| Objective |
Lichtenknecker HA achromatic doublet refractor
|
D
|
150mm
|
| F |
1600mm |
F/D
|
10.666 |
| Diameter of solar image |
15.165mm |
| Full aperture filter |
Neutral density (Inconel) Lichtenknecker : ND3.3 +/- 0.1 |
| Bandpass filter |
|
Type
|
Schott BG18(blue-green); peak transmission @ 510nm |
| Bandpass |
158nm (BWHM: 415-573nm) |
Focal reducer
|
Plano-convex lens
|
| D |
50mm |
| F |
2000mm |
| Magnification |
0.945 |
| Diameter of solar image |
14.331 |
| Camera CCD |
|
| Type |
QImaging Retiga 4000R |
| Detector |
Kodak KAI-4021, inter-line transfer |
| Detector size |
2048x2048 pixels (pixel size:7.5x7.5 micron) |
| Sensitive area |
15.155x15.155mm |
| Dynamic range |
12 bits (cooling 25°C below ambient) |
| Readout rate |
20MHz, 4 images/s |
