Pentax SMC-FA Macro 100mm f/2.8

no photoMacro lens offering stepless focus down to 1:1. The lens also has a focus range limiter and a helicoid focus mechanism.
Discontinued more info Yes Contribute
Year announced 1991 Contribute
Lens Mounts
  • Pentax K SMC-FA
Focal Type Telephoto Contribute
Focal Length more info 100mm Contribute
Angle of View more info 0 - 25 Contribute
Max Aperture more info f/2.8 Contribute
Min Aperture more info f/32 Contribute
Filter Size more info 58mm Contribute
Stabilised No Contribute
35mm equivalent No Data Contribute
Internal focusing more info No Data Contribute
Maximum magnification more info No Data Contribute
Min Focus 30.6cm Contribute
Macro more info Yes Contribute
Focusing modes more info
    Blades 0 Contribute
    Elements 9 Contribute
    Groups 8 Contribute
    Weather-sealed more info No Data Contribute
    Box Contents
    Box Contents more info No Data Contribute
    Weight 600g Contribute
    Height 103.5mm Contribute
    Diameter 74mm Contribute
    MTF Data
    Effective focal length 99mm Contribute
    Weighted MTF 100 mm: f2.8 0.67 | f4 0.75 | f8 0.83 Contribute
    Average Weighted MTF 0.80 Contribute
    Weighted MTF 10 lp/mm 0.88 Contribute
    Weighted MTF 20 lp/mm 0.76 Contribute
    Weighted MTF 40 lp/mm 0.55 Contribute
    Distortion No Data Contribute
    Grade 3.9 Contribute
    Photodo MTF Score 3.9 Contribute

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