Halpha channel
Specifications
Filter
- Line center: 6562.8 Å
- Line width: 0.25 Å
- Filter brand: Zeiss
- Filter type: Lyot
- Tuning method: rotating calcite stages
- Tunable range: 6562.0 - 6563.6 Å
Camera
- Model: Redlake ES4020
- CCD size: 2048x2048 effective pixels, 2×2 binning
- Hence, 1024x1024 image elements
- Field of view 113x113 “
- Precision: 12 bit greyscale
- Pixel size: 7.4 x 7.4, after binning 14.8 × 14.8 µm
- Optical: 0.11 “/ image element of double pixel of 14.8 µm