|
FRA400C Parameters |
|
Aperture size |
72mm |
|
Focal length |
400mm |
|
Focal ratio |
f/5.6 |
|
Objective lens |
Quintuplet dual ED air-spaced APO |
|
Format specifications |
44mm |
|
Aperture blades |
17 pieces |
|
Graded Aperture |
f/5.6-f/22 |
|
Closest Focus Distance |
5m |
|
Focusing mode |
Manual focus |
|
Filter Diameter |
M82 |
|
Total length |
370mm (inclulding dew shield); 420mm (without dew shield) |
|
OTA weight |
2.68kg |
|
Total weight (including handle & dovetail plate) |
3.18kg |
|
Rear-end adapter |
M72/M54/M48(with M48×0.75 filter thread) |
|
Rear-end connection distance |
Support 50-60mm range (Recommended connection length is 55mm) |
|
Standard package items |
1.25inch/2inch adapter,a manual |
