learn.howToCalculate
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Converts between megapixels, pixel dimensions, and print sizes at various DPI settings for photography.
公式
Megapixels = width × height / 1,000,000
ステップバイステップガイド
- 1Megapixels = width × height / 1,000,000
- 2Print size = pixels / DPI
- 3File size estimate based on bit depth
解いた例
入力
24MP at 300 DPI
結果
8" × 6" print
避けるべきよくある間違い
- ✕Assuming screen resolution (72 PPI) is sufficient for print
- ✕Ignoring JPEG compression in file size estimates
よくある質問
What DPI is needed for print?
Typically 300 DPI for professional print quality.
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