperture refers to the aperture of the filter diameter. The filter apertures used in digital cameras are mainly 28mm, 30mm, 37mm, 58mm, 74mm and so on. The aperture of different digital cameras is different, so the aperture of external filter is also different. To some extent, the larger the aperture of the filter, the more light can enter per unit area in a single product time.

The thread of the camera lens port is used to connect various filters and external lenses. But the line diameter of different cameras is different. This line diameter is called the filter diameter. When buying a lens, be sure to check whether the filter caliber of the camera is consistent with that of the lens you bought. Only when they are consistent can they be directly connected. Of course, it doesn't matter if it's inconsistent. You can change the aperture of the filter through the connecting ring. Install the adapter ring on the lens, and then install the external lens on the adapter ring.