Pentax SMC-FA Zoom 28-70mm f/4 AL

Pentax SMC-FA Zoom 28-70mm f/4 ALManufacturer's Description:

"Aspherical lens with constant aperture throughout zoom range"
Availability
Discontinued more info Yes Contribute
Year announced 1996 Contribute
General
Lens Mounts
  • Pentax K SMC-FA
 Contribute
Focal Type Standard zoom Contribute
Lens
Focal Length more info 28mm - 70mm Contribute
Angle of View more info 35° - 75° Contribute
Max Aperture more info f/4 Contribute
Min Aperture more info f/22 Contribute
Filter Size more info 52mm Contribute
Stabilised No Contribute
35mm equivalent No Data Contribute
Internal focusing more info No Data Contribute
Maximum magnification more info No Data Contribute
Focusing
Min Focus 40cm Contribute
Macro more info No Contribute
Focusing modes more info
    		Contribute
    Construction
    Blades 8 Contribute
    Elements 9 Contribute
    Groups 7 Contribute
    Weather-sealed more info No Data Contribute
    Box Contents
    Box Contents more info No Data Contribute
    Dimensions
    Weight 240g Contribute
    Height 66mm Contribute
    Diameter 65.5mm Contribute
    MTF Data
    Effective focal length 29-67mm Contribute
    Weighted MTF 28 mm: f4 0.69 | f8 0.76 40 mm: f4 0.69 | f8 0.79 70 mm: f4 0.74 | f8 0.80 Contribute
    Average Weighted MTF 0.75 Contribute
    Weighted MTF 10 lp/mm 0.85 Contribute
    Weighted MTF 20 lp/mm 0.70 Contribute
    Weighted MTF 40 lp/mm 0.44 Contribute
    Distortion No Data Contribute
    Grade 3.3 Contribute
    Photodo MTF Score 3.3 Contribute

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