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NAKOH 60GT 1.0× Field FlattenerA 1. 0 field flattener designed specifically for the NAKOH 60GT, unlocking its full frame imaging potential by correcting field curvature while preserving the telescopes native focal length and f 6 focal ratio. Package Contents 1. 0 Flattener User Manual & Warranty Card Specifications Product Name 60GT Specific 1. 0 Flattener Dimensions (W D H) 112 75 75 mm Magnification 1. 0 Optical Design Triplet Effective Focal Ratio f 6 Image Circle 44mm Back
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A 1.0× field flattener designed specifically for the NAKOH 60GT, unlocking its full-frame imaging potential by correcting field curvature while preserving the telescope’s native focal length and f/6 focal ratio.

Package Contents

NAKOH 60GT 1.0× flattener with protective caps
1.0× Flattener
NAKOH 60GT 1.0× flattener instruction manual and warranty card
User Manual & Warranty Card

Specifications

Product Name 60GT Specific 1.0× Flattener
Dimensions (W × D × H) 112 × 75 × 75 mm
Magnification 1.0×
Optical Design Triplet
Effective Focal Ratio f/6
Image Circle Ø44mm
Back Focus 55mm
Connection Threads Telescope side: M68×1
Camera side: M48×0.75, M54×0.75
Weight 0.53 kg
Standard Accessories 1.0× Flattener ×1
Front & Rear Caps ×2
Instruction Manual ×1
Warranty Card ×1

Design Features

Uniform Flat Field

Precisely corrects field curvature, delivering evenly sharp and round stars from the centre to the edges of the frame.

Spot diagram showing field flattening performance

Bright, Vivid Imaging

Maintains over 95% relative illumination across full-frame sensors, effectively suppressing vignetting and preserving image brightness.

Relative illumination curve for full-frame imaging

Native Focal Ratio

Preserves the 60GT’s original 360mm focal length and f/6 focal ratio, ensuring optical performance remains fully optimised.

Nakoh 60GT with 1.0× flattener installed

Full-Frame Optimised

Triplet optical construction ensures a flat field and sharp stars from centre to corner when used with full-frame cameras.

NAKOH 60GT 1.0× flattener technical diagram

Astrophotography Samples

NGC 6960 (Veil Nebula) — ZWO ASI6200MM Pro
Veil Nebula captured with NAKOH 60GT and 1.0× flattener
M31 (Andromeda Galaxy) — ZWO ASI2600MC
Andromeda Galaxy captured with NAKOH 60GT and 1.0× flattener

Product Size & Connection Diagrams

NAKOH 60GT 1.0× flattener labeled components
NAKOH 60GT 1.0× flattener dimension diagram
Imaging Mode Connection Diagram
Connection diagram for NAKOH 60GT 1.0× flattener imaging setup

NAKOH 60GT 1.0× Field Flattener

Item no : 19137086229
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US$ 149.50
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