Nikon Reflex-Nikkor 500mm f/8 Manual De Instrucciones página 10

USING THE FILTERS C , , C
2
Your lens comes with a set of five 39mm-diameter Nikon filters: Ultraviolet (L37C),
Orange (056), Amber (A2), Blue (B2) and Neutral Density (ND4). The ultraviolet
filter is factory-installed into the rear lens mount; the four other filters are stored in
the CA-2 filter case inside the lens case.
Make sure a filter is screwed onto the rear lens mount at all times. You normally leave
the ultraviolet filter on when you wish no particular change in contrast or f/number.
To change filters, simply unscrew and remove the one on the lens and replace it with
one of the four other filters.
Orange Filter 0 5 6 : Used exclusively for black-and-white photography to increase con-
trast. Don't use this filter with color film unless you're striving for special effects.
Amber Filter A2 and Blue Filter B2: Both are used exclusively for color photography.
A2 corrects the bluish coloration that sometimes affects daylight film; B2 removes the
reddish tinge from sunrise or sunset shots.
Ultraviolet Filter L37C and Neutral Density Filter ND4: Both can be used for either
black-and-white or color photography. The ND4 filter gives the effect of stopping the
lens down by two stops.
Caution: The thickness of the glass used in the Nikon filters usable with your lens is
carefully matched to the optical properties of the lens. So, do not use 39mm-diameter
filters of any other make but Nikon. Otherwise, focus cannot be accurate at all.
Type of filter
Color and shade
UV
Orange
Amber
Blue
ND
Designation
L37C
056
A2
B2
ND4
Filter factor
Daylight
IX
3.5X(1 5/6)
Tungsten light
IX
2X(1)
1.2XU/3)
1.2X(l/3)
4X(2)
4X(2)
Note: Number enclosed in parentheses indicates f/stop to be compensated in each
combination.
OBTAINING CORRECT EXPOSURE
Your lens is the fixed-aperture type and will not couple with the TTL exposure meter-
ing system that may be built into some camera bodies. To get the correct exposure,
please refer to the stopped-down exposure measurement section in the camera's in-
struction manual.
Remember that even if you set the camera to its top shutter speed, you won't be able
to obtain correct exposure. A rule of thumb is to use either the supplied neutral density
filter ND4 or optional ND8 or ND2 singly or together; use slower film in extremely
bright situations and faster film in low light.
Note: When the lens is used with the Nikon F-401/N4004*, the camera meter coupling function does
not operate and the exposure indicator LEDs do not appear.
*The Nikon N4004 is sold exclusively in the U.S.A.
CONTROLLING THE APERTURE
To obtain a smaller aperture for the fixed-aperture Reflex-Nikkor 500mm f/8, use a
neutral density (ND) filter. If you use the ND filter with an exposure value of 4X that
comes with your lens, you can achieve the effect of stopping the lens down to f/16.
However, since the ND filter does not actually stop down the lens but only decreases
the amount of light striking the film, depth of field will remain unaffected.
10