Askar 1x Full Frame Flattener for 160APO 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 Askar 160APO comes with two optional premium accessories: a 1.0x flattener and a 0.8x reducer. Introduced here is the 1.0x flattener, which is optimized for the Askar 160APO and expands the telescope's versatility.
The 1.0x flattener does not alter the telescope's native focal ratio. When connected to the Askar 160APO, it maintains a focal ratio of f/7. The flattener corrects field curvature and coma, resulting in flatter field edges and sharper star points.
The 1.0x flattener features a triplet design and supports a 44mm full-frame image circle. The back focus from the M48 thread is the standard 55mm. The front thread is M92×1. On the camera side, it comes with M68×1, M54×0.75, and M48×0.75 adapters for easy connectivity. It also includes a built-in M48×0.75 2-inch filter thread for direct installation and use. The flattener is CNC machined, and both ends are equipped with threaded metal caps to prevent dust when not in use.
Specifications:
- Flattener Parameter: 1x
- Focal Length (after attaching to 160APO): 1120mm (≈ 44.09 inches)
- Focal Ratio (after attaching to 160APO): f/7
- Lens Design: Triplet
- Back Focus: 55mm (≈ 2.17 inches) — from the base of M48 male thread
- Weight: 0.56kg (≈ 1.23 lbs)
- Rear-end Thread Types:
- M68×1
- M54×0.75
- M54×0.75 to M48×0.75 (includes M48×0.75 filter thread inside)
Other Information
- Country of Manufacture: China
The Askar 160APO comes with two optional premium accessories: a 1.0x flattener and a 0.8x reducer. Introduced here is the 1.0x flattener, which is optimized for the Askar 160APO and expands the telescope's versatility.
The 1.0x flattener does not alter the telescope's native focal ratio. When connected to the Askar 160APO, it maintains a focal ratio of f/7. The flattener corrects field curvature and coma, resulting in flatter field edges and sharper star points.
The 1.0x flattener features a triplet design and supports a 44mm full-frame image circle. The back focus from the M48 thread is the standard 55mm. The front thread is M92×1. On the camera side, it comes with M68×1, M54×0.75, and M48×0.75 adapters for easy connectivity. It also includes a built-in M48×0.75 2-inch filter thread for direct installation and use. The flattener is CNC machined, and both ends are equipped with threaded metal caps to prevent dust when not in use.
Specifications:
- Flattener Parameter: 1x
- Focal Length (after attaching to 160APO): 1120mm (≈ 44.09 inches)
- Focal Ratio (after attaching to 160APO): f/7
- Lens Design: Triplet
- Back Focus: 55mm (≈ 2.17 inches) — from the base of M48 male thread
- Weight: 0.56kg (≈ 1.23 lbs)
- Rear-end Thread Types:
- M68×1
- M54×0.75
- M54×0.75 to M48×0.75 (includes M48×0.75 filter thread inside)
The Askar 160APO comes with two optional premium accessories: a 1.0x flattener and a 0.8x reducer. Introduced here is the 1.0x flattener, which is optimized for the Askar 160APO and expands the telescope's versatility.
The 1.0x flattener does not alter the telescope's native focal ratio. When connected to the Askar 160APO, it maintains a focal ratio of f/7. The flattener corrects field curvature and coma, resulting in flatter field edges and sharper star points.
The 1.0x flattener features a triplet design and supports a 44mm full-frame image circle. The back focus from the M48 thread is the standard 55mm. The front thread is M92×1. On the camera side, it comes with M68×1, M54×0.75, and M48×0.75 adapters for easy connectivity. It also includes a built-in M48×0.75 2-inch filter thread for direct installation and use. The flattener is CNC machined, and both ends are equipped with threaded metal caps to prevent dust when not in use.
Specifications:
- Flattener Parameter: 1x
- Focal Length (after attaching to 160APO): 1120mm (≈ 44.09 inches)
- Focal Ratio (after attaching to 160APO): f/7
- Lens Design: Triplet
- Back Focus: 55mm (≈ 2.17 inches) — from the base of M48 male thread
- Weight: 0.56kg (≈ 1.23 lbs)
- Rear-end Thread Types:
- M68×1
- M54×0.75
- M54×0.75 to M48×0.75 (includes M48×0.75 filter thread inside)
Other Information
- Country of Manufacture: China
| Product Status | new |
|---|---|
| Free Shipping Graphic | Free US Shipping |
| Hide Found a better Shipped Price on Frontend? | No |
Askar 1x Full Frame Flattener for 160APO Telescope