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- Nowy
High-quality quintuplet air-spaced SD glass Petzval Astrograph.
- Aperture: 70mm
- Focal Length: 336mm
- Focal Ratio: F4.8
- Format specification: Full Frame
- Optical Design: Quintuplet Petzval APO (Two pieces of SD glass)
- Dual speed focusing mechanism
- Rotating mechanism
- Internal 2" filter thread
- Extractable dew-shield
- Weight: 2.68 kg
- Carrying oxford cloth case
High-quality quintuplet air-spaced ED glass Petzval Astrograph.
The SQA70 is a 70mm aperture astrograph with a 336mm focal length and a native focal ratio of 4.8.
The SQA70 lens has a quintuplet air-spaced design that includes 2 pieces of ED glass and supports full-frame imaging. The SQA70 has great star performance, which can refer to the data we published.
The SQA70 is a petzval lens structure, due to the self-flattened design, users do not need to calculate specific back focus.
We have designed many mechanical details for the SQA70 to further optimize the user experience.
Specifications
Aperture size |
70mm |
|
Focal length |
336mm |
|
Focal ratio |
f/4.8 |
|
Objective lens |
Quintuplet Petzval APO(including two pieces of ED glass) |
|
Total length |
332mm (when the dew shield is contracted) |
|
Format specifications |
full frame (44mm) |
|
OTA weight |
2.68kg |
|
Gross weight (including tube ring and dovetail plate) |
3.5kg |
|
Rear-end thread type |
M42/M48/M54 adapters |
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Rear-end connection distance |
Support 37-68mm range (Recommended connection length is 55mm) |
|
Standard package items |
a SQA70 OTA, an Oxford cloth case |
- System teleskopowy
- Tylko tuba optyczna (OTA)
- Rodzaj teleskopu
- Refraktor apochromatyczny*~Astrograph
- Seria teleskopów
- SQA
- Typ soczewki teleskopu
- Pięciornik (5 soczewek)
- Przysłona teleskopu (mm)
- 70mm
- Ogniskowa teleskopu (mm)
- 336mm
- Telocalope Focal Ratio (F)
- F4.8