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Promaster Automatic Lenses 28 and 80-200mmimportant info on EE lens mounting User manual

User manual for Promaster Automatic Lenses 28 and 80-200mmimportant info on EE lens mounting. 7 pages in English. Read the original PDF, download or print a copy without registration.

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Brand
Promaster
Model / document
Promaster Automatic Lenses 28 and 80-200mmimportant info on EE lens mounting
Document type
User manual
Language
English
Pages
7
File size
1.6 MB
Category
Lenses & filters
Document date
Not specified in catalog

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Page 1 · Read text
www.butkus.us





Read the warning on using their
lenses on older cameras with
the EE set !
View original page 1
Page 3 · Read text
Your MC auto Lens is fully automatic and incorporates not
   only computer optical design but  also the  latest optical
    multi-coating techniques. The process of multi-coating assures
    virtually flare free photographs even under adverse lighting
    conditions resulting in crisp, high contrast pictures with  full
    color fidelity. In addition your MC auto lenses are designed to
    retain the full  range of exposure automation and metering
    capabilities of the camera on which they are mounted.
  MOUNTING THE LENS
   Your MC auto automatic lens mount is similar in design to that
   of the standard automatic lens (50mm, 55mm. etc.) with which
   your camera is equipped, 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.
  KR MOUNT
   This is a new program mount for all Pentax "A" series, Pentax
   "K", and Ricoh programmed cameras. For use with programmed
   cameras, rotate the diaphragm ring to the green "AP" mark be-
   yond the smallest aperture by pressing the lock-button.
  SETTING THE F STOP
   Rotate the diaphragm ring to set the desired F stop at the index
   mark on the lens barrel. The diaphragm can be set to full stops
   or to any position in-between. Proper F stop is chosen as          ,/"   indicated by the camera's built-in exposure meter or-rr-
   independent meter; or may be dictated by special requirements,
   such as controlling the depth of field.

   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 your MC auto lens. One exception to this is that when
   using your MC lenses rvith the Pentax Universal Screw Mount,
   metering must be done at shooting apertures only.
   Minolta and Canon mount lenses allow automatic aperture                                      :
   selection when used on cameras having this feature.  ,.
   With the Minolta XD-1 1 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-1, A-1 and F-1 cameras, rotate
   the diaphragm ring to the green mark just beyond the minimum
   aperture setting.
                                                                                   Digitally signed by mike butkus
                                                              DN: cn=mike butkus,
                                                                o=orphancameras, ou=29,
                 ).itmike butkus email=mike@butkus.org,Date: 2019.08.20 19:05:57c=US-04'00'

.r-   ;.- A*
View original page 3
Page 4 · Read text
www.butkus.us
CAUTION: Do not attempt to mount a lens on Canon cameras
other than the F-1 , A-1, AE-1, AV-1 or EF while the diaphragm
 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
then -  before exposure -  reset the distance indicated on thefocusing ring to the appropriate R-index (red lines). For proper
exposure and  f iltration with inf ra-red materials, follow the  f ilm
manufacturers recommendations.  Inf ra-red index lines are not
 included on all lenses.
DEPTH OF FIELD
Some lenses are provided with a depth of field scale. On thgse
lenses depth of   f ield is indicated for any distance and f stop
setting on the double scale of f-numbers engraved on both 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.
FOCUSING THE LENS
Look through the view finder of your camera and rotate the
focusing ring to get a sharp and clear image in the view finder
Due to the wider depth of field,  it is more difficult 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  f or quick, pref ocused shooting. For example, at  f 16 the
depth of  f ield on your 2Bmm lens extends  f rom 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 80-20omm 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 wi ll help you to get
more critical focus. Naturally, your len$ 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.                                )
View original page 4
Page 5 · Read text
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. Additional scales on the
        index barrel indicate the reproduction (Macro) ratios. These
        scales indicate the ratio of film image size to object size. The
          ratios, turn the zoom control to the largest focal setting, and the
         focusing ring to the closest setting.
     USING ONE-TOUCH ZOOM LENSES
      The Compact One-Touch Zoom 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.
     USING THE VARI.APERTURE ZOOM LENSES
      Some wide-tele zoom lenses have variable aperture design. Whatl         this means is that the lens speed continuously changes as the
        focal setting on a zoom lens is altered. On a 28-80mm f3.5/4.5
      zoom lens, for instance, the lens speed of f3.5 is accurate for the
        focal setting of 28mm and that of f4.5 for 80mm. These varia-
         tions in the lens speeds can automatically  adjusted for correct
        exposure by metering system oil your camera.
     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 wideangle 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 some 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 for
       the shorter focal length lenses only. The exposed slide or
          negative will be unaffected by this viewing deficiency.
      Your MC auto lens should always be capped to protect it when
        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 off with a
        syringe or 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 surface
        without exercising any pressure. lf repeating the procedure is
          necessary, use a new swab.
View original page 5
Page 6 · Read text
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Ph'rfnc'::nh'r

Zoom Ring

Zoom(Focal Length)
Scal e

Index for
Diaphragm and
Focal  I enpth(7or,m) Scale

Diaphragm Scale
View original page 6
Page 7 · Read text
Focusing and
Zoom Ring

Distance Scale

Macro Ratio Scale

Zoom(Focal Length)
Scale

R-lndex for Infra-Red
Photography

Index for Distance
and Focal Length(Zoom)
Scal e

Index for Diaphragm Scal

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View original page 7

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PDF verified 2026-10-10.