Digital Macro Photography
Digital macro
photography usually refers to close-up photography meaning that the
image projected on the digital sensor film or is the same size as
the object being photographed. The point of macro photography is to make
small objects appear larger. The term micro photography is also
sometimes used instead of macro, but it means the same. The subject or
object of marco photography is something that is small but not small
enough to need a microscope to see it. Common subjects of macro
photography are flowers, insect, snowflakes, icicles and raindrops.
A factor to be considered in macro
photography is the limited depth of field. Some cameras are capable of
focusing so close that the subject is touching the front part of the
lens glass. A 50 mm lens can so close as to cause lighting difficulty.
Many photographers, therefore, use telephoto or macro lenses with focal
lengths of 100 - 200 mm. this allows enough distance for lighting
between the object and camera.
A recent development is use of ring
lights which use white LEDs to provide light. For macro photography, you will need
bellows or extension rings that fit your brand of camera and
your lens mount. The rings or bellows are attached between the camera
lens and the camera body, so you will need a camera which has a
detachable lens. An SLR camera works best for marco photography.
Many camera companies manufacture
and sell "Macro Lenses". Macro lenses are often expensive. They usually
have a smaller maximum aperture than a standard lens. Nikon's 60mm macro
lens is only f/2.8 for example. Macro lenses are usually also bigger and
heavier than standard lens.
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