Multi-Reducer 0.85X-S (Short)

Sharper Stars for Small-Aperture Fluorites

The Takahashi Multi Reducer 0.85×-S is a high-precision, 3-group, 4-element optical reducer designed specifically for the FS-60C series. Engineered to deliver coma-free, full-frame coverage, this reducer shortens the focal length from 355 mm to 300 mm (f/5.9 → f/5.0) while maintaining outstanding illumination across the field. The result: beautifully round, pinpoint stars and crisp detail from edge to edge.

Optimized for telescopes with small focusers, the Multi Reducer 0.85×-S is the first full-frame-compatible reducer for Takahashi’s compact fluorite systems — ideal for capturing large nebulae and open clusters with stunning uniformity and color fidelity.

Key Specifications

• Optical Design: 3 groups, 4 elements

• Compatible Models: FS-60CB / FS-60CP / FS-60CBX / FS-60C / FS-60Q

• Reduction Factor: 0.85×

• Effective Focal Length: 300 mm (f/5.0)

• Image Circle: φ44 mm (full-frame compatible)

• Telescope-Side Thread: M55.9 × 0.75

• Camera-Side Thread: M52 × 0.75

• Dimensions (Ø × L): 60 mm × 55.8 mm

• Weight: ~0.2 kg

• Includes a dedicated CA ring for FS-60C series

Note: When used with the discontinued FS-60C, the Camera Angle Adjuster S cannot be used simultaneously due to focus-position constraints.