Viewing Tube Adjustment

Adjust the eyetubes

1.Adjust the tubes to your interpupillary distance. Fold or unfold the eyetubes to decrease or increase the distance between the eyepieces until you see one illuminated circle.

The viewing tubes maintain a constant tube length for all interpupillary settings.

This means that a change of interpupillary distance does not affect parfocality, magnifica- tion, or calibrations that depend on magnifica- tion.

Leica EZ Viewing Tube

ϘϘ If you are using a Leica EZ viewing tube, which has the eyepieces integrated with the eyetubes, no additional adjustments are necessary. Be sure you are wearing your eyeglasses or contact lenses.

ϘϘ If you have a Leica DM750 with stan- dard illumination (without Koehler field diaphragm), continue with the "Oil Immer- sion Technique" section on page 40.

ϘϘ If you have a Leica DM750 with Koehler field diaphragm, continue with the "Koeh- ler Configuration" section on page 38.

Standard Viewing Tube with Two Fixed Eyepieces

ϘϘ If you are using a standard viewing tube with two fixed eyepieces (no focusing eyepieces), no additional adjustments necessary. Be sure you are wearing your eyeglasses or contact lenses.

ϘϘ If you have a Leica DM750 with stan- dard illumination (without Koehler field diaphragm), continue with the "Oil Immer- sion Technique" section on page 40.

ϘϘ If you have a Leica DM750 with Koehler field diaphragm, continue with the "Koeh- ler Configuration" section on page 38.

Standard Viewing Tube with One or Two Focusing Eyepieces

If you are using a standard viewing tube with one or two focusing eyepieces, you need to make some adjustments.

1. Set the focusing eyepieces to "0".

Leica DM750

Manual

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Leica DM750 manual Viewing Tube Adjustment, Adjust the eyetubes, Leica EZ Viewing Tube