Askar SQA85
High-quality quintuplet air-spaced SD glass Petzval Astrograph.
Product introduction
Specifications
|
Parameters |
||
|
Aperture size |
85mm |
|
|
Focal length |
408mm |
|
|
Focal ratio |
f/4.8 |
|
|
Objective lens |
Quintuplet petzval APO（including two pieces of SD glass） |
|
|
Total length |
403mm(when the dew shield is contracted) |
|
|
Format specifications |
Full-frame |
|
|
OTA weight |
3.64kg |
|
|
Gross weight（including tube ring and dovetail plate） |
4.62kg |
|
|
Rear-end thread type |
M48/M54/M68 adapters |
|
|
Rear-end connection distance |
Support 40-70mm range (Recommended connection length is 55mm) |
|
|
Standard package items |
a SQA85 OTA, an Oxford cloth case |
|
Original: $265,999.00
-70%$265,999.00
$79,799.70Description
High-quality quintuplet air-spaced SD glass Petzval Astrograph.
Product introduction
Specifications
|
Parameters |
||
|
Aperture size |
85mm |
|
|
Focal length |
408mm |
|
|
Focal ratio |
f/4.8 |
|
|
Objective lens |
Quintuplet petzval APO（including two pieces of SD glass） |
|
|
Total length |
403mm(when the dew shield is contracted) |
|
|
Format specifications |
Full-frame |
|
|
OTA weight |
3.64kg |
|
|
Gross weight（including tube ring and dovetail plate） |
4.62kg |
|
|
Rear-end thread type |
M48/M54/M68 adapters |
|
|
Rear-end connection distance |
Support 40-70mm range (Recommended connection length is 55mm) |
|
|
Standard package items |
a SQA85 OTA, an Oxford cloth case |
|
