Quintuplet air-spaced SD glass Petzval astrograph, which can be used for astrophotography and daily photography.
| SQA55 Parameters | ||
| Aperture size | 55mm | |
| Focal length | 264mm | |
| Focal ratio | f/4.8 | |
| Objective lens | Quintuplet petzval APO（One piece of SD glass, one piece of ED glass） | |
| Format specifications | 44mm | |
| Aperture blades | 14 pieces | |
| Graded Aperture | f/4.8-f/22 | |
| Closest Focus Distance | 5m | |
| Focusing mode | Manual focus | |
| Filter Diameter | M67 | |
| Total length | 316mm (inclulding dew shield); 244mm (without dew shield) | |
| OTA weight | 1.84kg | |
| Total weight (including handle & dovetail plate) | 2.18kg | |
| Rear-end adapter | M48*0.75 (with M48×0.75 filter thread) | |
| Rear-end connection distance | Support 50-60mm range (Recommended connection length is 55mm) | |
| Standard package items | a SQA55 OTA, a military-grade waterproof hand-carrying case | |
| Product Size Diagram |
| Promotional Video·Deep Space Astronomy |
| Promotional Video·Landscape Photography |
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For all orders exceeding a value of 100USD shipping is offered for free.
Returns will be accepted for up to 10 days of Customer’s receipt or tracking number on unworn items. You, as a Customer, are obliged to inform us via email before you return the item.
Otherwise, standard shipping charges apply. Check out our delivery Terms & Conditions for more details.
