MEADE Series 4000 6.3 Focal Reducer / Flattener JAPAN (Pre-owned)

MEADE Series 4000 6.3 Focal Reducer / Field Flattener – Made in Japan

Made in Japan with high-quality optics, this versatile accessory shortens your telescope’s focal length by nearly 37%, providing wider fields of view and significantly shorter exposure times—perfect for capturing extended celestial objects such as nebulae and galaxies. Simultaneously, it flattens the field of view, minimizing optical distortion and improving edge-to-edge sharpness, especially critical for imaging.

Whether you're an amateur stargazer or a seasoned astrophotographer, this focal reducer is a must-have tool that maximizes your Schmidt-Cassegrain or ACF telescope's versatility.

Key Features & Specifications:

• Model: Meade Series 4000 f/6.3 Focal Reducer / Field Flattener

• Optical Design: 4-element, multi-coated optics (Japan-made glass)

• Focal Ratio Reduction: Reduces from f/10 to f/6.3 (approximately 0.63x)

• Field Flattening: Improves edge sharpness for imaging

• Compatibility: Designed for Meade and Celestron Schmidt-Cassegrain telescopes (SC/ACF models)

• Threading: Standard SCT rear cell threads (2"–24 TPI)

• Applications: Visual observation and astrophotography

• Build: Precision-machined aluminum housing with black anodized finish

• Made in: Japan – renowned for superior optical craftsmanship