Sony FE 90 mm f/ 2.8 Macro G OSS Lens 매뉴얼

4-6

SAL100M28 (MACRO 2.8/100) (100mm F2.8 Macro)

4)

Click the calculate button to measure the image.

5)

After measuring, check the “G” values.

Average “G” value of the three images shoot with master lens:

(a)

Average “G” value of the three images shoot with checking lens: (b)

1)

Calculate aperture error using the following formula, and check that the aperture error is within the specification.

Aperture error = Average “G” value of master lens (a) - Average “G” value of checking lens (b)

Aperture error = 0 

±12

2)

When the aperture error is out of specification, replace the midway move frame block and perform the check again.

Calculate button

Check the “G” value