Aperture is one of photography elements with photography the most important creative work, outside satisfy exposure to need besides control into smooth quantity, also be the important step that achieves specific and artistic result.

⒈ big aperture and into the unity of opposites that resembles quality. Usually, become when big aperture opposite like quality poorer, shot of new nevertheless generation is the biggest when aperture into already improved greatly like quality, make full use of of big aperture into the image that can acquire extraordinary like the characteristic. Because depth of field is right now small, facilitating clarity reflects some location and other position is changed relative to empty, stress principal part. When intensity of illumination is poorer, if hold camera to film, use big aperture to be able to use high speed shutter, prevent machine shake to be affected like definition. A few person that photograph use the biggest aperture rarely, use F5.6, F4 only normally, want to develop the characteristic of big aperture adequately, want to dare to use the biggest aperture, if aperture of camera lens of large requirements standard is complete,can wait for the biggest aperture with F1.8, F1.4, telephoto lens should dare to use F2.8 of the biggest aperture in, cooperate to photograph right now be apart from, the distance of setting and main body (the distance of setting and main body is further, the empty that big aperture forms turns setting result more apparent, vice versa) wait, can fill the effect of big aperture fission to come out now. Probably the biggest aperture films into come well without medium aperture like quality, but this respect loss and get artistic effect look still are worth quite.

⒉ empty changes setting. Big aperture or telephoto lens choose normally when empty changes setting, as to aperture after all how old just calculate appropriate? Actually, besides 200mm even focal distance is longer far photograph outside be apart from camera lens, want to use the biggest aperture normally. Use standard camera lens films might as well choose F2.8 of the biggest aperture even F1.4, only such ability win the lasting appeal of having a unique style likely, depart main body and setting apparently truly. Because digital camera depth of field is opposite bigger, if do not use the biggest aperture, main body is highlighted very hard.

⒊ small aperture and long depth of field. Using small aperture to acquire big depth of field is the method that films scene a short while often is used, but this is mixed even camera lens focal length, photograph be apart from wait for element photograph union. If use telephoto lens, in 2 - 3 meters are photographed when be apart from, although use F32 aperture, also won't acquire very big depth of field. Change character, want the object that be photographed and setting to be in infinity only, although aperture is bigger, also can have very big depth of field.
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