Specification
| Product Name |
60GT Specific 0.65× Reducer |
| Dimensions W×D×H: | 128 × 72 × 72 mm |
| Magnification | 0.65× |
| Optical Design | Quadruplet (incl. 1× SD Glass [made in Japan]) |
| Effective focal ratio | F3.9 |
| Image Circle | φ44mm |
| Back Focus | 55mm |
| Mount Thread Standard | Telescope side: M68×1 / Camera side: M48×0.75, M54×0.75 |
| Weight | ≈0.58kg |
| Standard Accessories |
0.65× Reducer × 1 Front & Rear Caps × 2 Instruction Manual × 1 Warranty Card × 1 |
Design Features❶ Fast Focal Ratio
When used with the 60GT, it accelerates the focal ratio from f/6 to f/3.9, dramatically reducing exposure time and boosting efficiency in deep‑sky astrophotography. The effective focal length shortens to 234mm, widening the field of view to make capturing large deep‑sky objects—such as the Orion Nebula (M42), Andromeda Galaxy (M31), and North America Nebula—more accessible than ever.
❷ Uniform Flat Field
Precisely corrects field curvature and coma to deliver uniformly sharp, round stars across the entire 44mm full‑frame image circle—from center to edge.
❸ Advanced Optics Design
Incorporates a quadruplet lens design that includes one SD glass element (made in Japan). This configuration effectively suppresses chromatic aberration, ensuring exceptional image quality with high contrast and clarity.
〈Object〉 IC：M45 photographed by：Qiang
equipments：NAKOH 60GT+Specific 0.65× Reducer camera：ZWO ASI2600MC
❶ Front Cap: Protects against dust and physical damage to the lens
❷ 60GT 0.65× Reducer Body
❸ M68 to M54 Adapter: end-interface is M54 male thread.
❹ M54 to M48 Adapter : end-interface is M48 male thread.
❺ Rear Cap: Protects against dust and physical damage to the lens.
【Product Size Diagram】
【Connection Diagram】
* Imaging Mode
