Light meters
PALEC Model PE-2 meter User manual
User manual for PALEC Model PE-2 meter. 12 pages in English. Read the original PDF, download or print a copy without registration.
12 pagesEnglish1.4 MB PDF
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Document details
- Brand
- Palec
- Model / document
- PALEC Model PE-2 meter
- Document type
- User manual
- Language
- English
- Pages
- 12
- File size
- 1.4 MB
- Category
- Light meters
- Document date
- Not specified in catalog
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Page 1 · Read text
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P/RbEG
MI|IIEI PE-z
EXP[|SUNE
METEN
ELECTRICAL PTY. tTD.View original page 1Page 3 · Read text
-I
THE PALEC MODEL P:E.z LIGHT flIEIER.
averaqe PHOTOGRAPHIC The light meter indicafes
/, brightness of the scene to be EXPOSURE METER photographed in uniis of BRIGHT- -*-rt *rte E NESS "Candles per square
should not be ? foot." (This unif confused with the unit of ILLUMI-
GENERAL DESCRIPTION NATION-the " Foot-candle.")
Exposure Photo-Electric The Palec The meter indicafes brightness in Meler the is a device f or measuring
brightness of light reflected from a two ranges,0/80 and 0/800 candles
scene or subieci to be photographed. per sq uare foot. The numerals Then, by means of a slide-rule com- puto.r, the indication of brightness, associaled with the lwo lighf
as shown on the meter, may be con- ranges are automatically changed verted q uickly related fo a range of exposure time values and f stop, or on the scale as the multiplying
lens aperture settings suiiable for the flap is operated. particular type of fitm or plate being
used. MULTIPLYING FLAP A}ID PHOIOCELT.
The Palec Exposure Meter complies The M ultiplying Flap is situated with the provisions of British Standard f',* Spec. 1383:1947, and also lhe American in front of the pholo-electric cell
Standard .Association Specification and baffle system. This fla p is 2.52.22. On following pages is a more detailed ae;rinti1. eq uipped with fwo slots which
admit l/ l0 of ihe light in theView original page 3Page 4 · Read text
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closed position as compared i; SIIDE NULE COMPUTON.
ihat admitted when open. ln this FILM SPEED S(ALE.
way two ranges are provided, the This sca le is ma rked in B.S.
lower range usually for indoor, logarithmic exposure index values.
the higher range for outdoor use. The B.S. system is based on a
ANGLE OF ADIYIITTANCE OF LIGHT. recently developed sensitometricThe flap and baffle syslem is method of determining thedesigned to restrict the angle of exposure speed of PhotograPhicadmiitance of light to approxi-
mately ihat of the average camera material. The method used is
lens, namely 60o, both horizontally described in the British Standard
and vertically. Spec. B.S. | 380: | 947, and the
With the flap open, that is, when exposure index may be converted
using lhe exposure meter in dull to A.S.A. exposure index or British
liqht, the 60 o angle is slightlY 'standard Arithmetical exPosur-
exceeded. This may result in a index values.
slight deviation between readings
CURSoR. of the same subiect laken on e THE
both ranges. The discrepancY, This carries the light scale arrow however, is not critical, and can tS and ihe film speed indicator. be disregarded.View original page 4Page 5 · Read text
THE TIGHT VATUE SCALE. COiIPARATIVE FITII SPEEIi RAIIIIG
The Light Value Scale on com- IABtE.
putor is graduated in the same The Comparaiive Film Speed
units as the light meter. The Raiing Table fitted to the rear of numerical values of all gradua- the case has provision for convert- tions of the light meter scale are ing A.S.A., Weston, and D.l.N. shown, as well as fhose which may
B.S. for use be estimaled below I and at speed rating values to
1.5 candles per square foot. with the computor. A space is
IHE f STOP NUMBER SCALE. these can be easily erased byh provided for PENCILLED notes; This scale carries the range of f rubbing with the finger.
stop numbers based on f/4.
THE ZERO SET AD'USTOR.
EXPOSURE TIME SCALE. This is lo allow adiuslmenl of ihe
This scale is calibrated in seconds meter needle to the zero position and fractions of a second from if at anv time it should be found 60 to l/ 1000 indicating exposure to have shifted. Usually fhe shift, times normally used. Frames per if any, is very small and can be second values are indicated as
follows:- reset wilh a thin coin or screw-
A-8,8-12,C:16,D:24, driver. Close lhe tlap and cover
E-32,F:48,G-64,H_ the openings while adiusting the
96 for use with cine cameras. zero setting.View original page 5Page 6 · Read text
a The combinationwww.butkus.usto use dependt on
the requirements of the scene. lf
the scene is an action one a fast
shutier speed and its corresponding
f stop should be chosen, whereas, il
maximum depth of field is needed Therelilffi'are only lhree steps in the then a small aperture (large f sfop
operation of the Palec Exposure Meter number) is required and the shulter
for mosf normal applicalions; these speed or exposure lime direcily
are:- opposite should be used.
(a) Set Film Speed Indicator on TWO RAl{GES.
Cursor (4) to the B.S. rating of It is advisable to first poini lhe meler
film (see under "Film Speed Setting"). to the scene with the multiplying flap
below (b) Point Exposure Meter at scene closed. lf the indication is
lo obfain the necessary light reading 80, the flap should be opened and the low rdnge brought into operation. on meter.
(c) Rotate lighi value scale (S) of LIGHT AND SHADE.
compufor until the value indicated by The procedure above is responsive to the average brightness of the scene the meter is set opposite the arrow. or subiect and, for most applications, A range of f stop, or aperture will give correct exposure; however,
numbers will then be indicated on if it is required to bring out fhe computor (6) in line with a corres- "high-lights" or shadows in a scene
ponding range of exposure time the following procedure is
values (71. recommended.View original page 6Page 7 · Read text
Thc exposure meter should be taken fILM SPEED SETTI}IG.
into lhe sl,adow or io wiihin a few The Film Speed Indicator on tho requiring obiect brightinches of lhe not to Cursor (4) should be sei lo indicate taken being careemphasis, the 8.S. film sPeed rating cor-cast a shadow on the section being us€d.measured. fne readings lhus obiained rcsponding to thc film being
should be applied to comPutor as To sei the Film Speed Indicator, the
beabove. It Liqht Value Scale (5) should
BRIGHTNESS RAI{GE. rotated, whilst the thumb is firmly
an pressed against the arrow on CursorA furiher method of arriving at
accurate exposure is to measure the (4).
in the brightness of obiecisrange of lf the B.S. rating is not known this can the reading to aPPIY andrcene
midway between those indicated for be obtained by reference to the table
the brightest and darkest sections' of 5p9ed Rating for Kodak films, etc.
isCOLOUR PHOIOGRAPHS. ln cases where the sPeed rating
For colour photograPhY the same known in a sYstem other than B.S',
methods should be followed as des' for example, A.5.A., conversion to
cribed above. However, it is B.S. can be readilY carried out bY important to consider the brightesi reference +o the iable of Comparative to dis- and COLOURS darkesi and Speed Rafings (8) Printed on the particularly and white, black regard plate fixed to the underside of the when ma king close up measurements'View original page 7Page 8 · Read text
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FI LTERS.exposure meler. A card or oiher
straight edged obiect should be placed When using filters the exposure iime
on the position of the known film should be increased by ihe filter
speed rating, at right angles to the f a ctor.
B.S.sca le, and the corresPonding EXTREME BRIGHTNESS.
value also lying on the straight edge t lf the brightness of a subiect exceeds
will be indicated. On rare occasions the range of the high scale with the
when fhe 8.S,. ExPosure Index of a multiplying flap closed (or 800
film or plate is below the range of candles per square foot), one of the
the scale, the Cursor should be set flao apertures should be covered by
to indicate three Points above the holdinq a finger over it. The range
stated index number. The exPosure under these circumstances will be
time obtained f rom the comPutor 0/1500 candles per square foot. ln
should then be MULTIPLIED bY two. rf order to apply the new range' the
When ihe exposure index is above the B.S. fi,m speed setting should be set
scale range, the Cursor should be set up 3 points, and the actual meter
3 points below the number and the scale indication set on the computor
resultanf exposure time DIVIDED by 2 liqht scale and calculaiions carried
f ime. out in the normal manner. to obtain the correct exposure
l0View original page 8Page 9 · Read text
Butkus c=US-04'00' o=ButkusMikeby ou=butkus.org, 23:13:54 Butkus, signed manuals, 2020.09.30 cn=MikeDigitallyDN:cameraemail=mike@butkus.org,Date: Butkus MikeView original page 9
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*'l*l Photo-Electric Celf The selenium PRECAUTIONS. - barrier layer cell used is of the Thc Palec Erposure Meter ls of highest grade available in lhe world, rugged design and made to resist all the usual life of which is not exceeded normal operating conditions, never- by any oiher make. The life of the iheless it should be treaied with the cell may be prolonged by avoiding
care usually accorded precision equip- any undue exposure to excessively ment such as watches, cameras, etc. bright lighl, such as pointing directly 8y observing the precautions set out to the sun with the flap open f or below reliable performance should long pcriods. be obiained over a very long period.
Do not drop lhe Erposure Meter- Dusf on CelI Window-The window
Delicate springs, pivots, and iewelled located under the muliiplying flap
bearings may be damaged by exces- should be kept free of dust, otherwise
sive shock. lt is advisable to make errors could be introduced by reduc-
use of the neck cord when using the tion of admitted light to the cell by
meter to avoid accidental dropping. dusf particles.
l(eep fhe Exposure Meter dry- ttt
The meter should noi be expored to I Ef,ecfs ol Heat-lt is inadvisable to
rain or immersed in waier, it will ,r .l subiect the exposure meter to high resist moisture to a certain exlent hl t femperatures; normal atmospheric
but is nof absolutely water proof. iS"1 femperatures have no effeci; however,
should be taken to avoid tem- The meler should be kepi in the carry- TI care ing case when noi in use. peralures exceeding 125' Fahrenheii. 'ti
t4 "tn l I5View original page 10From the M. Butkus archive. Original publisher and archive notices are retained.
Check the model and edition against your equipment.
PDF verified 2026-10-10.