Ihagee EXA IIa, Руководство пользователя

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33
construction and also true telephoto lenses;
they have a long focal length and make distant
objects appear nearer; they therefore record
a relatively narrow section of the subject on a
larger scale (Fig. 32). They also tend to reduce
the effects of perspective. These lenses are fre-
quently used for taking portraits, in child pho-
tography, for photographing sporting events,
wild animals and also for landscape work and
many other types of photography. Fig. 33 shows
the E XA IIa fitted with the popular Trioplan N
f2.8/ 100 mm lens with fully-automatic pressure
diaphragm.
lf an ultra-high-speed lens is required, the Jena
B f1.5/75 mm lens is also obtainable.
The standard lens is removed in the manner
already described and the special-purpose lens
fitted in its place. For certain lenses of very long
focal length the outer bayonet of the EXA IIa is
employed. The distance-setting scales of these
special lenses are also graduated in meters and
feet, indicating the distance from the camera
back to the subiect.
Fig. 34