High-quality quintuplet air-spaced ED glass Petzval Astrograph.
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(with M48×0.75 filter thread)/M54 adapters | |
Rear-end connection distance | Support 37-68mm range (Recommended connection length is 55mm) | |
Standard package items | a SQA70 OTA, an Oxford cloth case | |
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.
