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Credit: The contents of this manual was converted via a help hand from Mr. Juergen Kloos <juergen.kloos@gmx.net>. For other instructions, see the Nikon F4/F4s instruction manual. The F4E consists of an F4 camera body with Multi-Power High-Speed Battery Pack MB-23.

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MB-23 NOMENCLATURE .....
BATTERY INSERTION AND CHECKING
BATTERY POWER ......... REMOVING/ATTACHING THE MB-23 ........ USING THE NIKON 250-EXP. MULTI-CONTROL BACK MF-24 ......... USING THE MB-23 SHUTTER RELEASE BUTTON NOTE FOR MB-23 ......... POWER SOURCE CAPACITIES ......... DIMENSIONS AND WEIGHT ..............

BATTERY INSERTION AND CHECKING BATTERY POWER

Use the supplied battery holder MS-23 for six AA-type alkaline manganese batteries or optional NiCd battery MN-20. Depress the battery-release button and remove the MS-23 holder from the MB-23.

With MS-23

1.Insert six AA-type alkaline manganese batteries (LR6) into the MS-23 as indicated.
2. Next, slide the unit into the MB-23 until it clicks into position.

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3. Depress the battery check button. . If both LEDs light up, power is sufficient.
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Note: If only one LED comes on, replace the batteries. If neither LED lights up, batteries are exhausted or improperly loaded.


With MN-20

1. Slide the MN-20 into the MB-23 until it clicks into position.
2. Depress the battery check button. If the right LED lights up, battery power is sufficient.

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Note: If the right LED fails to light up, recharged the MN-20 battery unit. When power is sufficient, both right and left LEDs may light up. The left LED, howver, is not a gauge of battery power.

REMOVING/ATTACHING THE MB-23

To remove

1. Turn the grip release lever counterclockwise as far as it goes.
2. Turn the lock screw to the left (with camera standing upright) until the MB-23 disengages from the camera body.

NOTE: Do -not turn the lock screw while the grip release lever is locked; doing so could damage the product.

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To attach

1. Turn the MB-23 grip release lever counterclockwise (direction of the arrow) as far as it goes.

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2. Slide the MB-23 onto the F4 body along its railings. Then, making sure the mounting screw and guide pin are aligned with the F4's tripod socket and guide hole, turn the lock screw to the right (when camera is standing upright) until the MB-23 fits tightly to the camera body.
3. Turn the grip release lever . clockwise to lock the MB-23 in place.

USING THE NIKON 250-EXP. MULTI-CONTROL BACK MF-24

Attaching an MF-24 to a F4 camera with attached MB-23.

Also refer to the
Instruction Manual for MULTI-CONTROL BACK MF-24

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1. Remove the MB-23 from the F4 camera body.
2. Remove camera back and attach the MF-24 (see "SETTING UP" steps 2 to 6 of the MF-24 instruction manual).
3. Re-attach MB-23 to the camera body. (See illustrations)
4. Plug MF-24 power cord into the terminal on the MB-23.

To detach MF-24, follow procedures in reverse order: Disconnect MF-24 from the M13-23, then remove the MB-23 from the camera body. Next, remove the MF-24 and re-attach camera back and MB-23.

USING THE MB-23 SHUTTER RELEASE BUTTON

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Turn the shutter release button lock lever counterclockwise so the red index is showing. Note that the shutter cannot be released if the camera's film advance mode selector is set at L. To lock the shutter release button, turn the shutter release button lock lever so the red index is hidden. This prevents accidental shutter release.

NOTES FOR MB-23

  1. Because the performance of alkaline-manganese batteries deteriorates at low temperatures, you are advised to use the MN-20 NiCd battery unit when shooting in cold temperatures; to minimize power deterioration, store the MN-20 in a warm place until you are ready to shoot.
  2. When you expect the MB-23 to sit unused for a long period, remove the MN-20, or remove the batteries from the MS-23 holder.
  3. When the 250-Exp. multi-control back terminal is not in use, keep the terminal cap screwed on.

POWER SOURCE CAPACITIES

The following table shows the number of film rolls per set of fresh or fully charged batteries.
 

With 24-exp. film rolls

With 36-exp. film rolls

Battery type At 20°C (68°F) At -10°C (14°F) At 20°C (68°F) At -10°C (14°F)
Alkaline-manganese approx. 135 approx. 22 approx. 90 approx. 15
NiCd battery MN-20 approx. 210 approx. 110 approx. 150 approx. 80

Note: Performance are based on operation with an AF-Nikkor 35-70mm f//3.3~f/4.5 lens manipulated through its full range (from infinity to the shortest distance and back again) on every shot, with a shutter speed of 1/250 sec.

DIMENSIONS AND WEIGHT

Dimensions (W x H x D): Approx. 169 x 157 x 77mm or approx. 6.7" x 6.2" x 3"
Weight: Approx. 1,400g or 49.4 oz. (without MS-23/MN-20)

Credit: The contents of this manual was converted via a help hand from Mr. Juergen Kloos <juergen.kloos@gmx.net>. For other instructions, see the Nikon F4/F4s instruction manual. The F4E consists of an F4 camera body with Multi-Power High-Speed Battery Pack MB-23.

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