About how to choose an amplifier.

Magnifier either sells scrap iron or collects nostalgia. In short, he is a useless guy who occupies a large area, whether made in China, Russian or German.

Speaking of magnifying head, I still suggest keeping it.

The optical design of magnifying lens is very strict, which exceeds that of ordinary photographic lens, and has high requirements in resolution, distortion, contrast and image field flatness.

Many domestic brands are of average quality, with Qiu Jin and Seagull slightly better.

Nikon magnifiers made in Japan are common in China, with good quality, but few specifications.

As for the products made in Germany, they are the best and the most expensive. For example, the famous products such as Luo Gang, Rotonde, Schneider and rare Zeiss are mostly divided into ordinary head, professional head and APO head.

In the past, the traditional amplification was sky-high. Today, Wang Xietang of the old society flies into the homes of ordinary people.

Cherish it.

Because the original intention of the magnifying head is to emphasize the smoothness of the image field, which is the same as that of the macro lens, they can be connected to the camera through the close-up leather cavity for macro shooting, and the effect will be very professional. Some experts can also connect a large or medium format camera through the leather cavity for off-axis shooting, but it is relatively troublesome to use.

In short, they are all good things, especially those from Germany. Don't throw them away.