Pentax-110 Close-Up Lenses
Pentax-110 Close-Up Lenses are
convenient attachments that fit over the front of Pentax-110
interchangeable camera lenses to enable much closer focusing and
higher magnifications than possible with the camera lens alone. To
mount a close-up lens, simply screw it into the filter threads of
the master lens. Exposure is controlled in the normal manner when a
Close-Up Lens is used and no special adjustments are required.
Focusing is performed as normal with the master lens, but focusing
range and magnifications are altered as indicated in the chart
above.
Types and Sizes
Pentax-110 Close-Up Lenses come in
three basic types and sizes, and each produces different
magnification. The two type "S" Close-Up Lenses are for use with the
Pentax-110 24mm Standard Lens; the "W" type is for use with the
wide-angle lens, and the two type "T" Close-Up Lenses are for
the 50mm telephoto lens. The focal length of each close-up lens is
indicated in centimeters besides the type designation. For example,
the S31 Close-Up Lens has a focal length of 31cm (310mm); that of
the T26 Close-Up Lens is 26cm (260mm). The shorter the focal length
of the close-up lens, the larger the magnification.
