MC Mir-20M 20mm f/3.5 Lens

Description:

MC Mir-20M lens is intended for SLR camera with 24x36mm frame format and 45.5mm flange/film distance. The lens is fitted with an instant opening diaphragm. It is equipped with a set of light filters.

MC Mir-20M 20mm f/3.5 Lens Specifications:

Jolos ^TM Mount Adapter Sony Alpha (DSLR-A100 )/Minolta AF/M42

For using auto focus Sony Alpha/Minolta cameras with M42 lenses (Praktica, Zenit). Metric scale M42 keeps its meanings due to compensation of the flange bases difference. Therefore focusing can be to infinity.

You should remember that the pusher with the fixed ring doesn’t work, so diaphragm control of the lens is set manually.

Bear in mind that aperture pusher is not pushed. It is possible to use Macro rings and other accessories.

Settings:

1. Put red marks of the adapter and lens collar together.
2. Turn the adapter clockwise till the fixative click.
3. Set M42 lens.

Removing:

To remove the adapter you should unpress fixative pin and turn the adapter anticlockwise.

Note:

Working with M42 lenses acknowledgement of the focusing with green light is not made. The aperture is not set. Expo-modes:

1. P (program) – identical to Av mode;
2. Tv (flash priority) – doesn’t work;
3. Av (diaphragm priority) – works as usual;
4. M (manual) – aperture and flash are changed. Inaccuracy of exposure defining is indicated by expo-correction.

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