望远镜放大率计算器 — 公式
## Telescope Magnification
**M = f_objective / f_eyepiece**
Swapping eyepieces changes magnification. The maximum useful magnification is roughly 2× per mm of aperture (e.g., 300× for a 150 mm telescope).
**M = f_objective / f_eyepiece**
Swapping eyepieces changes magnification. The maximum useful magnification is roughly 2× per mm of aperture (e.g., 300× for a 150 mm telescope).
计算示例
1200 mm scope with a 25 mm eyepiece.
- M = 1200 / 25 = 48×
- Objects appear 48 times larger (linearly).