Nikon Fisheye-NiKkor 16mm f/2.8 Manual De Instrucciones página 10

MOUNTING FILTERS D
Four rear-mounting beyonet-type filters (L 1 Be ,
A2, B2, and 0 5 6) are supplied with the Nikkor-
Fisheye 16mm f/2_8 as standard equipment- To
remove the filter already attached to the lens, press
your thumb and forefinger against the outside rim
of the filte r and rotate it counterclockwise_ To at-
tach a new filter, simply reverse the procedure. If
you inadvertently get fingerprints on the filter
while changing it, use lens cleaning liquid and tis-
sue to wipe it clean. Because of the optical con-
struction of this lens, it is necessary to keep a filter
attached to the lens at all times.
The table below shows the filter factors. No expo-
sure compensation is necessary with the Nikon or
Nikkormat cameras which have thru-the-Iens me-
ters, since their built-in meters read only the light
passing through the lens and compensate automat-
ically for any loss of light.
Film
B/W and color
film
Filter Exposure faclor
Type Designation Day ligh t Tungsten ligh t
Skylight LlSC
Color fil m
I-=L~igh.c:tc:A~mb~.~' -I---~A
2=--_1-'-1.:;2 ,,(
'. ' , ; /3:!. - 1
-+_,,-1.2;,:(," " ~31?----l
only Light Blue 82 1. 2 (1/3) 1.2 (1/3)
s/w film only Orange 056 3.5 (1·5/6) 2 (1)
( ) Exposure corrections
In
(/stops
10
COMPOSING---------E
Using a fisheye lens requires much more planning
and thought about picture composition than does a
conventional lens. The lens not only produces wide-
angle- distortion but it also exaggerates the relative
size of objects to conform to its format: objects
near the center are bigger than those at the edges,
and they show less optical distortion. The entire
field is pushed into the distance and spatial rela-
tions are transformed. And with a slight shift of
the camera, quite new distortions are created. Be
careful not to accidentally include in the picture
unwanted objects, such as the legs of a tripod or
the hands or feet of the photographer.