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Therefore, when shooting in macro, it is easy to get a shallow depth of field if utilizing a large aperture. We often make use of the F8, F11, F13 such small, and medium-sized aperture to look at photograph to ensure the photo has clear range. If you use a 100mm macro lens to shoot the insects' close-up, even with the F13 aperture, the depth of field is extremely shallow, and sometimes need to utilize the manual focus function to carefully adjust the focus position to spotlight your eyes of insects to make the image more vivid. Unfortunately, about 5 % of such women could have frequent infections. Recurrence has numerous possible causes -- incomplete management of a yeast infection, chronic medical conditions, and medications like steroids. It may be also something else entirely, which explains why you need to confer with your own doctor whether or not this happens to you.