// multi-utility computation suite · offline · instant · precise
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sci.lens-equation Calculator
Calculates image distance, object distance, and magnification for a thin lens using the lens equation 1/f = 1/d_o + 1/d_i. A convex lens with f = 10 cm forms a real, inverted image of an object 30 cm away at 15 cm on the other side (M = −0.5).
Inputs
Focal Length Cm
Linear measurement. Ensure consistent units: 1 m = 1,000 mm = 3.281 ft.
Object Distance Cm
Separation between two points or total path length. Check that units are consistent throughout the calculation.
Lens Type
Reference formula or conversion factor shown for context.
Results
image distance (cm)
The computed distance or separation.
magnification
The value at the specified point or condition.
image type
The classification or type assigned based on the inputs.
image size
Reference formula or conversion factor shown for context.
1/f = 1/do + 1/di
Reference formula or conversion factor shown for context.