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Askar 71F 0.75x Reducer Triplet Design Supports a 44mm Full-Frame
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US$54.00 cheaper than the new price!!
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Used US$36.00
Product details
| Management number | 208571913 | Release Date | 2026/03/22 | List Price | US$36.00 | Model Number | 208571913 | ||
|---|---|---|---|---|---|---|---|---|---|
| Category | |||||||||
- The 0.75x reducer can bring Askar 71F's focal ratio down to F5.2. This is a standard reducer with field flattening capabilities as well.
- A shorter focal ratio allows the OTA to have a wider field of view and faster exposure times, making it suitable for capturing large areas of nebulae, star clusters, and faint, fast-moving celestial objects.
- The 0.75x reducer adopts a triplet design and supports a 44mm full-frame image circle. The overall weight is 0.23 kg. The back focus from the M48 thread is a standard 55mm. Both end threads are M59*1.
- The 71F photographic extension tube has two sizes of M54*0.75 and M48*0.75 adapters, which can be directly and easily connected to the 71F 0.75x reducer for use.
- At the same time, the adapter has a built-in M48*0.75 2-inch filter thread, which can be directly installed and used. The overall CNC machined, both end threaded metal caps prevent ash when not in use.
| Manufacturer | Askar |
|---|---|
| Item model number | Askar 71F 0.75x Reducer |
| Product Dimensions | 1.5 x 1.5 x 2 inches |
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