Magnification Calculator
Calculate magnification ratios for macro photography.
Lens Settings
Magnification
1:2.0
Close-up Range
Magnification Details
Base Magnification1:2.0 (0.500x)
With Extension1:2.0 (0.500x)
Working Distance200 mm
Extension for 1:1~100 mm
Field of View
Frame Coverage72.0 x 48.0 mm
Subject Fill42% of frame
DOF at f/8~2.88 mm
Magnification by Extension
0mm tube0.50x
12mm tube0.56x
20mm tube0.60x
25mm tube0.63x
36mm tube0.68x
48mm tube0.74x
68mm tube0.84x
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Standard Mathematical References
by Various
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.