Venus Optics LAOWA 100 mm f/2.8 2X Ultra Macro APO
10. Focusing
Enough jokes - let's look at the photo below.
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Now let's pass to the macro scale and set the focus at 0.3 of a meter. The depth of field scale indicates that by f/11 aperture you'll get sharp images in a range from about 26 to 45 centimeters. Applying the DoF calculator again you find out that in that case the depth of field is just 4 mm wide and stretches from 29.8 to 30.2 cm.
One final proof: in order not to base our accusations on calculations only let's check what photos you are able to shoot if you employ the values, indicated by the scale. Below you can find a series of three photos we took by f/2.8. In the case of the middle one we set the focus on our own; images on the left and on the right were shot taking into account the DoF indicators by f/2.8 provided by the lens's scale, provided on the barrel.
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