Leica M691

Leica M691 Surgical Microscope

The Leica M691 is a versatile surgical microscope designed for neurological, spinal, and ophthalmic surgeries. Recognized for its high-precision optics, motorized controls, and ergonomic design, the M691 delivers exceptional clarity and red reflex visualization, making it ideal for detailed microsurgical procedures.

Equipped with electrically adjustable zoom and focus, the M691 allows seamless magnification changes via a footswitch, ensuring smooth, hands-free operation. Its high-depth imaging enhances visibility, while the halogen lighting system provides consistent illumination for critical surgical applications.

Key Features

• Electrically controlled zoom and focus, adjustable via footswitch
• Magnification range from 7x to 36x, offering continuous fine adjustments
• High-end optics with an extended depth of field for superior clarity
• 45-degree fixed binoculars for optimal surgeon comfort
• Interchangeable focal length lenses, with a standard 250mm objective lens
• Dual brake system in the microscope base for secure positioning
• Spring-balanced main arm for smooth and precise adjustments
• 50W halogen illumination, ensuring bright, shadow-free visualization
• UV filter included, protecting against potential light exposure risks

Optical and Functional Specifications

• Binocular type: 0-180° inclinable, f=170mm
• Optional binocular angles: 10-50°; f=170mm
• Objective lens options: 175mm, 200mm with red reflex enhancer
• Magnification: Motorized 1:5 ratio
• Focus range: Motorized with 50mm travel distance
• Eyepieces: 10×21 Widefield
• Pupillary distance adjustment: 55mm to 75mm
• Light source: Halogen 12V 50W
• Illuminated field size: 65mm

Power and Stability

• Power supply: 110V – 240V, 50 – 60 Hz
• Stable dual-brake system for secure, steady positioning during surgery

The Leica M691 surgical microscope is a high-performance system that offers advanced optical precision, ergonomic functionality, and motorized adjustments, making it a trusted choice for neurological, spinal, and ophthalmic procedures.