System Accessories For The Leica M7; Interchangeable Lenses; Filters; Viewfinder - Leica M7 Bedienungsanleitung

System accessories for the LEICA M7

Interchangeable lenses

The Leica M system is ideal for fast and candid
photography. The range of lenses comprises focal
lengths from 21 to 135 mm and widest apertures
of f/1.

Filters

In black and white photography, filters are used
for controlled rendition of tonal values, for exam-
ple in order to achieve a natural reproduction
of different colors in grey tones, or in order to
improve the appearance of the sky or clouds on
the picture. In color photography, filters can be
used to adjust color rendition to the wishes of
the user or to the spectral sensitivity of the film
employed.
A range of different filters, equipped with stand-
ard filter thread sizes, are available for the current
Leica M lenses, including a circular polarising
filter.
When the exposure is metered through the lens,
any reduction in the quantity of light by the filter is
automatically taken into account. However, films
have different sensitivities in the individual spec-
tral ranges; consequently denser, more extreme
filters may cause deviations from the correct
exposure. For example, orange filters generally
require one stop more exposure; red on average
two stops more. A universally valid correction fac-
tor is not possible as the red sensitivity of black
and white films varies considerably.

Viewfinder

The LEICA Viewfinder for 21/24/28 mm lenses
makes it possible to set the framing for the three
wide-angle focal lengths, for which there are no
bright line frames in the camera viewfinder. The
three settings can be selected using a knurled ring
that engages audibly and perceptibly.
The optical performance corresponds to the high
level of the LEICA M7 viewfinder, is also suitable
for wearers of eyeglasses and offers extremely
high magnification and therefore good recognition
of detail. If the viewfinder is used without eye-
glasses, eye defects can be corrected using the
screw-on Leica M camera corrective lenses. The
eyepiece has a rubber coating to protect eye-
glasses.
The viewfinder's robust aluminium body is avail-
able in black or silver to match the designs of the
camera body.
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