Camera focus: object 200 cm from a 5 cm lens

Answer: image distance = 5.128 cm (magnification -0.026 ×).

What we know

  • Focal length: 5 cm
  • Object distance: 200 cm

Step by step

Given
Focal length = 5 cm, Object distance = 200 cm
Formula
1/f = 1/dₒ + 1/dᵢ
Result
Image distance = 5.128 cm

All results

Image distance5.128 cm
Magnification-0.026 ×

Open the lens equation calculator with these numbers → and change any of them.

The physics

The thin lens equation links three distances: focal length (the lens's strength), object distance, and where the sharp image forms.