|
Standard
Specifications:
| Peak/Valley: |
<1/4 Wave on the
Wave Front, measured at 625nM. |
| |
(Equivalent to
<1/8 wave on the Mirror Surface) |
| R.M.S: |
<1/15 Wave |
| Strehl: |
>82%
(Typically) ~ 90 |
Newtonian
Mirror Sets In Plate & Low Expansion Glass
(Primary Mirror Plus
Elliptical Flat)
|
Mirror Diameter
inches mm
|
Focal Ratio
|
Focal Length
(mm)
|
Flat Minor Axis
(mm)
|
Field Of
View (mm) #2
|
Obstruction
Ratio % #2 |
Mirror
Thickness (mm)
|
| 6.25
158 |
7.7 |
1220 |
36 |
18 |
23 |
19 |
| " |
5.7 |
914 |
36 |
14 |
24 |
" |
| " |
4.8 |
762 |
44 |
14 |
27 |
" |
| 8.75
222 |
7.3 |
1625 |
44 |
15 |
17 |
25 |
| " |
5.8 |
1295 |
50 |
14 |
20 |
" |
| " |
4.5 |
1000 |
56 |
17 |
25 |
" |
| 10.0
254 |
6.4 |
1625 |
50 |
14 |
17 |
" |
| " |
5.8 |
1473 |
50 |
17 |
19 |
" |
| " |
5.0 |
1270 |
56 |
18 |
22 |
" |
|
12.0 304
|
6.0 |
1829 |
63 |
19 |
16 |
" |
| " |
5.3 |
1625 |
63 |
14 |
18 |
" |
| " |
4.3 |
1295 |
68 |
17 |
22 |
" |
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|