SIGMA Lens Instructions / Specifications focus lenses User manual

Sigma lenses are of uniformly high quality because of Sigma,s
unique production management system. Designs for our lenses
are based on consumer feedback obtained through intensive
market research, and the highest standards are maintained
throughout the production, assembly and inspection of lenses,
lens barrels and other components. lt is our business to pro-
duce lenses of a quality you can obtain nowhere else; for this
reason. Our fixed mount system further enhances the relia-
bility of Sigma products.
Sigma specializes in lens manufacture, producing a full line of
interchangeable lenses for almost all 35 mm SLR cameras. you
can be sure that any of our products willfully meet your ex-
Pectations.
Thank you for using Sigma lenses; to help you get the most
out of your Sigma lenses, please read these instruction care-
f u lly.

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600mmF8, 400mmF5 .6 . 300mmF4  . 5. 200mmF3. 5 /r E     It. ltr'!  fritLt\. 6qhrh9*-l; *t.,ft FFpy z'16
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o Attachment of  filters to SIGMA lensas   SIGMA interchangeable lenses are designed so
   is based on economy and ease of opera,     that the common 52mm filter can be used,
    tion.                                   except for 16mm F2.8 Fisheye lenses and
Filters protect lenses and help produce special   18mm F2.8 ultra wide-angle lenses (which have
photographic effects. A variety of filters are    extremely large light entrances) and the 60omm
available, including ultraviolet absorption   f ilters,    FB, 4o0mm F5.6, 300mm F4.5 and 2OOmm
polarizing filters, infrared filters, etc. All    F3.5, which require large apertures. Constant

-?
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     ila
   I
    0. Hl-r-*f-  0>t:A0>v > i Ltt= r.*f r. t Of    (Achromat). 3e{:rt.{&firFL/:6 0)b7 rf 2 u=-
                                                               l. tdgftv>lr,l.ztEtr           l. (Apochromat) t€rlX *.olHE t-.r. ( tt€+E A   n" y2'30)77f 2a= -
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              f :J t. ++t4ttqt(*.ffiL/:HEl,v z Llal#o)&.ffi    J )r: /r , *f.
  E? "IHEI : Ll:= 7 l,    oI.al.ggr-> z? f"
   e.l\'Et 2 fi.|:, L.( ^t'iH rE L /: 6 o k7 2 tl -"-   l.

   the l6mm F2.8 Fisheye lens, which is at the    sable to the design of super telephoto lenses.
    opposite end of the focal length scale. Thus,    Chromatic aberration reduces image contrast,
  SIGMA lenses with standardized filters give   and is more increased with lenses of longer fo-
    their users a wide range of advantages.                cal lengths or smaller telephoto ratios.
    .  APOCHROMAT lenses of professional qual-   As the solution of this matter, the positive lens
         ity available at economical prices.              of the front group in telephoto lens is normally
    Correction for chromatic aberration is indispen-   used the fluorite which is the special optical

aF50)Efft=?atS7,4
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                                              of: L /-'r  . L4 L. Jrt   ( *fi L t".,E  lt5i i:J 6-" r av
                                             Ti^tFfl  ,E L * L /:"   ry-/i 6 t7"7)t fuzv-i7  v
                                                                 z" v>t' t,-t U * d, 13 r.. r2ttt# rfi.7 2 v-< -f  v >A t
material of the low dispersion. *t:                materials employed in ordinary telephoto
However, this material is expensive, difficult    lenses by using common optical glass lenses in
to produce, and easy to scratch, and is there-   an entirely new configuration. The methods
                                                                                                            arefore not truly suitable for this purpose.    used to correct for chromatic aberration
However, SIGMA's apochromat super telephoto    achromatic (compensation for two wavelength)
                                                                                                 threelens (high contrast) is designed so that chromatic   and apochromatic (compensation for
aberration is corrected without the special    wavelength). The relationship of the ray con-

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centration to wavelength may be shown for    function, so picture quality has been second
the visible range of wavelength on a horizontal    rate. SIGMA has developed an entirely new
line against chromatic aberration as shown  .in   macro photography system based on revolu-
f igure 1  .                                             tionary technology to enhance close-up quality.
o Superb Ouality in Close-up Photography    Unlike regular optical close-up lenses, SIGMA
The macro photography feature of zoom   employs a new "double aligned achromatlc
lenses has long been treated as a secondary    lenses" system in its zoom lenses, thus giving

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           :i'           :i#i
   c-f-'x:-a   . 4 t,  80-200mmF3. 5 4                                                 (Bl 7) t*, &T+A   4.4!$18 Lfit:ut:l:*.h2, ? L-c:n*t' d4 L;,ttrt
                                                                                                       t)                           q *fi f+1 /# |      frF 4h ?ry.b : - -" a  { : ftl i  /: 3fif f# nt                                                   t  tt t^    h'->l:52nn2 4 )v, qfil.Hltalki"t- L{ t'*_4;
      rtt:J 0. frtut:ILh?,tbar: L/-'/-"rtf ttlhL*a
    '                      4fr?f t>-t:52nn7't tv F o)   -fiqfi!^"-/.f,ra?lt6
    tfr.ffib"IfiEt:LiL/-'.
   y2=A-t".7"tvF 75-250mmF4 5 y2'=\'-J,.. )t^                                                                                                                                                                                               ii pri   .l'120 300mmF5. 6 6. 3 {, :O  lt) t  )r    fr?+XFJL                                    ^}i
   the magnification system, are moved together    Recently, a double alignment system has been
  with the master lenses to obtain different   added to the former systems. This revolutionary
   magnif ications.                          new "floating zoom" system, which cannot be
  The mechanical compensation type, on the    categorized in either of the two aforementioned
,  other hand, includes some lenses in the varimag-    groups, is incorporated in the ultra-wide SIGMA
   nified system which are moved independently   ZOOM 21 - 35mm F3.5 - 4, in which com-
                   lenses by a series of cams.           pensation for zooming focus error is achievedti  of the master
I

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by shifting a third group of lenses independent-    that a maximum correction of -1 .49Yo is a'
ly  f rom the rear lenses. The SIGMA ZOOM 35 -    chieved with the wide angle setting and +0.59%
85mm F2.8 - 4 (Fig. 6) includes a fourth group      is achieved with the telephoto setting. Further,
of lenses which move independently of the third    the SIGMA ZOOM 80 - 200mm F3.5 - 4 (Fig.
group. This newly developed system, called the    71, bv minimizing movement of its three lens
"quartet zoom system," allows a lightuveighl,    groups with the newly developed "Trio cam
compact lens with sophisticated performance.    system," not only achieves sophisticated per-
A'residual distortion with traditional zoom sys-    formance, but makes it possible to use 52mm
tems is limited to a maximum of about 5%.     filters; this was impossible with the former
SIGMA's quartet zoom system is designed so    systems.

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                                                                                                                                                                                         d,hb )i'$,t--lFt-t  ( /-"51'"  'ffi.o)' r'= i.vl'rt-?t7l'      * /-' .ffiH;t.€ff r-, t'-2' s v 2 L.(Istt,/rt  I ttlf/r

All Sigma lenses employ the same fixed mounts   When installing a Sigma lens, follow the instruc-
used by camera manufacturers, not the re-    tions given in the camera's instruction manual.
placeable mounts used by other lens manu-    With the regular bayonet mount:
facturers. They are fully compatible with all    1) Align the lens diaphragm scale with the
automatic exposure (AE) systems, including     mark (normally red) on the camera body.
program systems as well as both aperture-   2) Turn the lens clockwise or counterclockwise
priority and shutters priority systems.               (depending on the camera) until it click

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etc. can cause the focal point to shift.
When using a lens with an aperture greater
than F4.5, or when using a camera without
automatic aperture control at F4.5 or greater
with split image focusing, half of the split image
may become dark. lf this happens, focus on
the mat surface of the focusing screen.

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1y115- H@o) rEA. ft  .fi  f  tt H6  r r80 mm o{tr E  r -_tr*lFt) >   Itry{ErrE, *.tof.  br'f  t,?-r..J 7 {:&ErJ(:ziL
2'h;b t*frrfFHE 5m{:abt- 6L_ vyl0)bi     a b,  *.t" * t v9EfmA   tr/:. lp1l>t*.r'ti  i rrg
fiE Efl , ifft t F 1 1?   I i   I l'- 7 mh' c, 4 m('  t' t'f b 6 : t r                                                                                                         t *)   E{EU. **€otls-ofi  L' lt t rtfA A  {A11 ?'.1.
,' 9 * -t-; :OiEtr        : > 2 (+*lF, >   t  $)ttt,t :               ^-                        "' t ) r: t -> a -* 0)f LA.IV,LI,".*  * f"
ween 4m (13.1ft.) and 7m (23.Oft.) wiil tie     focal length is changed, the range for telephoto
in the depth of field when the focal length is     is marked in orange and the range for wide
80mm, the aperture is F11 and the focus     angle is marked in green.
control ring is set to 5m.                    An easy-to-read depth of field table is shown on
This range changes as the lens is zoomed.          the next page. With the one-touch-zoom lens,
For rotary zoom lenses, the depth of   f ield    the depth of field is indicated throughout its
is indicated in the same way as with fixed     entire focal length.
focal length lenses. Since the value varies as the     * except 200mm F3.5 lens.

7 4'v z z-7 4 l6mmF2. 8&Ll' : 7-600mmF8l;IYlo)
|l\v > zjt---.tr..-c ll. /t( w > /'tlffio)21 )v ,ltr-)
 tI i.rt--h U i\/ufft,lf L*t"
y 2'= v > t'l)7  I )v, 1+It'*lJ?pAt  . ll L lL E t &.
                                                                         -                          LI b,   *, t o (. 6,.f1 c-,-,     ti 52nn  | .1fl,t6 tkle          -
ltilcffi.xfi7)71 )v , -t.   -rf,f z"igr ,T'1r'ItytoHi->'L'R
dbr*.t4""

 Apart from the 16mm F2.8 Fisheye lens and
 Mirror 600mm F8 lens, filters are attached to
 lenses by screwing them into the filter mount.
 Most Sigma lenses use popular, 52mm diameter
  f ilters, so  f ilters of different sizes are not
 necessary.

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                                         6 &   77v7"1'v>t) /rtr+  f!(:tt67  i , {-f" Lr'L. lF)tz't  tv F - tlfr.rnt
  6t*. z t tv F o)Ef-^. t= J D *lft--J o-rrJ. {$-n, ri    f Ltffi.ffiL(( ftt'"
           p fta 6f&nhrb, *.t" :o) r*,}., f-  Itffio> t 2 w
r 7 12 l 7-l" t--brtr. U utit U : A.t' h 6 77 v2" F'9
  vv ,/667 -672tft.t--*.bLt Lbtf L. 7260)lFyc
  71)v, tLr-trifr.ffiL((  /-" 31," X?2671  )v r('.
                                                       filter    cfockwise, then install a 72mm polarizing SIGMA ZOOM 21 - 35mm F3.5 - 4  installation screw has a diameter of 67mm.      filter before using. Also remove the stepdown
 When using polarizing  filters, some light vig-      ring when using a 72mm filter.
  netting may occur, depending on the thickness
 of the  f ilter. To prevent this, remove the
 67 - 72mm stepdown ring which is screwed
  into the Perfect Hood by turning it counter-

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                                            5 rf * f"   J i   t :                                                                                                     /i+ b rt. AE lJiE   l : fi ^*':l60"fcl $r At* f;,t@u.y z,r:, > t +ry Lt h; L,Ef  rfu ^f{60 "tr ir
                                                                                                -y ? E n;H : i -c.; e t  lLllq E trElr.,5 i-L* f"@ w > A-n;z  r: yl.   IJ t, t*[t: A'#|JF fa* ?; :o)7 v    v Lu
> l Hto)&.i*-*fi :rl'Tt,' 60) h; 7 4 p F f  -f"
@:0>z,t tv FtJ)JL/>t\t--/J-Tu'*  f o)ft^El
 Lrtiltf   Lr(/:"3r"."
@ftfl Lt:\,2 4 tv F t LD'>tl *.-1"        '      &"

To replace the filter:                                    3)  Replace with another filter.                              :'!
1) While depressing the lock button, turn the    4l Align the red index marks on the front and
   front section of the lens counterclockwise         rear sections of the lens, then turn the front
   about 60' to remove it.                         section clockwise about 60o. When  it
  You will now see the filter, mounted in        cficks, the front and rear sections are
   the rear of the front section.                          secu red.
2) Turn the  f ilter counterclockwise  to remove it.

0_56: rt^EI+l " iiifro)=> l.7x52g4y11u
R-60 : fJ .?" # t*z 4 tv t^ )kLli= J/ 1.7 7.  l. l+J "
ND4X  :       )t i$,bl / 4  | jtht', I t 6"
? tr ?' t'1         ^q'l0) 7 4 tv F Q t q t-- iT L l                                                                               . i:f R  l :-r r ..rltP. 66 ?
:4,41{(/:"Ft'"
 ry 6QQmmF8itd'860)zu>l24   tv F-  {, {t}}J?} *-fi


Normal : For general use, both color and black              white and infrared
         and white                     ND-4X : Neutral density filter, reduces quan-
Y-52   : For portraits and landscapes, black                  tity of incident light to 114
         and white                              For further details refer to page 66
O-56  : lntensifies contrast in  landscape   NOTE: 600mm F8-lens is also possible to use
         photography black and white                 d86 front filter
R-60   : For intensified contrast, black and

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        'ffi1                                                                                                                            r*i





                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      ,


        steps and 2-113 steps respectively.   Y52:    This filter absorbs light from blue-
         (Dark red)                                      green to ultraviolet and is also used
056:    This' filter absorbs light from green           to enhance contrast in black and
         to ultraviolet and is used to produce          white photography.  lt   increases
         contrast in black and white photo-              contrast in distant landscapes in the
        graphy. lts characteristics fall be-           same way as the previous filter and
        tween those of the R60 and the Y52               also can be used effectively in portrai-
        described next. lt  also increases            ture to bring out the iryhiteness of
         contrast. lts exposure factor is 3.5x         a woman's skin. lts exposure factor
-        (1-3/4 steps) for ordinary daylight              is 2x (1 step) for daylight lighting
        and 2x (1 steps) for tungsten lighting.         and 1 .4x (1 /3 step) for tungsten
          (Orange)                                                 lighting. (Yellow)

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            o)t&t ,4ftg-l+t3> l      ,                                                    L.                                             t 6                                   :.r -w >       ^l                                 ^:C't&FtEE    +4Sl3r;FH6                          ( rJz.. u,bwzr:7-r'-7,l.                                            tr+
 lJ"t-I6 : 1-w > i++H ArH*h'4rn*.-f"
 :oi'tftt L(|JFES, t%-rEk)t-, s-t:f 6 ( r,rr
 v F                                                        z. ) LFI,I/: /r (   -z€-t"' k % -  I ^7 y7":Elt rr  b*f"

When high contrast subjects are photographed
with mirror type lenses, the central portion of
the image produced on the film will be abnor-
mally bright. This effect, which is peculiar to
mirror lenses, is known as the mirror ghost
effect.
To reduce this effect, increase the exposure
112-1 step (or reduce the shutter speed a
corresponding amount).

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                                        ot> 7" iti  I'tt ht'{ ( t;,, t L I t' * fL L t ) 1 1 t,'Lc.t),r1
-f /,t. U r L Al   .lil;,,] lti,fin;ul.Jtt,t 4'f L { L *L'. "L
   )> 4!'u)rlJfti/t'l'.{.,':  t(-/j\lt   > 2'-eu),,-->
                                    > T2 t'/  l'7-   l.'lJ. : 9);iilt{rE'  'i.f4\(t',lrr fi t 1.1 I
fq? iR L /: b o){ f.   : u)                                                              i)L *o)  lLtl'i 2                               -7 -I-'  t'- J -, a,
          Li"t2\tti,l\lii,t:j,lr .7 > 2 tv /tlll Llf-1.'i')                                                                              ( 28nrnr

When a photograph is taken with a wide angle
 lens, the proportion of the image filled by sky
 is greater because of the wide angle of view.
 This increases the possibility of the lens being
 subjected to direct sunlight which can cause
 halation.
 Sigma's "Perfect Hood" solves this problem

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 F2.80)tE/i\'tii->T. '* *?trw{ft/:o/:ttH /r7 > I
                              b*                                             L/-."                                                     flH.firt                                 ] 6J)r._rs ruf ll:1ti1[,FLtu:trrf                                   ,#   {nb+radtlF                                                                t 0)&t#                                e                                                       h, b L,                                  2  | - h'     O I* 6 t                                       0) r,                 t, h I ),1:7".t
 f.  *,+; t: 7-1: f<l!0> F t,'ffi;rr=- 2 hlw > 40)+ft  tnry,L
 F../i 6 fii.E t--li eD j^ A? < /-"F  r.' "



by using a 3-dimensional hood pattern which   When mounting the Perfect Hood on a lens,
allows photographs to be taken approximately     align the white mark on the longer side of the
20o closer to the sun than with circular hoods    hood with the lens mark, irrespective of the
(with the 28mm wide angle lens). With the    hood's position with relation to the camera
Sigma Perfect Hood photographers can take    body.
photographs at bolder angles than were pos-
sible with conventional hoods.             s

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v ?a 0)4ffiy                                 t) -^  0)300mmF4. 5. 400mmF5. 6. 600
mm F8.  I 2 0 300 mmF5.6 - 6 .3 o) 4 Wt6,t --IJ.  trl +zi fi t) --,
ffifrr& ar#r .{r '* -il
h t, O, 7  I-)t - ffi, a =                                                           1-l,1, 6 qA +F  I J -,  ffiilI lS L b -  l, i.
, kuT 6b 6. t t: J-t.    ffi H{:4+*f3  * fri    : a)
 t 3.  ).,  t LD:&3/rl, J ) l--x/t-D{   ( /-'Fr,."                                                             "':r

The Sigma 300mm F4.5, 400mm F5.6,600mm    camera position to be changed by realigning  it
FB and 12O  300mm F5.6'- 6.3 lenses    with the tripod mount screw loosened. When re-                -
are equipped with rotary tripod mounts. This     tightening, the screw should never be tightened
rotary tripod mount allows the photographer to     excessively.
move the camera body  f rom vertical to horizon-
 tal and back with a single movement. The tripod
mount used for the 30omm,400mm,600mm
and 120 - 300mm F5.6 - 6.3 lenses allows the

tttr*I&frt,t--"tt6FEili')i*t|f   . t)lHij |J/:t '^A lAiFU   /16-s( ff D[{,(.r'. L-zh,D t L/:=Hill&r}wt)-z'0)
ri 6 o>f L tr r;. rIA,?'lt-HF wz 0) TTL iFtlit lr r\   t*.H t,cti&) L * f"  ffi (: . FFJrtiR\ycI) t+6 . z r 4
or+1tt (:J t .TTL  l: E*ht6v^7hri6,  sKE i   >r':-LO,f:rL*Vii\A,FntE6Of  i+.,*at;'L,*T^t"
rtil'H-l''L'F-rr(.FlDr'*t:/lD*L/-'"
                                         U>2\ o )trt*.+&F, lJf^r{  . : o TTL rg$tJil " lf   r;
bTo) hf  6ffiiH {:{*5rr'+ LY)*f"
                                                              ( tr 6at    .*/-'. nr'f*+&fr.t11.4fi.qy{i+.ri-h;)Fffi  t:it
Close-ups photography previously required time   to easily take close-up photographs. Close-ups
consuming calculations to obtain the appropri-    greatly reduce the depth of field, so decrease
ate exposure. The TTL photometry system   the aperture of lens or mount the camera on
developed for single-lens reflex cameras elimi-   tripod and use a cable release to ensure stabil-
nates this difficulty, allowing easy operation    ity. Note that blurring perceived at the view-
when using cameras equipped with this system.    finder when exposure is measured with the
 All Sigma lenses are compatible with the TTL   aperture fully open will differ from that when
system allowing even beginning photographers    the photograph  is taken.