Nikon F3HP, 1412059 instruction manual EV Range of the Camera

Page 34

-EV RANGE OF THE CAMERA-continued-------

The camera's meter may be used only within the shutter speed range covered by the exposure value (EV) range of the meter, which varies with the aperture and ASA settings.

The chart on page 35 shows the relationships between the flstop, shutter speed and film speed, indicating the slowest functioning shutter speed (for metering purposes) with any film speed/aperture combination .

Careful attention to the following instructions will assure precise exposure, automatically, over the complete expo- sure control and meter range capability of your Nikon F3.

• Auto exposure control at full aperture

For example, with an fll.4 lens and ASA 100 film, the

34automatic shutter will function down to one second with the lens set at fll.4, and proportionately slower as the aperture is closed.

Using a standard of ASA 25 film, you may be assured of at least a four-second speed regardless of the aperture of

• Auto exposure control with stop-down metering

When using a bellows or other extension equipment which disengages the meter coupling device, it is neces- sary to revert to stop-down metering . Certain limitations are imposed in this mode.

As lens-to-film distance is increased, the metering range (EV range) changes proportionately . For example, when an fl21ens is used at 2: I reproduction (twice life-size) the effective flnumber is fl5.6. When used at fiB, the effective flnumbe r is fl22.

When pictures are taken under minimal light levels, it is desirable to use a high -speed film (ASA 160 or higher). Using Tri-X at film speed 400 with stop-down metering, with an effective flnuonber of fiB, the shutter speed range would be from 114 second to 112000. Should the light level drop below EV 6, it would be out of the shutter speed range of the meter.

the lens used as long as the lens is set at full aperture

(refer to Table) ..

Using ASA 400 at fll.4, the slowest speed is 114 second; however, as the aperture is closed down, the functioning shutter speed becomes progressively slower until we reach fiB when the slowest speed of eight seconds is functioning.

Table

Slowest shutter speed at full aperture with any lens

ASAspeed

Slowest shutter speed

(sec.)

 

 

6400

 

1160

3200

(4000)

1130

1600

 

1115

800

 

1/8

400

 

114

200

(160)

112

100 ( 80)

1

50 ( 64)

2

25

 

4

12

 

8

Page 33 Page 35
Image 34
Page 33 Page 35
Contents Nikon Nomenclature Page Table of Contents Foreword Install the batteries Remove the battery Chamber lid @Replace the battery Chamber lid Check battery power Move the power switch to uncover the red dotTouch the shutter release Button @ lightly Mount the lens onto Camera Install the film cartridgeOpen the camera back Insert the film leader in the takeup spool Close the camera back Take up the film slack Make blank exposures Until the frame counter @ showsSet the ASA film speed Set th~ camera for automatic Operahon.11Hold the camera Steady Focus on the subjectSet the lens aperture Infocus Inside the viewfinderTake the picture Advance the filmRewind the film Push in the rewind button @Rem~ve the film Cartndge.15 Turn the camera off Controls in Detail Shutter speed dialControls in Detail Stop action Subject motion blur Ill Exposure memory lock buttonExposure compensation dial @ ASA film speed dial @Memo holder @ Shutter release button @Film advance lever @ Frame counter @Multiple exposure lever @l BatteriesBackup mechanical release lever Depth-of-field preview button CDControls in Detail Meter coupling lever For non-AI Nikkor lenses with automatic diaphragmsSelf-timer Mirror lockup leverAccessory shoe @ Eyepiece shutter lever @Sync terminal @ Viewfinder illuminator @Film plane indicator @ Infrared focusing indexAbout the Liquid Crystal Display LCD Evrangeofthecamera EV Range of the Camera EV Chart Accessories Interchangeable viewfindersInterchangeable focusing screens Accessories Motor Drive Speedlights Other Accessories Tips on Camera Care Never attempt to disassemble or repair the camera yourself Specifications Frame counter
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