SLR camera lens when the picture is blurred how is the matter
Two questions:
First, do not know what you use the lens, I am also Nikon series of machines, if you use the manual lens, zoom closer, you also need to manually adjust the focus ring.
Second, if it is an automatic lens, you are not careful to set the lens focus to M (ie manual), then the zoom is not estimated after the auto focus
Third, if the fuselage you set to MF, then do not return to auto focus;
Fourth, the above situation is not, then you have to check your lens contact, there may be a problem with the lens.
Blurred picture is because the focal length is long, the slight jitter will lead to blurred photos. There is also a situation where the focus is not on the right position. Portrait to the eyes, the scenery should be on the first 1/3.
The focus is not on the bar, the aperture if the focus is clear, coke outside the fuzzy ... generally also the pursuit of this effect. You can put the aperture small, such as F8, are clear.