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Pentax SMC-F Fisheye zoom 17-28mm f/3.5-4.5

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SMC-F Fisheye zoom 17-28mm f/3.5-4.5

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Very light and compact fisheye lens.
Discontinued Yes Edit
Year announced No Data Edit
Lens Mounts
  • Pentax K SMC-F
Focal Type Wide-angle zoom Edit
Focal Length 17mm - 28mm Edit
Angle of View 90 - 180 Edit
Max Aperture f/3.5 - f/4.5 Edit
Min Aperture f/22 - f/32 Edit
Filter Size 49mm Edit
Stabilised No Edit
35mm equivalent No Data Edit
Internal focusing No Data Edit
Maximum magnification No Data Edit
Min Focus 45cm Edit
Macro No Edit
Focusing modes
    Blades 0 Edit
    Elements 9 Edit
    Groups 7 Edit
    Weather-sealed No Data Edit
    Box Contents
    Box Contents No Data Edit
    Weight 225g Edit
    Height 61mm Edit
    Diameter 65mm Edit
    MTF Data
    Effective focal length 17-27mm Edit
    Weighted MTF 16.6 mm: f3.5 0.71 | f8 0.72 28 mm: f4.5 0.62 | f8 0.73 Edit
    Average Weighted MTF 0.70 Edit
    Weighted MTF 10 lp/mm 0.79 Edit
    Weighted MTF 20 lp/mm 0.65 Edit
    Weighted MTF 40 lp/mm 0.43 Edit
    Distortion No Data Edit
    Grade 2.7 Edit
    Photodo MTF Score 2.7 Edit

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