

aperture, you can call it the eye pupil of the camera so to speak. it controls how wide your image can be or if you want the depth of field to you image. the function Macro has almost the same function as the aperture. even though, macro only does one of the two things that aperture did. so if you are using aperture to add the depth of field to your image, you image will turn out looking kind of deep into you subject or just the background, but the image will not cover more of the surrounding while if you are changing the f-stop to f2 then the pupil will expand to cover more of the surrounding but it will not sees the subject thats really far away. for example, the picture about the flower is the one with the big f-stop because the flower is the only important emphasis in this picture that's why it doesnt need the see more surrounding. the second image uses smaller f-stop because we don't want to capture one building specificly, we want to capture the whole part of that city and smaller f-stop will expand the pupil more and that's why it can capture more surrounding.







