FOT106
FOT & Draco Series D106, f/6, FL636mm, 2 ED triplet
0.8x Focal Reducer
Model No: RED0.8x
The Founder Optics 0.8× Reducer & Field Flattener is a universal accessory for f/5–f/7 refractors, providing both focal reduction and field flattening. It is particularly designed for FOT86 and FOT106 refractors, delivering sharp stars across the entire 44 mm image circle. Ideal for astrophotographers using full-frame or smaller sensors, it expands imaging possibilities while maintaining excellent edge performance.
Specification:
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Reduction Factor: 0.8×
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Compatibility: Universal for f/5–f/7 refractors; especially optimized for FOT86 / FOT106
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Adapter Threads: Includes one M42 and one M48 threaded adapter, each with M54 threads on the opposite side for flexible camera connection
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Build Material: CNC-machined aluminum, anodized finish
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Image Circle: 44 mm
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Field Correction: Integrated field-flattening capability
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Optical Coatings: Fully multi-coated lenses
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Description
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Specification
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Accessories
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More Information
The 0.8× Reducer with Field Flattener from Founder Optics is universal for f/5–f/7 refractors, and it performs especially well with FOT86 and FOT106 models. It shortens focal length by 20%, broadening the field of view while flattening the image for sharp stars across the full 44 mm image circle.
Fully multi-coated optical elements ensure maximum light transmission, reduced reflections, and high contrast, providing crisp and high-quality astrophotography results.
High-precision optics are housed in a durable, anodized aluminum body for reliability during extended imaging sessions. The included M42 and M48 threaded adapters (with M54 on the opposite side) allow quick switching and compatibility with various cameras or accessories.
** Image Circle: M42 or M48
| Parameter | Details |
|---|---|
| Reduction Factor | 0.8× |
| Compatibility | Universal for f/5–f/7 refractors; especially optimized for FOT86 / FOT106 |
| Adapter Threads | One M42 and one M48 threaded adapter; each has M54 threads on the opposite side for flexible camera connection |
| Build Material | CNC-machined aluminum, anodized finish |
| Image Circle | 44 mm |
| Field Correction | Integrated field-flattening capability |
| Optical Coatings | Fully multi-coated lenses for maximum transmission and contrast |
1) Switchable M42 and M48 threaded adapters (each with M54 threads on the opposite side)
2) Cleaning Cloth
3) Dust Caps
4) Product Card
