Original: $2,828.37
-70%$2,828.37
$848.51The Story
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 |
|
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
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 |
|
