Photography
Check how much sky your focal length covers; the Moon is a size reference. Approximate thin-lens calculation.
Tips for this event
- A long focal length shows the discs; a short one, the pair over the landscape.
- Check the altitude from where you are: near the horizon, the atmosphere blurs the image.
- Use a tripod and a remote release to avoid camera shake.
Field of view
The disc of the Moon (about 0.52°) to scale. For planets it is a reference: their discs are much smaller.
- Field
- 5.15° × 3.44°
- Effective focal length
- 400 mm
- Moon on the sensor
- 3.63 mm
- Width covered
- 10 %