Surgical microscope having a connection region for attaching a protective glass module

A surgical microscope, comprising:

• an image capture unit having an image sensor;
• a detection beam path defined from an object region to the image sensor of the image capture unit;
• an image processor connected to the image sensor;
• a connection region configured for attaching a protective glass module with an objective protective glass,
• wherein the connection region is configured such that, in an appropriate protective glass module which is attached to the connection region, the objective protective glass is inserted into the detection beam path,
• wherein the image sensor has a detection region,
• wherein the detection region has a used detection region for capturing the object region,
• wherein the detection region has a partial detection region, which is not assigned to the used detection region,
• wherein the image capture unit is configured such that a detail of the protective glass module with the objective protective glass is capturable by the partial detection region of the image sensor when the protective glass module with the objective protective glass is arranged at the connection region,
• wherein the image processor is configured to generate a signal when the objective protective glass is detectable by an evaluation of image data of the partial detection region of the image sensor.