Sony Wide Angle Converter VCL ECU1

NEX 3 Optical Characteristics

NEX 3 MTF 50 (SharpnessI use this to refer to the MTF50I use this to refer to the MTF50 graph. This is how contrasty the lens is, and correlates with perceived sharpness. A lens with high MTF50 will have a short transition period between a white and black edge. graph. This is how contrasty the lens is, and correlates with perceived sharpness. A lens with high MTF50I use this to refer to the MTF50 graph. This is how contrasty the lens is, and correlates with perceived sharpness. A lens with high MTF50 will have a short transition period between a white and black edge. will have a short transition period between a white and black edge.)

NEX 3 MTF 20 (ResolutionI use the term resolution to refer to the MTF20I use the term resolution to refer to the MTF20 graph. This is how well the lens can resolve fine detail, but the contrast is low at this point. graph. This is how well the lens can resolve fine detail, but the contrast is low at this point.)

NEX 3 Lateral Chromatic AberrationDifferent wavelengths (colors) of light have different magnifications and produce colored halos around high contrast objects near the frame edges.

Distortion

The lens has minor, but more difficult to correct mustache distortion with a prominent barrel distortion of -0.58% (numeric average between all apertures), following shows the coefficients and a sample test chart. The 16mm alone had more prominent pincushion.

All data gathered using Imatest.

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