Film cameras
Praktica IV / IVB User manual
User manual for Praktica IV / IVB. 22 pages in English. Read the original PDF, download or print a copy without registration.
22 pagesEnglish2.7 MB PDF
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Document details
- Brand
- Praktica
- Model / document
- Praktica IV / IVB
- Document type
- User manual
- Language
- English
- Pages
- 22
- File size
- 2.7 MB
- Category
- Film cameras
- Document date
- Not specified in catalog
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Page 2 · Read text
The PRAKTICA lV is o single-lens reflex comero for the 24X36 mm
picture formot. The firmly built-in pentoprism reveols on upright,
. loterolly correct ond porollox-free finder imoge.
Speciol feotures of the PRAKTICA lV:
Ropid wind lever
Coupling of shutter wind ond film tronsport
Lock ogoinst double exposures ond blonks 't
Focol-plone shutter f or . 1f 2 sec. to 1/5es sec, ond B
Synchronizotion for electronic flosh ond bulbs
Interchongeoble lenses with 20 mm to 1000 mm focol length
Automotic diophrogm
Wide ronge of occessories
Subsequent model developed from the PRAKTICA lV: PRACTICA lV B with built-in photoelectric exposure meter 'tView original page 2Page 4 · Read text
Venmo @mike-butkus-camera Ph. 2083 PayPal Name Lynn@butkus.org www.PayPal.me/lynnbutkusView original page 4
Page 6 · Read text
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The PRAKTICA lV is o single-lens reflex comero for the 24X36 mm
picture formot. The firmly built-in pentoprism reveols on upright,
loterolly correct ond porollox-free finder imoge.
Speciol feotures of the PRAKTICA lV:
Ropid wind lever
Coupling of shutter wind ond film tronsport
Lock ogoinst double exposures ond blonks
Focol-plone shutter ior 1f2 sec. to 1/56s sec. ond B
Synchronizotion for electronic flosh ond bulbs
Interchongeoble lenses with 20 mm to 1000 mm focol length
Automotic diophrogm
Wide ronge of occessories
Subsequent model developed from the PRAKTICA lV:
PRACTICA lV B with built-in photoelectric exposure meter
-View original page 6Page 7 · Read text
The following 1. Remove comero bock.
points deserve 2. Insert film. Teeth of tronsport sprocket must cotch film per- speciol ottention forotion. The film must be drown tightly ocrdss the picture(obridged instructions) note (octuote rewind knob (2) to tighten it)
3. Close comero bock.
4. Set film speed indicotor (3) on film speed or symbol of film in
co mero.
5. Cock shutter twice ond releose it eoch time (using winding
knob 19 or ropid wind lever 21).
6. Set exposure counter (9) on ,,0".
7. Set the exposure speed by meons of speed setting ring (5).
Only for PRAKTICA 7 o) Lift rewind knob (28) up os for os it will go. Set mork of
lV B stop volue diol with setting knob (30) ogoinst the correspond-
ing speed. Push rewind knob in'
Only for PRAKTICA 7 b) Direct comero towords object. Turn speed setting diol (31)
lV B until follow pointer (23) coincides with meter needle (24).
Hoving found the required combinotion of shutter speed ond
operture, set the controls in occordonce with 7',8' ond 10'View original page 7Page 8 · Read text
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8. Move speed groups setting knob (16) to the mork for long
or short exposure speeds (red or block triongle).
9. Cock the shutter (full turn of winding knob 19 or ropid wind
lever 21).
10. Turn operture setting ring (11) to diophrogm stop required
for exposure,
11. Focusing is performed by octuotion of the distonce setting
rins (13).
12. To moke the exposure, depress the releose knob (10) steodily
os for os it will go.
13. After the lost exposure or1 the film lift the upper section of
rewind knob (2) (in PRAKTICA lV B the rewind cronk),
depress rewind releose knob (17), ond rewind the film in
the direction of the orrow until resistonce is felt,
14. Open the comero ond remove the film.
Beside these items it is, of course, importont to study the
complete instructions for use corefully.View original page 8Page 10 · Read text
www.butkus.us A surfoce-silvered mirror diverts the lens roys so thot the imoge oppeors on the ground gloss screen. When the body releose is depressed the reflex mirror moves out of the poth of roys ond mosks ony stroy light coming on to the ground gloss screen, so thot the roys moy foll on to the picture gote. As soon os the mirror hos reoched its uppermost position the shutter is opened for the exposure. Toking lens ond finder lens being one ond the some, there is no donger of porollox error. Everything thot you see in the view- finder must necessori ly oppeor on the film, even in extreme close- ups. This mokes it possible to work with lenses of vorious focol lengths, ond with occessory equipment, without the need for ony odditionol viewing ottochments.View original page 10
Page 11 · Read text
L
Inserting the film Any kind of perforoted 35 mm film (block-ond-white or color) in
the usuol cortridges moy be used. Push the bock lock (1) upwords
ond remove the comero bock, Pull out rewind knob (2) os for os
it will go. Floce the full cortridge into the spool chomber (22) with
the cooted side of the film focing the picture gote. Push rewind
knob (2) in ogoin, ot the some time moving it to ond fro to
couse the cotch to engoge in the core of the cortridge. lnsert
the beginning of the film into the slits of the toke-up spool (20),
bend down 3 mm to 4 mm ond drow it bock to orrest the bend
in the slit. Rotote winding knob (19) to wind the film on to the
toke-up spool (20) until both sides of the film perforotion cotch
the teeth of the tronsport sprocket (18). Pull the film tight by
turning the rewind knob (2), Reploce the comero bock into its
right-hond groove ond press it ogoinst the comero body to moke
it snop in.View original page 11Page 12 · Read text
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Setting the film Set the DIN or ASA volue of the filnr in the comero on the film
speed speed indicotor (3) on top of the rewind knob (for block-ond-white
film the DIN or ASA numerol, for color film the corresponding
symbol).
The symbols on the film speed indicotor (3 ond 26) signify the
following:
B & W film (only on PRAKTICA lV B)
Reversol color film for doylight
Reversol color film for ortificiol light €E{}o
@qt NegotiveNegotive colorcolor filmfilm forfor ortificioldoylight light
Only for PRAKTICA Pull out rewind knob (28) os for os it will go, Rotote stop volue
IVB diol with setting knob (30) to bring morking point of window (27)
to coincidence with the speed volue (DlN or ASA) of the film
in the comero. Push rewind knob (28) in ogoin.
Cocking the shutter Turn winding knob (19) in the direction of the orrow os for os it
will go, or give the ropid wind lever (21) o full swing. The shutter
is thus cocked, the film is odvonced by one frome, the counting
mechonism tronsported to the next number ond the mirror moved
into the poth of roys coming in through the lens.View original page 12Page 14 · Read text
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The coupling of shutter wind ond film tronsport eliminotes double
exposures ond blonks. Should o double exposure be intended the
speed setting ring (5) need only to be turned clockwise os for
os it will go ofter the first exposure hos been mode. The shutter
con thus be releosed o second time without the film hoving been
odvonced. The shutter (focol-plone type) is cqlibroted in speeds
from 1f2 sec. to 1/5es sec. ond ,,8" (ony desired length of time).
fAttentionl Avoid inodvertent pressure on the rewind releose knob (17) while
cocking the shutter, since this would couse on overlopping of the
pictures.
Setting the Cock the shutter ond releose it (body releose 1O). Repeot this
exposure counter procedure. Set the exposure counter (9) ogoinst the red mork by
turning the milled ring in the center of the knob.
Determining Use o light meter or exposure chort to find the correct shutter
shutter speed speed ond operture setting for the existing light conditions ond
ond operture the speed of the film in the comero.View original page 14Page 15 · Read text
Only for PRAKTICA Direct the comero towords the object. Rotote speed setting diol (31)
IVB to bring the yellow follow pointer (23) into coincidence with the
meter needle (2a) in window (25). The speeds on diol (31) thus
come to stond ogoinst the stop volues on diol (30). One of the
resulting shutter/operture combinotions moy be used for the ex-
posure ond tronsferred to speed setting ring (5) ond operture
setting ring (11).
The red ond block speed numerols on diol (31) correspond to the
volues given on exposure speed scole (B). The blue numerols on
speed diol (31) indicote full seconds (B setting).
Setting the Lift speed setting ring (5) ond rotote it until the red mork stonds
exposure speed opposite the desired exposure speed. The setting ring clicks in
when you let it go. (1f2 sec. ond 1f25 sec' click into the some hole).
Block figures indicote short exposure speeds:
25:1f25 sec., 50: 1/5s sec., 100: 1/166 sec', 200: 1f2ss sec.,
500 : 1/5ss sec.
Red figures indicote long exposure speeds:
1/1s sec. 1,/5 sec.,10 : Z: 1/z sec., 5 :
Eoch stop indicotes one holf of the next longer speed or double
the next shorter speed on the scole.View original page 15Page 16 · Read text
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The t, symbol (speed 1/a6 sec.) is meont for exposures with electro-
nic flosh (see porogroph on flosh synchronizotion),
The ,,B" setting is for time exposures.
lf the exposure is to be mode ot ,,B" turn knob (16) for the speed
groups setting to the block triongulor mork (6). The shutter then
remoins open os long os the releose is being depressed. (Coble
releose ond tripod should be used for time exposures.)
Attention! When chossing the exposure speed for instont exposures, set the G
triongulor mork on knob (16) for the speed groups setting ogoinst
the red triongle (7) or the block triongle (6) on the comero top,
in occordonce with the desired shutter speed (red or block
numerol).
The speeds moy be set before or ofter the shutter is cocked. The
speed setting ring moy be turned in either direction.
Setting the operture On lenses with outomotic diophrogm the operture setting ond
tensio ring hos to be pushed bockwords ond rototed so thot
the desired operture number meets the red triongulor mork ond
clicks in, Wind the ring up clockwise (os seen from the front) os
for os it will go. On releose of the shutter the diophrogm moves
to the pre-set stop before the shutter runs down.View original page 16Page 17 · Read text
www.butkus.us On lenses with outomotic pressure diophrogm the operture num- ber hos to be set ogoinst the red triongulor mork. The diophrogm closes outomoticolly to the pre-set operture when the shutter is releosed. lf you wish to check the depth of field with the diophrogm closed down you turn the ring in front of the operture ring from the red to the block morking. The 50 mm Jeno T lens, f/2.8, with outomotic diophrogm, is equip- ped with o press lever (14), by meons of which the lens moy be stopped down for checking purposes. The lens remoins stopped down to the pre-set volue os long os the lever is depressed'View original page 17
Page 18 · Read text
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Automotic diophrogm On removol of the lens from the comero ond with the mirror
mechonism in upword position, the mechonism for the outomotic diophrogm
releose becomes visible inside the lower port of the comero body'
The rnechonism con be disconnected by moving the red knob to
the right ond put into working position ogoin by moving the red
knob to the left, lf lenses without outomotic diophrogm ore being
used in the comero the mechonism hos to be disconnected.
Focusing Cock the shutter. Turn distonce setting ring (13) to the right or left
until the imoge on the ground glosss screen of the prismotic view-
tinder is obsolutely shorp.
Tol<ing lens ond viewfinder lens being one ond the some, there
is no donger of porollox error. Spectocle weorers moy insert
corrective glosses in speciol mounts (r"ubber eye cup) into the
eyepiece (f5) of the viewfinder, which olso occepts other speciol
finder ottochments.
Lenses with pre-set diophrogm ore set to the desired number by
meons of the odjustoble operture setting ring. You moy now focus
with the lens ot full operture ond return to the preselected dio-
phrogm stop without removing the comero from your eye.
Further detoils moy be found in the printed motter issued by the
lens monufocturers.
The depth of field con be reod from the depth of field scole on the
lens mount, To the left ond right of the triongulor mork ore dio-
phrogm numbers, ond the distonce figures below these diophrogm
numbers show the ronge of shorpness.View original page 18Page 19 · Read text
Releosing the shutter Depress the body releose (10) steodily until the shutter runs down.
In the center of the body releose is o threod to occept o coble
releose.
Removing the film After the lost exposure on the film in the comero, depress rewind
releose knob (17). Lift the upper section of rewind knob (2) ond
turn it oside until it clicl<s in, thus forming o cronk which is turned
in the direction of the orrow until the exposed film is wound bock
into the. cortridge (noticeoble resistonce).
Only for pRAKTICA lV B Swing out rewind cronk (29) ond wind the film bock in clockwise
direction. Remove the comero bock. Pull the beginning of the
film out of the toke-up spool. Toke the cortridge out of the comero.
f Attention! Do not remove the film in bright sunlight.'
Exchonging lenses Toke hold of the lens mount ond turn it out onti-clockwise. The new
lens is inserted occordinglY.
All interchongecble lenses hoving o metric threod 42x1 mm ond
the o focol length from 20 mm to 10oo mm moy be used in
PRAKTICA. Mind the push-on or screw-in meosurements for the
use of filters.View original page 19Page 21 · Read text
Mointenonce ond core As high-closs precision instruments, the PRAKTICA lV ond PRAK-
TICA lV B must be protected ogoinst shock ond Cust.
From time to time dust ond film deposits hove to be removeci
from the spool chombers ond picture gote with o soft lens brush.
QAttention! Do not touch the opticol ports (lens, viewfinder ond ground gloss of pentoprism) with your fingers.
These ports should be cleoned with o soft brush or soft, smooth
piece of linen. ' The surfoce mirror in the comero must be dusted very corefully
with o fine lens brush only.
Accessories for Everreody Cose Focusing Slide
PRAKTICA lV Coble Releose Focusing Telescope
ond PRAKTICA lV B Sunshodes, Filters, Angle Finder, Rubber Eye Cup
Corrying Strop, odjustoble Set Universol Tripod
of Intermediote Rings Copying Stond
with Speciol Intermediote Tronsporency Copying
Ring ond Double Coble Equipment
Releose, Set of Intermediote Connecting Piece for Microscope
Rings with Plunger, Field Lens with Cleor Gloss
Intermediote Tubes Spot ond Hoirline Cross
Close-up Bellows
Attochment
The detoils given here ore subject to olterotions whidr moy result from further develop-
ment in the monufocturing process.
Pleose reod these Instructions for Use corefully since we con occept no liobility for
domoge coused by improper hondling of the equipment.View original page 21Related documents and language editions
From the M. Butkus archive. Original publisher and archive notices are retained.
Check the model and edition against your equipment.
PDF verified 2026-10-10.