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Filter Magic

[Front cover]
Put sparkle in your pictures with...   
Educational Services Division, Argus Cameras.   

[Page One]   
If you're looking for  a way to put some "sparkle" into the pictures   
you've been taking lately...something that will pack a real   
punch...a good FILTEr or two could do just that!   

What's more...these circles of colored glass can work this magic   
with no more effort on your part than it takes to slip one off the   
lens, and the other one on!   

Simple to use...with either black-and-white or color film...   
FILTERS help your film "see" the scene you are shooting just   
as your eye does.   

What does that really mean...and what can filters do   
for your pictures?   

A MEDIUM YELLOW filter, for example, will drama-   
tize those "fleecy" clouds and give a more natural look   
to at least 75% of all black-and-white scenic pictures.   

A LIGHT GREEN filter used with black-and-white film   
will bring out the details in trees and shrubbery, and out-   
door portraits taken with this one will have a truly   
"lifelike" look to them.   

A POLARIZING filter, to mention another one (used   
with either black-and-white or color) will capture dramatic   
blue skies, and cut down on reflections bouncing off water,   
glass, or shiny surfaces.  This filter alone can put your   
black-and-white and color pictures in a class by themselves.   

The charts on the following pages will help you discover, in a   
minute's time, how truly simple it is to improve YOUR pictures   
with the aid of a few simple filters!  Select one or two to begin with   
and add others as you become better acquainted with them.   

[Page Two]   
Such as Verichrome Pan, Supreme, Plus X, etc.   

"To Do This                 Use These Filters     And Increase Exposure"   
take good general             MEDIUM YELLOW         1-2 stops   
"scenic and snow shots"   

take good foliage shots,      LIGHT GREEN           2 stops   
indoor and outdoor   

make very dark dramatic       MEDIUM RED            3-4 stops   
skies and moonlight effects   

reduce reflections and/or     POLARIZIN             2 stops   
darken sky   


"(35mm only)                 at 1/25 second is basic exposure in sun-"   
"                            light...exposure meters will not measure"   
"Not generally recommended   infrared light"   
for normal photo use   
without red filter   

Filters for use with black-and-white film require an increase in   
exposure.  Since each "f/stop" on your camera lens gives approximately   
twice the exposure of the one before it, changing this stop as   
suggested in the chart is a convenient way to increase exposure   
when necessary.   

[Page 3]   

To Do This                   Use These Filters         And   

take color pictures              NO FILTER   
in sunlight   
To increase   
take                             SKYLIGHT            exposure properly   
color pictures                   or                  with filters   
in shade                         UV-16               that require it,   
reduce                           SKYLIGHT            directions   
haze in                          or                  supplied with   
distant scenes                   UV-16               film and   
reduce                           POLAR-              of your choice   
reflection and                   IZING   
darken skies   

Film manufacturers recommend DAYLIGHT type film for outdoors.   
If you prefer to use FLASH type film outdoors, use the CON-   
VERSION filter (85C type) recommended by the film manufacturers.   

The slight additional exposures required when using some filters   
with color film (one-third or two-thirds of an F/stop)...are   
simple to make.   

Just move the lens setting one-third or two-thirds of the way   
between the lens opening you would use without a filter   
and the next largest lens opening.  (You increase exposure by   
moving from large "f" numbers to smaller ones...i.e.: f/8 to f/5.6)   

[page 4]   

for COLOR FILM with FLASH   

to do this                   use these filters          and   

clear flashbulbs                NO   
with all flash                  FILTER   
type color film   
To increase   
blue bulbs with                 NO FILTER            exposure   
all daylight type                                    properly   
color films                                          with filters   
that require it,   
electronic flash                NO FILTER            follow   
with all daylight                                    directions   
type color films                                     supplied with   
film and   
photoflood bulbs                82A                  filters   
and all flash type                                   of your choice.   
color films   

Film manufacturers recommend using FLASH type film for pictures   
indoors. If you prefer to use Daylight type, use blue flashbulbs such   
as Press 25B and no filter.  Sylvania M2 flashbulbs (with proper   
reflector) need no filter, and Sylvania SF gas-filled flashbulbs   
require an 82B type filter with Flash type color films.   

When not using your filters, protect them from scratches and   
chipping...keep them clean and free from dust, grease, and   
fingerprints.  (A camels hair brush first, and then some lens tissue   
will work fine.)   

[Page 5]   
To make certain you are able to use accessory filters and close-up   
lenses with your camera, several manufacturers have provided   
special "adapter rings" in a wide variety of sizes and types to   
fit all camera lenses.   

Generally, the adapter ring slips over the lens mount, or screws   
into special threads provided just inside the lens mount; they are   
usually described in terms of "millimeters," which simply in-   
dicates the exact diameter of the lens mount.   

The filters are most often described by the word "Series" (i.e.   
Series IV, V, etc.)   

If you own an Argus or similar type camera with the same size   
lens mount, you will find the chart below of considerable help   
in selecting the proper adapter ring and filter attachments.   

adapter ring & lens accessory size   

CAMERA              ADAPTER RING           ATTACHMENT   

C44                   Bult-in               Series V   

C4                    33mm slip-on          Series VI   
(screw-in type available)   

C3                    41mm slip-on          Series VI   
(screw-in type available)   

A4                    30mm slip-on          Series V   

C20                   39.5mm slip-on        Series VI   
                      or set-screw   
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -   

"        75        28.5mm slip-on        Series V"   

"        Super     35mm slip-on          Series VI"   
"Reflex  75"   
"        40        30mm slip-on          Series V"   

Your local photo dealer carries a complete line of adapter rings made by   
several manufacturers and he will be very glad to help you select the ones   
for your camera.   

[Page 6]   


In black-and-white prints, FILTERS LIGHTEN SUBJECTS   
that are the same color as the filter.  For instance, a red filter will   
cause a red object to look very light in the black-and-white print.   

There are four general types of FILTERS to use with COLOR   

(1) POLARIZING filters are used to reduce reflections and   
glare from objects, and to darken skies.   

(2) ULTRAVIOLET or HAZE filters, such as a Skylight or   
UV-16, help to reduce the blueish haze found in distant   
scenes, and in pictures taken in the shade.   

(3) LIGHT-BALANCING filters, such as a CC-30M, make   
small and minute changes in the color balance of the trans-   
parency, and are most often used in exacting color work.   

When using a FILTER with a SUPPLEMENTARY LENS,   
install the supplementary lens next to the camera lens, and the   
filter closest to the subject.   

If you use a LIGHT METER and a FILTER, there is a simple   
method of compensating for the filter factor.  Simply divide the   
film speed of the film by the filter factor (the factor is listed in the   
film instruction sheet and the filter instruction sheet).  Set this   
result on the light meter, and use the meter as you usually would.   
For instance, say you were using Plus X film and a K-2 filter.   
Normal film speed is 80, and the filter factor is 2.  Divide 80 by 2,   
the result is 40.  Set this on the film speed dial on the light meter.   
Use the meter normally, as the filter factor computation has been   
allowed for.   

[Back cover]   
If you have any photographic problems with which we can help,   
won't you please write to...   

Educational Services Division   
Division of Sylvania Electric Products, Inc.   
Ann Arbor, Michigan.