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50-megapixel Fujifilm GFX
Fujifilm GF 45mm f/2.8 R WR

Point Spread Function

Shot with Fujifilm GFX firmware 2.00, lens firmware 1.00. Brand-new GFX, brand-new lens.

These crops for showing the point spread function of the Fujifilm GF 45mm f/2.8 are from Green Icy Lake, Blue Mountainside.

A tight point spread function is the hallmark of a high quality lens.

Point Spread Function — bottom right

This area is in sharp focus, so the shape of the specular reflections is not influenced by being out of focus, which would overlay other aberrations on top of the true shape.

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Diglloyd Medium Format covers medium format camera systems, including the Hasselblad X1D and Fujifilm GFX.

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  • In-depth lens evaluations covering behaviors not likely to be found anywhere else, based on real-world field shooting.
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  • Aperture series from wide open through stopped down, showing the full range of lens performance and bokeh.
  • Optical quality analysis of field curvature, focus shift, sharpness, flare, distortion, and performance in the field.
Aperture series 2.8,4,5.6,8 available in full article

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