Macro Extension Tube Ring For Sony E Mount NEX Camera Lens A7 A7R S A5100 A6000 | Электроника

Macro Extension Tube Ring For Sony E Mount NEX Camera Lens A7 A7R S A5100 A6000 | Электроника

Before using the close-up loop, please explain a few questions: (1) The default value of the aperture is the minimum aperture and the maximum aperture. Adjust it before installing the close-up circle, and you cannot adjust it after installing it (except for old lenses with an aperture ring); (2) Automatic focusing is not possible, and manual operation is required; (3) The focusing distance is very close. Generally, the distance between the lens and the object being photographed is only a few centimeters, which requires a lot of manual photography; (PS must be very close, the owner MM personally tested it, if you put 1 or 2 laps It can be a little farther away, but if you make 3 laps, it must be very, very close. It is basically the distance to the subject, and you need a lot of patience. A good film will come out after multiple shots. , After all, the price is cheap and fast-tempered. Don't try the demanding MM. Mind if the novice puts one lap first, then two laps, the technical requirements for 3 laps are higher!) (4) Exposure at a slow speed, and appropriately increase the photo fill light; The close-up ring is installed between the lens and the body (the lens is directly mounted, not the reverse ring), the lens barrel is lengthened, and the principle of skin cavity photography is used to achieve the effect of super macro photography. Many friends ask about the difference between a close-up lens and a close-up adapter ring. The main difference between them is that the close-up lens is based on the principle of a magnifying glass. It is practical and convenient to install directly before the lens. The close-up adapter ring is installed on the lens. Between the camera and the SLR body, you need to manually set the camera, manual focus, the lens should be very close to the object to be photographed when taking pictures. It is generally used for local macro photography, and the macro effect is better than close-up lenses. Use close-up lens without manual aperture, the default aperture is the smallest There is a toggle lock switch on the interface connecting the close-up ring to the lens. When using it, especially when removing the lens, be sure to toggle this switch and turn the lens. Separate the barrel and the lens. Take Canon as an example The close-up ring consists of a total of 5 parts, the body bayonet mount, No. 1 close-up ring, No. 2 close-up ring, No. 3 close-up ring, and lens mount mount. There is nothing to explain about the camera mount adapter and lens mount adapter. When installing, connect one end to the body and the other end to the lens. No. 1, 2 and 3 close-up circles can be used alone or in combination. They can be used alone or in different combinations to achieve the change of the barrel length. The longer the barrel length, the greater the magnification effect. For example, the focal length of the lens is 50MM, and the focusing distance is infinity-the scene within 0.6MM and 0.6M cannot be taken Close-up ring combination Object ratio adjustment range Without connecting ring 1; 0.22---1; 0.33 Add 1 1;0.36----1;0.47 Add 2 1;05----1;0.6 Add 3 1; 1; 0.78--1; 0.89 Add 1+2+3 1;1.20----1;1.31 The close-up ring is a professional thing, a favorite of the manual family. It is not automatically controlled. The close-up ring consists of 5 parts: the lens mount ring, the body mount ring, the 1st mount, the 2nd mount, and the 3rd mount. According to the different combinations of the three branch rings, different magnifications can be achieved.