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EXCERPT page containing first few paragraphs. 2022-08-18 16:02:24

Hasselblad XCD 35-75mm f/3.5-4.5

MTF for Hasselblad XCD 35-75mm f3.5-4.5

MTF (calculated*, not measured) is shown below at 35mm, 55mm, 75mm.

In general, the Hasselblad XCD 35-75mm f/3.5-4.5 is optimal wide open, or nearly so. Stopping down tp f/8 serves to improve the edge to corner area while dropping MTF of coarse and medium and fine structures from diffraction.

In general the Hasselblad XCD 35-75mm f/3.5-4.5 delivers exceptionally consistent performance across the entire zoom range.

Toggle each graph to compare wide open to f/8.

Calculated MTF curves including diffraction. Not measured from real lenses. sagittal slit orientation drawn with continuous line and tangential with dashed. White light. Spatial frequencies 10, 20 and 40 lp/mm.

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Aperture series 3.5,8 available in full article
MTF @ 35mm for Hasselblad XCD 35-75mm f/3.5-4.5
Aperture series 4,8 available in full article
MTF @ 55mm for Hasselblad XCD 35-75mm f/3.5-4.5

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