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Specs.
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Specification |
ODK10 |
ODK12 |
ODK14 |
ODK16 |
Primary mirror diameter |
250mm |
300mm |
350mm |
400mm |
Focal length |
1700mm |
2040mm |
2380mm |
2720mm |
Focal Ratio |
f6.8 |
f6.8 |
f6.8 |
f6.8 |
Tube Weight (inc. |
12kg |
19kg |
26kg |
36kg |
Tube Diameter |
300mm |
350mm |
400mm |
450mm |
Tube Length |
475mm |
615mm |
700mm |
820mm |
BFD (Back Focal |
213mm |
218mm |
210mm |
216mm |
Tube Material |
Carbon fibre sandwich |
Carbon fibre sandwich |
Carbon fibre sandwich |
Carbon fibre sandwich |
Secondary Size |
96mm |
120mm |
136mm |
152mm |
Mirror Cell |
Honeycombe CNC |
Honeycombe CNC |
Honeycombe CNC |
Honeycombe CNC |
Focuser |
3" Add on Option |
3" Add on Option |
3" Add on Option |
3" Add on Option |
Corrector Design |
Multi coated 3 lens |
Multi coated 3 lens |
Multi coated 3 lens |
Multi coated 3 lens |
Flat Field Size |
50mm |
>52mm |
>52mm |
>52mm |
Spot Size on Axis |
3.5 microns |
1.8 microns |
2.1 microns |
2.4 microns |
Spot Size at Field Edge |
6.2 microns |
5.6 microns |
5.6 microns |
6.0 microns |
Mirror / Tube Cooling |
3 Controllable fans. |
3 Controllable fans. |
3 Controllable fans. |
3 Controllable fans. |
Attachment Method |
CNC machined alum. |
CNC machined alum. |
CNC machined alum. |
CNC machined alum. |
*The weights shown on each model refer to the standard optical tube with no additional equipment added.