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Camera lenses cannot deliver all the quality
built into them unless they are clean, in good working order and
properly handled. This is true of camera bodies as well, for the
lens/camera combination must function smoothly as a unit. Even under
the best of conditions photography is full of surprises and
disappointments, so it pays to minimize the risk of poor results by
making sure your equipment is free from defects, well maintained and
intelligently operated.
Cameras and lenses, like automobiles and other consumer products are
not always in perfect working order when they arrive at a dealer. A
small percentage may need a little touching up before they are at their
best. A ring may need to be tightened, an index mark realigned or a
mounting flanged repositioned. If you purchase a new piece of equipment
and it doesn’t seem to function quite right, have it checked before the
warranty runs out. A small adjustment or two may be all this is needed
to put it in top shape. A matter as simple as a ground glass focusing
screen installed upside down can prevent you from focusing accurately.
A sticking diaphragm blade can cause inconsistent f-stops and erratic
exposures. If a minor problem of some sort keeps cropping up no matter
how careful you are in your picture taking, you should suspect some
malfunctioning of the camera or lens. Have the equipment examined by an
expert. Corrective measures are often simple and fast.
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