
If you have a SLR camera and adapter rings, make a photocopy knizhnoi articles, magazine pages, or other reproductions not accounting for labor. However, the camera “Zenit-GP” with lens “Industar-50” for it is not very convenient: it is not easy to find him adapter rings with thread M39. 1, and make them very difficult. But, it turns out, to change the focal length of this device is possible without transition rings. Remove the lens and then unscrewing the four screws (3),— fpanel (1), on which the fastened to the vessel body (2). Turning the flange by the other side, again secure it in place with screws and screw in the lens. Now focal length will allow you to take pictures with 0.35 m, which is sufficient for reproduction.
A. NIZOVTSEV
Recommend to read
ANOTHER FOLDABLE
Such desks there are a number of things. One of them is the ability easily, disassembled for parts, to move from place to place, for example to put in the garden, in the yard. Younger...
PROLONG THE LIFE OF THE BIKE
Associate Professor of the Department "Technology of mechanical engineering" of the Mari state technical University M. L. Popov, having a great experience with Bicycle sport, sent a...