What is macular overlay focusing?

Macular overlay focusing is a mechanical focusing method, generally used on rangefinders. One of the ranging holes is used for the viewfinder, and the other is a smaller circular (or There is a yellow color filter installed on the ranging hole (square). When focusing, turn the lens and focus will be completed as long as the two stacked images in the ranging yellow frame overlap.

The macula is a small yellow dot in the middle of the optical viewfinder. After controlling the aperture and shutter speed, place the place where you want to focus accurately within the range of the macula. You will see two shadows. Turn the zoom ring appropriately to make the two shadows overlap, and the focus is completed. Then, compose the picture, press the shutter, and a photo is completed.

Extended information

Many photographers believe that macular focus is more accurate than the matte focus and prism focus of manual SLRs, and is more convenient for blind shooting.

In fact, macular focus is an exquisite Chinese translation of the focusing method of rangefinder cameras. In English, the focusing method of rangefinder cameras is generally called "rangefinder focus".

However, the Chinese translation of "macular focus" is very vivid. It not only cleverly points out the action of making the image of the yellow area coincide with the images of other areas during the focusing process, but also highlights the eye structure of the macula. Because the macula is the point of sharpest vision in the eye structure.