Sharpstar Full Frame 1x Flattener for Sharpstar 61EDPHIII Telescope

Stock count is accurate & shown in real time.
- This item is out of stock.
- Sign up for back-in-stock alerts to be notified when this item becomes available.
- This item is out of stock.
- We have no ETA from the manufacturer at this time.
- Sign up for back-in-stock alerts to be notified when this item becomes available.
Lower 48 States:
Orders over $50 ship free within the Lower 48 using a carrier and service we select based on your items and delivery location. Faster shipping options may be available at checkout.
U.S. Outside the Lower 48 (AK, HI, PR):
Free shipping on orders over $50 applies to many—but not all—items. Add items to your cart and enter your ZIP code to see available shipping options and any costs.
International Orders:
Free shipping does not apply to international orders. You’ll see available shipping options and costs during checkout. Some items can’t be shipped internationally due to size or manufacturer restrictions. Duties, taxes, brokerage fees, and tariffs are not included and are the customer’s responsibility.
The Sharpstar Full Frame Flattener for the 61EDPIII Telescope: One end of the thread is M68x1, connected to the focuser; the other end of the thread is M48x0.75 and has a built-in 2" filter thread. The back focus is 55mm. If it needs to be extended, the adapter can be screwed down to reveal the M54x0.75 male thread, and the back focus becomes 81.5mm. The flattener adopts a triplet air-spaced structure, the peripheral light reduction control is excellent, can effectively improve the curvature of the field, improve the corner image quality, and reduce aberrations, so that users can take clearer astronomical photos.
Specifications:
- Application: 61EDPHIII
- Image circle: 44mm
- Lens: Triplet air-spaced structure
- Back focus: 55mm (including the M48 thread)
- Coating: full-surface multi-layer coating
- Weight: 0.4kg
Other Information
- Country of Manufacture: China
The Sharpstar Full Frame Flattener for the 61EDPIII Telescope: One end of the thread is M68x1, connected to the focuser; the other end of the thread is M48x0.75 and has a built-in 2" filter thread. The back focus is 55mm. If it needs to be extended, the adapter can be screwed down to reveal the M54x0.75 male thread, and the back focus becomes 81.5mm. The flattener adopts a triplet air-spaced structure, the peripheral light reduction control is excellent, can effectively improve the curvature of the field, improve the corner image quality, and reduce aberrations, so that users can take clearer astronomical photos.
Specifications:
- Application: 61EDPHIII
- Image circle: 44mm
- Lens: Triplet air-spaced structure
- Back focus: 55mm (including the M48 thread)
- Coating: full-surface multi-layer coating
- Weight: 0.4kg
The Sharpstar Full Frame Flattener for the 61EDPIII Telescope: One end of the thread is M68x1, connected to the focuser; the other end of the thread is M48x0.75 and has a built-in 2" filter thread. The back focus is 55mm. If it needs to be extended, the adapter can be screwed down to reveal the M54x0.75 male thread, and the back focus becomes 81.5mm. The flattener adopts a triplet air-spaced structure, the peripheral light reduction control is excellent, can effectively improve the curvature of the field, improve the corner image quality, and reduce aberrations, so that users can take clearer astronomical photos.
Specifications:
- Application: 61EDPHIII
- Image circle: 44mm
- Lens: Triplet air-spaced structure
- Back focus: 55mm (including the M48 thread)
- Coating: full-surface multi-layer coating
- Weight: 0.4kg
Other Information
- Country of Manufacture: China
| Product Status | new |
|---|---|
| Free Shipping Graphic | Free US Shipping |
| Hide Found a better Shipped Price on Frontend? | No |

Sharpstar Full Frame 1x Flattener for Sharpstar 61EDPHIII Telescope


















