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Varamat Lens "Exit Window"
The two circles represent "exit windows" of the varamat lens at the two extremes of focal length.
The inner circle is the bright or effective illumination for Wide Angle, and the larger
circle represents the effective illumination for Telephoto.
Note the significant difference in penetration into the area
between the perforations. Also note the image light
penetration above and below the perforations. (See presentation text.)
Comments? Please email:
Clint Bradford
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