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Pentax SMC-F 135mm f/2.8 IF

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Rating: 4.5 out of 54.5 out of 54.5 out of 54.5 out of 54.5 out of 54.5 out of 5

A fast medium telephoto
Discontinued Yes Edit
Year announced 1987 Edit
Lens Mounts
  • Pentax K SMC-F
Focal Type Telephoto Edit
Focal Length 135mm Edit
Angle of View 0 - 18 Edit
Max Aperture f/2.8 Edit
Min Aperture f/32 Edit
Filter Size 52mm Edit
Stabilised No Edit
35mm equivalent No Data Edit
Internal focusing No Data Edit
Maximum magnification No Data Edit
Min Focus 70cm Edit
Macro No Edit
Focusing modes
    Blades 9 Edit
    Elements 8 Edit
    Groups 7 Edit
    Weather-sealed No Data Edit
    Box Contents
    Box Contents No Data Edit
    Weight 375g Edit
    Height 80mm Edit
    Diameter 65mm Edit
    MTF Data
    Effective focal length 130mm Edit
    Weighted MTF 135 mm: f2.8 0.72 | f4 0.75 | f8 0.79 Edit
    Average Weighted MTF 0.77 Edit
    Weighted MTF 10 lp/mm 0.88 Edit
    Weighted MTF 20 lp/mm 0.73 Edit
    Weighted MTF 40 lp/mm 0.42 Edit
    Distortion No Data Edit
    Grade 3.5 Edit
    Photodo MTF Score 3.5 Edit

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