Leica M205 FA user manual Maximum Compatibility, Objectives, Tubes, Eyepieces

Maximum Compatibility

Leica engineers were careful to ensure that the new Leica M series—like its predecessors— remains compatible with existing series. This means that objectives, bases, tubes and so on can be reused.

Objectives

All new objectives of the Leica M series are parfocal, meaning that when used with the objective nosepiece, they can be replaced while keeping the specimen in perfect focus.

If you prefer, you can continue to use the previ- ous Leica objective series. In this case, parfocal- ity is no longer guaranteed.

Tubes

The interface between the optics carrier and the tube has remained the same, so existing tubes fit the new M series. The new tubes are designed for eyepieces with field number 23, while the predecessor models were only designed for field number 21, resulting in a smaller object field.

Eyepieces

However, the new M-series eyepieces have an audible and tangible click to provide immedi- ate feedback in case of accidental adjustment.

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