Nikon FG - Manual (Page 12)

NIKOH AND NIKKOR LENSES FOR THE NIKON FC
The lenses usable for the Nikon FG are all the Al-type
Nikon/NIkkor lenses, including most of the Al con­
verted lenses, certain Reflex Nikkor and PC Nikkor
lenses. Non-AI Nikkor lenses and lenses of other
manufacturers which do not have the Al feature must
not be forcibly mounted on the FG. Attempts to mount
such lenses will damage the camera's indexing
mechanism. Note that in addition to non-AI lenses,
the following lenses cannot be used:
Al-converted 55mm f/l .2 (No, 184711 ~970110)
Al-converted 28mm f/3.5(No, 625611^999999)
Al-converted 35mm f/1.4 (No. 385001 ~400000)
Fisheye Nikkor 6 mm f/5.6 (all lenses)
Fisheye Nikkor 10mm f/5.6 OP (all lenses)
Reflex Nikkor 1000mm f/11(No. 143000 or smaller)
Reflex Nikkor 2000mm f/11 (No. 200310 or smaller)
PC Nikkor 28mm f/4 (No. 180900 or smaller)
PC Nikkor 35mm f/2.8(No. 851001~906200)
Zoom Nikkor l80~600mmf/8 ED
(No. 174180 or smaller)
Zoom Nikkor 200~600mm f/9.5
(No. 301922 or smaller)
Zoom Nikkor 360'''1200 mm f/11 ED
(No. 174127 or smaller)
Focusing Unit AU-1
When using the Teleconverter
TC-200,TC-201,TC-301 or
TC-14A
Exposure compensation, which is required
when using Nikon Al-type cameras with lenses
having a maximum aperture faster than f/2 or
faster than f/1.8 (when using the TC-14A), is
not necessary when using the FG in its P or A
mode. In the A mode, however, note that the
actual shutter speed will be faster than that
indicated in the viewfinder by less than one
step. Therefore, before shooting, be sure that
the shutter speed LED(s) in the viewfinder
indicates a speed slower than 1/250 sec. In
the manual mode, exposure compensation
using the ASA/ISO film speed dial is necessary.
See the teleconverter's instruction manual for
complete details.
much light as 1 /60 sec.
Note: W hen you set the shutter speed/moOe selector dial to
either M90 or 8. the exposure meter does not work end the
viewfinder LEDs don't iight.
M90(l/90 sec.)
At this setting, the shutter operates mechanically at
1/90 sec., and is used mainly when the battery is
drained and other shutter speed modes are not
operable, and for flash photography with an elec­
tronic flash.
В (Bulb)
At this mechanical setting, the shutter curtains ®
remain open as long as you press the shutter release
button. В is used for long time exposures.
Note: W hen the shutter speed/mode selector dial is set
somewhere between 1 sec. and M90 and the shutter release
button ® is accidentaily depressed, the shutter curtains re­
main open. If the film is rewound in this situation, every frame
will be re-exposed, damaging the pictures taken. Therefore,
before rewinding make sure that the selector dial is not in this
intermediate position.
Exposure Measuring System
The Nikon FG employsTTL(through-the-lens) cente
weighted full-aperture exposure measurement whic
measures the amount of light passing through tt
lens with the aperture fully open, thus always assu
ing a bright finder image during shooting. Exposui
measurement emphasis is placed especially on it
brightness in the 1 2 mm dia. central area (refer 1
page 15), although the meter reads the light over tt
entire focusing screen. Thus, correct exposure
assured when shooting with the main subject situate
in this central area.
On both P and A modes, the FG employs instai
taneous stopped-down exposure measurement. Th
measurement system sets the optimum combinatic
of shutter speed and aperture at the actual spl
second moment of picture taking, assuring accura'
exposures even if the light changes at the very la;
instant. A sensitive SPD (silicon photodiode) is use
to measure light intensity.