Forum: Pentax K-S1 & K-S2
04-18-2017, 08:28 AM
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This image explains it best what a given focal length results in: Crop factor - Wikipedia
The part which is missing from the graphics is that users usually display their APSC images on same size monitors or printed on same size paper as they do FF images and watch them from the same distance. That results in the "tree-part" being displayed larger, which results in users talking about "more reach" on APSC and "more noise" and "less dynamic range" (which all are just consequences of the artificial post-shot displaying enlargement).
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