ProSpec Lens User manual

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ProSpec'          Il           Il ll

lnstruction Booklet
For All ProSpec'
Camera Lenses


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Your Prospec Lens is fully automatic and incorporates not
only computer optical design but also the 1atest optical
muiti-coating techniques. The process of multicoating assures
virtually flare free photographs even under adverse lighting
conditions resulting in-crisp, high contrast pictures with full
cotor fidelity. In additi6n the ProSpec lenses are designed to
retain the full range of exposure automation and metering
capabilities of the camera on which they are molrnted.
MOUNTING THE LENS
Your ProSpec automatic lens mount is similar in design to that
of the standard automatic lens (50mm, 55mm, etc.) with which
your camera is eqgipped, and is mounted and dismounted  in the
same manner as the'standard'lens. Consult your camera
instruction manual for detailed instructions on mounting inter-
changeable lenses on your camera.

Some lens models have an A'M ring next to the diaphragm ring.
This functions as a preview (stop down) mechanism on the lens
 itself . For normal automatic operation the ring should be set to
"A". Only to preview the depth of field or to meter the scene atthe shooting aperture should it be moved to the "M" position'
Many cameias have a built-in stop down switch and do not
 require use of the A'M ring feature'
 Rotate the diaphragm ring to set the desired F stop at the inalEx-
 mark on the lens barrel. The diaphragm can be set to ft-'l! :tr:i:':                                                                                                                   :jo ..r to any position in'between. Proper F stop is citcsS'                                                             an   'rcated by the camera's built-in exposure meter or
  . -ependent meter; or may be dictated by special requirements, suci'  ': rcntrolling the depth of field.
inETER-
 Meter coupling of the lens to the camera  is done automatically.  as
 the lens is mounted on the camera body. Full aperture metering
 of the original standard lens will, in most cases, be retained when
 using the ProSpec lens. One exception to this is that when
 using ProSpec lenses with the Pentax Universal Screw Mount,
                                                only.                                    apertures                           at shooting         must                done              be
foFimetering                                       automatic aperture                               lenses                                 allow            CanOn                 mount MinOlta       and
 selection when used on cameras having this feature'
 with the Minolta XD-11 camera and Minolta Mount lenses, to use the shutter priority mode, set the diaphragm to the
 minimum aperture setting (marked in green) and set the camera
 controls as indicated in the camera instruction manual'
 For use with the Canon EF, AE-l, A-1 and F-llServo EE cameras, rotate the diaphragm ring to the green mark just
 beyond the minimum aperture setting.

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CAUTION: Do not attempt to mount a lens on Canonother than the F-1, A-1, AE-l, AV-1 or EF while the diaphragm""-"i",
 ring is set to the EE position. First turn the diaphram ring to a
manual aperture setting in order to retract the EE pin on the rear
of the lens.
INFRA.RED FOCUS
For infrared photography, correction of the distance scale  is
necessary because the infra-red rays are longer than the light rays
of the visual spectrum. Focus first in the ordinary manner and
               exposure                                                indicated                                                               thethen                               the distance                                           on      -  before                          -  reset                                                         proper                                          (red lines)focusing                              R-index                the appropriate          ring to                                                                  . For
exposure and filtration with infra-red materials, follow the film
manufacturers recommendations. Infra-red index lines are not
included on all lenses.
DEPTH OF FIELD
Some lenses are provided with a depth of field scale. On these
lenses depth of field is indicated for any distance and f stop
                               numbers engraved on bothsetting on the double scale of f -sides of the center reference line. The distance settings opposite
the f   number being used (shown on the left and right hand      -parts of the depth of field scale) indicate the range of sharpness
at that distance and f stop.
5:OCUSING THE LENS
Look through the view finder of your camera and rotate the
.ricusing ring to get a sharp and clear image in the view finder.
Due to the wider depth oT field, it is more difficuh to see the
image 'snap' into focus with wide-angle lenses or wide-angle
settings of zoom lenses than it is with telephoto lenses or
settings. This depth of field makes wide-angle focal lengths
desirable for quick, prefocused shooting. For example, at  f 16 the
depth of field on your 28mm lens extends from less than 3 feet
to inf inity. The distance scale indicates the distance between the
focused subject and the film plane. The scale is necessary for
checking the depth of field, exposure with flash and infra-red
photography.
USING PARFOCAL ZOOM LENSES
The 7A-210mm Compact Macro Zoom Lens is a true parfocal
zoom lens. This means that focusing can be done at any focal
length and proper focusing will be maintained as the zoom
control is changed to compose your picture. For most critical
focus with these lenses, your lens should first be set to the
longest focal length of the zoom range, focused for the sharpest
image in the view finder and then zoomed back for the desired
composition. The larger image and shallower depth of field at
the longest focal setting in the zoom range will help you to get
more critical focus. Naturally, your lens may be focused at any
point within the zoom range, but focusing at the shortest focal
setting and zooming up should be avoided unless focus is
re-checked before shooting.

HOW TO USE THE MACRO.FOCUSING SYSTEM
Convenient close focusing capability has been provided on the
compact macro zoom lenses by having extended focusing range
at close distances. Focusing at close distances with these lenses is
done with the focusing ring in the same manner previously
described for conventional focusing. An additional scale on the
focusing ring indicates the reproduction (Macro) ratio. This scale
indicates the ratio of film image size to object size. The ratio
varies with focal length and the scale will be accurate for only
one focal setting: 210mm for the 70-210mm Compact Zoom
For largest reproduction ratios turn the zoom control to this
focal setting.
"Your new 28-70mm F3.5-4.5 macro wide angle/telephoto
zoom lens is designed with a macro focusing action at the
closest focus distance-Set the focusing ring at the closest focus
distance then rotate the macro ring clockwise to the position
of the desired macro ratio."
USING THE VIEW-FINDER WITH TELEPHOTO LENSES
The effectiveness of different types of focusing screens varies
with the focal length and maximum aperture of the lens. The
range finder or microgrid prisms built into the ground glass do
not work as well with longer focal length lenses as they do with
the normal camera lens and most wideengle lenses, and may
blackout partially or fully. When such a condition exists,
focusing is best done on the ground glass portion of the viewing
screen. On sorne SLR cameras, long telephoto lenses appear to
produce a cut-off image in the upper corners or along the entire
upper edge of the view finder. Actually such viewing cut-off  is
caused by the size of the camera's mirror which is adequate{or
the shorter focal length lenses only. The exposed slide or
negative will be unaffected by this viewing def iciency.

The Compact One-Touch Zoorrr Lens has one rotating barrel
which covers everything ...  zooming, focusing, and macro-
focusing (on some models) with one continued action. This one-
touch zoom lens can be handled in the same manner as the
parfocal zoom lens except the zooming can be done by sliding
the barrel back and forth.

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   HEIPFUI HINTS FOR USING YOUR IENS
*CHOOSE THE RIGHT LENS FOR YOUR PICTURE
  Telephoto (7omm or longer) - Distant subjects, portraits, candids
  Wide-angle (35mm or shorter) - Scenics, interiors, group portraits.*MOUNT THE LENS CORRECTLY
  This lens mounts the same as your normal lens. Read your
  camera instructions thoroughly.
*KNOW      YOUR            LENS                         WITH                                     FIRST                                         IT                     - PRACTICE                                            you             instructions  Read the                          carefully                           and practice                                                      understand                                                   until
   all the controls and scales.
*COMPOSE YOUR PICTURE
  Move around, try different angles until the viewf inder image looks
   like the picture you want.
*USE THE ZOOM CONTROL TO CROP YOUR PICTURE
  The zoom control changes how much subject you can see. Use it
  to remove unwanted background or to see more of your subject.
*FOCUS CAREFULLY-YOUR PICTURE DEPENDS ON IT
  Turn the focusing ring until the viewfinder image appears sharpest.
    lf this image isn't sharp your picture won't be either.
*MINIMUM FOCUS IS THE CLOSEST YOU CAN GET
 TO YOUR SUBJECT
  Don't try to take pictures closer. Check your viewfinder for sharp
  focus.
*MACRO OR CLOSE FOCUS LENSES LET YOU FOCUS
 CLOSE TO YOUR SOEJECT
  Many of these do not need a separate macro focus control. Focus
  as you would normally. Check your instructions.
*DON'T LET THE SUN RUIN YOUR PICTURE
 To get the most brilliant color in your pictures keep the sun
  behind you and use a lens hood.
*USE FAST SHUTTER SPEEDS WITH TELEPHOTO
 LENSES
  Sfow speeds cause blurry pictures. Use at least 11125 for 135mm
  and  'l l25O for 200mm lenses.
*TAKE YOUR TIME _ DON'T RUSH YOUR PICTURES
 Take the picture only when you are conf ident everything is right.
  Remember: Check your exposure, compose, focus and shoot.
*PROTECT YOUR LENS - IT IS A PRECISION INSTRUMENT
  Keep it away from heat, moisture and dirt. Don't drop  it or touch
  the lens elements.
*SPECIAL NOTE FOR CANON MOUNT LENSES
  For use with the Canon EF, AE-l, A-1, and F-1lServo EE cameras,
  rotate the diaphragm ring to the green EE mark just beyond the
 minimum aperture setting.
 CAUTION: Do not attempt to mount a lens on Canon cameras
  other than the F-l, AE-1, AV-l or EF while the diaphragm ring
   is set to the EE position. First turn the diaphragm ring to a
 manual aperture setting in order to retract the EE pin on the rear
  of the lens.

PROPER CARE OF YOUR JCPENNEY LENS
      ProSpec lens should always be capped to protect it when"Your not in use. Like other precision optics, it should never be simply
 wiped with tissue since such tissue may abrade the surface with
any dust which might be on it or on the lens
Any accumulated dust should occasionally be blown o{f with a
 syringe ot one of the available pressurized air products. To
 remove a fingerprint or smear, shred the edge of a lens tissue and
 roll it to make a swab; dampen it with a lens cleaner specially
made for photographic optics and gently wipe the surf ace
 without exercising any pressure. lf repeating the procedure is
 necessary, use a new swab.
 Close examination of any multi-coated lens may reveal some
                                                                         lens minor coating defects or a small bubble in an interior element. These will in no way affect the performance of your
 ProSpec lens.

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Name Ring

Focusing Ring
Depth of Field

Distance Scale
R-lndex for Infra-Red
Photography
lndex for Distance
and Diaphragm Scales
Diaphragm Ring
Diaphragm Scale
Lerrs Mounr

                                       Compact
                                          Telephoto




                            Name Ring
                           Zoom Ring
                                  Macro Focus Scale
                                     (Reproduction Ratio Scale)
                                       Distance Scale
                                    R-lndex for Infra-Red
                                    Photography
                                      Index for Distance
                                and Focal Length
                                  (Zooml Scater
                           Zoom Scale
                                      (Focal Length Scale)
                                  Diaphragm Ring
                                  Diaphragm Scale



  Compact
   One-Touch Macro Zoom