Using Macro Lens Cameras
Additional equipment may not be absolutely necessary, but it can offer new photographic possibilities. One of the most useful accessories is some means of taking close up shots.
There are several ways of doing this. The cheapest is a close up lens which is fitted over the normal camera lens. This does not, however, give a very high quality image. When using such a lens on an SLR camera, focusing and framing are relatively easy, but when it is fitted to a camera with a viewfinder the distance to the subject must be measured. The lens will come with instructions about the correction to make to the focus setting. Because the viewfinder is offset, an educated guess will have to be made about how to point the camera.
The only really satisfactory methods are to use extension rings or bellows, or to buy a separate macro lens. The rings or bellows are fixed to the camera as a lens would be, and the lens is attached to the front.
Extension rings usually come in sets of three, and can be used
singly or together. When using them with certain lenses 1:1
magnification can be obtained, which means that the image is the same
size as the object. Bellows work in the same way, but can be moved
smoothly in and out so that any degree of magnification within their
range can be obtained.
A macro lens allows close up work without having to fuss with these
awkward devices. However, some macro lenses can be used with rings or
bellow to give even greater magnification.
Tips in close up photography and how to use macro lens cameras: When working at high magnifications, exposure time has to be increased considerably, and if electronic flash is used, try to attach it with a very soft diffuser.
Another problem that usually occurs when using close to full magnificaton or 1:1 life size magnification is the depth of field. With very high magnification, depth of field is almost nonexistent. Sometimes when a small things are rightly focus, the background with mere 5mm away would have already been blurred; hence, extra care have to take expecially during focusing.
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