Graflex National I User manual

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| National }
| GRAFLEX |

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_B& L Tessar 7.3. 5 Lens | 2

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Made in U.S.A. -

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| FOLMER GRAFLEX CORPORATION |
; ROCHESTER, NEW YORK

Instructions for Using the
National GRAFLEX

I. Your Camera

OU have in National Graflex, a camera which

has been designed and constructed to permit
your obtaining all of the remarkable results which
the name Graflex signifies.

A. The Lens.

The National Graflex lens is of the Tessar Series
IC type, made especially for this camera. To those
who are familiar with lens qualities this will stand for
the best.

The focal length is 75 millimeters or three inches.

The speed is /.3.5.

The diaphragm settings are marked /.3.5, 4, 5.6,
8, 11, 16, 22. Each number from 5.6 to 22 designates
an aperture approximately one-half as great as the

preceding number. For example, /.5.6 is half as

great as /.4 and about twice as great as /.8.

On the ring behind the diaphragm markings are
three numbers 4, 8 and 16. These indicate settings
for hyperfocal distances (see definition on page 13)
at the diaphragm numbers corresponding thereto.
(For using these three numbers see pages 13 and 15.)

]

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Digitally signed by Mike Butkus
                                          DN: cn=Mike Butkus, o=Butkus camera manuals,
                                               ou=butkus.org, email=mike@butkus.org, c=USMike Butkus Date: 2024.04.07 11:15:42 -04'00'