| Enlarging
Generally the enlargment of 120 negatives is similar to 35mm, but there
are some differences. Where as the enlarger lens generally used with 35mm
matches the standard camera lens (50mm), with 120 this can be from 75mm
to 105mm depending upon the format used. Again the lens would matche
the standard taking lens of the camera and with 6x4.5 is 75mm, 6x6 is 80mm,
6x9 is 105mm.
Because of the larger size of the film, enlargers designed only for
35mm film will not take 120 negatives but enlargers designed for 120 can
also 35mm. But the photographer will have to make sure that the lens is
large enough to cover the image and no vignetting takes place when the
120 film is to be printed. In this case, there should be two neg carriers,
one for the 35mm film and the other for the 120.
It is also important to make sure that the correct condenser lens is
in place or the rays of light may not be illuminating the whole neg. Like
wise using the 120 condensers with 35mm will spread the rays wider than
necessary and mean that you will have to use a longer exposure time.
Caring for equipment
It is very important to remember that all this equipment is expensive
and can be damaged easily. Both camera and enlarger lenses can be irreversibly
damaged and scratched as can the condenser lenses of the enlarger. Handle
with great care and keep glass surfaces of the lenses covered and away
from dust at all times. Camera equipment, while often strongly made does
not bounce.
As a photographer, it pays to be come aware of when a knob or screw
has become loose and have it fixed before it falls off and is lost. Become
conscious of the pressures needed to wind on the film, the subtle sounds
the camera makes, and when it sounds wrong or different, have it checked
out before it goes SNAP! If you do have a problem, tell some one straight
away, often minor faults have become major ones in the wrong hands.
Camera equipment is manufactured to very fine tolerances and if something
does not fit right there is probably a reason that force can not answer.
Examine the problem again closely and PLEASE ASK some one who knows, that
is the meaning of wisdom, knowing when you are wrong.
Use a neck strap where you can, keep lens caps in place, keep the camera
in a protected bag when possible, and remember you are carrying glass and
precession mechanics; would you carry a milk bottle as casually as some
people might carry a camera?
Good shooting.
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