Graflex XL Lens Depth of Field Reference guide

Document details

Brand: Graflex
Model / document: Graflex XL Lens Depth of Field
Document type: Reference guide
Language: English
Pages: 3
File size: 0.5 MB
Category: Lenses & filters
Document date: Not specified in catalog

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Page 2 · Read text

Dephg#lgwDepth of Field is ihe lerm used to designote the disionce between lhe neorest ond forthest
obiects from the comero which oppeor to be solisfoctorily shorp on lhe ground gloss 6f the
comero, ond os o result in the finished contoct print.
Depth of Field is dependent upon the following voriobles:
' (o) Focol length of the lens.
(b ) Dio p h r o g m o p e n i n g .
(c) Distonce from the lens to the obiect focused upon.
(a) fne distonce from which the finished print is viewed.
(e) ttre viewer's slondord of permissible degree of shorpness.
GRAFTEX,INC. A SUBSIDIARYOF GENERALPRECISIONEQUIPMENTCORPORATION
ROCHESTER,NEW YORK 14603, U.S.A.
ln Conqdo: Grqflex of Cqnodq Limited | 47 Simcoe Sl., Toronto l, Onlnrio
F
DepthDephg"fflgwof Field is the term used to designofe the dislonce belween the neorest ond forlhest
obiects from the comero which oppeor to be sotisfoctorily shorp on lhe ground.gloss of the
comero, ond os o result in the finished contoct print.
Depth of Field is dependent upon the following voriobles:
(o) Focol length of the lens.
(b ) Diop h r o g m o p e n i n g .
(c) Distqnce from the lens to the obiect focused upon.
(d) The distonce from which the finished print is viewed.
(e) The viewer's slondord of permissible degree of shorpness.
GRAFIEX, INC. A SUBSIDIARYOF GENERATPRECISIONEQUIPMENTCORPORATION
ROCHESTER,NEW YORK 14603, U.S.A.
In Cqnqdo: Groflex of Conodo Linnited| 47 Simcoe Sl., Toronlo l, Onlorio
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Page 3 · Read text

l8(lMMLENS
     A circleof confusionof .003"wasusedto computethistable.Thedepthof fieldvaluesobtained
     fromthecomputationsarefor criticaldefinition.Depthof fieldcanbeconsideredto besomewhat
     greaterfor generalphotography.
       Distance                       DEP THOF FIEL D_ INFEE T
      Focused
      0n (Feetl   {14.8      {tq R       f18         f lrr           f 116        f122         f 132
      INF 100 to inf 250 to inf      I U to inf 120 to inf 90 to inf 60 to inf 45 to nf
      100  7 R  to 150 70 to 170 65 to'240 55 to 550 45 to inf 40 to inf 30 to nf
         JU  43 to 60 42 to 62  39 to 70 36 to 85 32 to i20 28 to 250 Z4 to nf
       35 31]to 391 30[to 41 29|to 43  27?5to 48 25 to OU 23 to 80 20 to 170
       25 23[to 27! 22i to 27i 22 to 28il 2L to 31 19;to 34 18*to 41 16]to 55
       20  18[to Zltt 18.?to ?Ii 18*to 22+ 17*to 23116rrto 25115|to 29 14|to 35
                                                                     I t s r 2 14| to 15i, 13;;to 16+ 13] to 16; i3 to 17.;12] to 1e+11'}to 2?         l5  14] to
         t2    lll to 12+         11]to 12,: l1i to 13; 10ito 13"'10|to 14+9[ to t6
       10   9j to 101 9frto 10+ 9,1toi0,  9l to 10t 9f to i1+ 83to 113 8l to 12+



       Form 1898-866                                                                   Printed in U.S.A.

    100-101MMLENS
      A circleof confusionof .003"wasusedto computethistable.Thedepthof fieldvaluesobtained
     fromthecomputationsarefor criticaldefinition.Depthof fieldcanbeconsideredto besomewhat
      greaterfor generalphotography.
         Distance                     DEP THOF FIE L D-IN FE E T
        Focused
       0n (Feet)                  f 13.5-f14.5*
                 111toinf 80 to inf  56 to inf  41 to inf 28 to inf
                       34i to 89 30ilto 131 2612to 423 22] to inf 18rLto inf
                       20r!to 32 19{to 36    lii  to 44  15rzto 63  131-to 201
           133to t6i  13.!to 17|          11i,to 20111 to 23] 9; to    83to 53
                9i toiOl  9l to 10;            8i to 12+ 8l to 13* 7i to       6; to i8!e
                5i to 6l   4; to 6i            5l to  6; 5 i t o 7  5 t o     43to 8i
                                           3?.to                    3i to  4?j 3* to 4*
                                               2i to               2j to 3+ 2l to 3i
                                               2"]to              2] to  2i  Ztsto 2i
     *Depthof fieldis computedal{14.0.Asdifferencesares0small,usea valueslightlylessthanthat
     shownwhensetat f/3,5andslightlymorefor f/4.5.
      Form 1896-866              www.orphancameras.com                 Printed in U'9.A.
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