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Q.G.'s V-System Close-Up Calculator

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Focal length:mmDiameter entrance pupil:mm Lens Data Sheet (pdf)
Maximum extension:mmDiameter exit pupil:mm
Horizontal angle of view:ºEntrance pupil position:mm
Diagonal angle of view:ºExit pupil position:mm
Uncorrected: f / 8
Corrected: f /

Uncorrected: 1 / 128 s

Exposure Value
Scale: 1 :  Total extension:mm
Magnification: xLens extension:mm
Field of view:mmExtra extension:mm

Aperture factor:xSubject distance:mm
Shutterspeed factor:xImage distance:mm
-EV: Focussing distance:mm
Front lens to subject distance:mm

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