bukowskimouski
November 01, 2008 09:12 PM

oh, and in terms of fisheyes, aperture wont do much since the shorter the focal length the larger the depth of field and there for larger range of subject remaining in focus. reason the camera may have trouble achieving and staying in focus is probably do to light and the fact the lens is an attachment to what it normally looks through to focus. i'd recommend manual focus in low light situations.

bukowskimouski
November 01, 2008 09:10 PM

aperture doenst directly change the focus, but it does affect the depth of field. which is the range of the subject that will be in focus. larger apertures make a smaller depth of field while tighter apertures lead to a larger range of the subject to remain in focus. (<-see ansel adams.)

luke e
December 22, 2007 07:30 PM

yes. it changes the depth of field making more/less things in focus at the same time.

JFA
December 22, 2007 02:44 PM

does the aperture change the focus?