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Nikon Multi-Power High Speed Battery Pack MB-23 (Nikon F4e)

A late inclusion for alternate power supply was a Nikon Multi-Power High Speed Battery Pack MB-23 which effectively termed the MB-23 powered Nikon F4 as a "Nikon F4e". Prior to its announcement, originally, everyone thought it was a new revised/improved version of a Nikon F4 but only to realized later it was an alternate power source unit. Somehow the battery pack has a rather "odd" design when mounted with a Nikon F4 - I personally feel the elegant look of the F4/MB-21 is gone.... but on a practical aspect, the Nikon F4e is by far the most flexible F4 in relation to its ability to adapt to various power sources.

The complete Nikon F4e system consists of unitized battery pack/hand grip assembly and one-piece battery tray MS-23 for AA-type alkaline or NiCd batteries, or optional NiCd Battery Unit MN-20. A remote terminal and the terminal for 250 exposures Bulk Film Multi-Control Back MF-24 are provided for the MB-23 as well as battery checker LEDs. Optional Quick Charger MH-20 can charge up to two MN-20 units sequentially, operate automatically with voltage from 100V to 240V Nikon. <<< --- Credit: No one wants to response to my request in getting a Nikon F4e, so I have to scanned from a 1994's Nikon Sales Brochure

Specification for Multi-Power High Speed Battery Pack MB-23
| Also check Instruction Manual for MB-23 (Nikon F4e) section |

1. Usable Nikon camera(s): Nikon F4 Series, a standard equipment for F4e
2. Power source: Ni-Cd battery (MN-20) and/or AA-type alkaline-manganese battery (LR6 x 6) (using AA-type battery holder MS-23)

3. Attaching to the Body: Attach the MB-23 to the body and secure it with tripod mounting screw (with lock screw) and grip release lever. Lock screw release-protective mechanism is provided. (Set to "release position' to release the protection.) 4. Vertical Position Shutter Release Button. Shutter release button lock lever provided

5. Battery Check: LED indicators - Voltage at which LED indicators switch over (common to MB-21)
i) Two LEDs (light up) - One LED at 7.50 ± 0.05V
ii) One LED (lights up) - No LED at 6.94 ± 0.05V
Battery check level changes over according to cartridge identification switch.

* Alkaline-manganese batteries: When push button is pushed - LED 1&2 light up - Battery power sufficient; Only LED2 lights up - Battery power insufficient, but batteries can be used when one LED indicator lights up, even though the film does not advance at regular high film advance rates.
**Ni-Cd batteries: When push button is pushed - LED2 light up - Battery power sufficient; LED2 not light up - Battery power insufficient. In both power sources used, it is recommended to change the battery when no LED indicator lights up, even if the shutter release operation is not locked.

a. When using AA-type alkaline-manganese battery (LR6). When battery check button is depressed: Two LEDs light up - Battery power is enough. One LED lights Up - Replace batteries with fresh ones. No LED lights up - Replace batteries with fresh ones.

NOTE: MS-23 which takes more AA-batteries (6x-AA) than the 3x-AA MS-21 AA-Batteries Holder. Both are not compatible with another (MB-21/MB-23).

b. When using Ni-Cd battery (MN-20). When battery check button is depressed: One LED lights up - Battery power is enough. No LED lights up - Recharge batteries. Note: *Two LED indicators may light up when loading Ni-Cd batteries immediately after they have been recharged. (This has nothing to do with battery checking.)

6. Battery Pack contacts 1) Shutter Prerelease signal. (2) Shutter release signal (3) Film advance signal (4) MF-24 mounting detection signal (5) Battery check signal (6) power source (7) GN1

7. Battery Contacts: Positive electrode (2) Negative electrode

8. MF-24 Terminal (1) Shutter prerelease signal (2) Shutter release signal (3) Film advance signal (4) MF-24 mounting detection signal (5) Power Source (6) GND 9. Remote Terminal (1) Remote signal (2) GNI)

10. Number of 36-Exposure Film Rolls to be Taken (By driving the lense from infinity to the closest distance for each shot Lens: AF 35-70mm f/3.5 ~ f/4.5 at room temperature (20°C) and a shutter speed of 1/250 sec. or higher. Film advance mode: CH mode. AF mode: AF-C mode.

Battery Types	20°C	-10°C
AA-type alkaline-manganese battery (LR6)	Approx. 90 rolls	Approx. 15 rolls
Ni-Cd battery (MN-20)	Approx. 150 rolls	Approx. 80 rolls

11. Notice on using MB-23 a. When using vertical position shutter release button: Set film advance mode selector to any mode other than L (lock), and Bet shutter release button lock lever to ON position (you can see red mark); b. When not using terminal for 250-exp. Multi-Control Back: Keep cap on the terminal (for moisture-protective measures); c. When not using remote terminal: Keep cap on the remote terminal (for moisture-protective measures); d. It is recommended that you use NiCd batteries (MN-20) for better performance of AA-type alkaline-manganese batteries stored in the holder at lower temperatures. Note* For better performance at low temperatures, keep them warm until they are actually used. If you want better performance and long extended shooting, try investing into a DB-6 external power pack. Nikon External Power Cord MC-28 is required to hook the DB-6 with MB-23.

12 . Ambient Temperature Rated performance guaranteed in the range of -10°C to 40°C. Normal operation in the range of -20°C. to -10°C. MB-23's battery checking is similar to MB-21 (refer to MB-21 section for power various level indicators). The socket/jack (concealed by the cover) is the terminal to connect the MB-23 to power the 250 exp. Bulk Film Back MF-24 (Note: the MF-23 Multi-Control Function back is powered by button cell).

Related Information/Accessories relating to Nikon F4e:

	NICAD (NiCd) Battery Pack MN-20 Used with MB-23 Battery Pack, the MN-20's NiCad batteries are better suited than other batteries for cold-weather operation. Shoot approximately 80 rolls of 36 exposures at 14° F degree (-10°C).
	If NiCd is not used, there is a replacement battery holder for MB-23. Allows the use of 6 AA batteries. To avoid confusion with the MS-21 designed for the MB-21, here is the Nikon Product Number: 4640 NAS

<<< --- Credit: Image courtesy of Mr. Alex Gong ® <Aventrade@aol.com> Surprise, surprised ! - he is actually a Malaysian that lives in the US (Los Angeles, California) Image copyright © 2003. All rights reserved. Please respect the visual property of the contributing photographer By the way, I got to know him via his Ebay sales where Alex also has a Ebay Store, selling used Photo equipment..

There is not all - here is one solution for the one who often has to work for extended hours in the cold ...

External Battery Pack DB-6 which is used for extended power usage - especially during prolonged or low-temperature shooting, the Nikon F4E can use with the DB-6, which uses six D-type batteries, as an alternative power source. The DB-6 supplies 9V DC current via Nikon External Power Cord MC-28 which has a terminal that slides right into the MB-23 (For use with DB-6 and MB-23 Connects external battery pack to camera.). All these options have their respective strength (and inconveniences in operation), budget and specification to fulfill individual requirements.

Nikon Quick Charger MH-20 is specifically for the F4E camera. It is the exclusive charger for the NiCd battery unit MN-20 which is used with Nikon Multi-Power High Speed Battery Pack MB-23. With this new charger, recharging time for one NiCd battery is approx. 90 minutes (approx.. 180 minutes for two battery packs). I.e. It holds two MN-20 batteries and charges them one at a time in approximately three hours).

<<< --- Credit: Image courtesy of Mr. Uri Zakay ® <uri.zakay@btinternet.com> Image copyright © 2003. All rights reserved. Please respect the visual property of the contributing photographer

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Instructions how to install and remove batteries on MB-21 (Nikon F4s)
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Special Application lenses: Micro-Nikkor Lenses - 50mm~55mm -60mm 85mm -105mm 200mm Micro-Zoom 70-180mm Perspective Control (PC) - 28mm 35mm PC-Micro 85mm Dedicated Lenses for Nikon F3AF: AF 80mm f/2.8 | AF 200mm f/3.5 EDIF Depth of Field Control (DC): 105mm 135mm Medical Nikkor: 120mm 200mm Reflex-Nikkor Lenses - 500mm 1000mm 2000mm Others: Noct Nikkor | OP-Nikkor | UV Nikkor 55mm 105mm | Focusing Units | Bellows-Nikkor 105mm 135mm Nikon Series E Lenses: 28mm35mm50mm100mm135mm | E-Series Zoom lenses: 36~72mm75~150mm70~210mm

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Tele-Converters: TC-1 | TC-2 | TC-200 | TC-201 | TC-300 | TC-301 | TC-14 | TC-14A | TC-14B | TC-14C | TC-14E | TC-16 | TC-16A | TC-20E

Recommended links to understand more technical details related to the Nikkor F-mount and production Serial Number:
http://rick_oleson.tripod.com/index-153.html by: my friend, Rick Oleson
http://www.zi.ku.dk/personal/lhhansen/photo/fmount.htm by: Hansen, Lars Holst
http://www.mir.com.my/rb/photography/hardwares/nikonfmount/lens2.htm
http://www.photosynthesis.co.nz/nikon/serialno.html

As Nikkor G-Series NIKKOR lenses cannot adjust aperture(s) when operating in manual exposure control even with certain earlier AF Nikon SLR camera models. Similarly, not ALL features provide in a modern AF-S series AF-Nikkor lenses can be utilized fully with a Nikon F4. Please refer to your local distributor for compatibility issue(s).

PLEASE NOTE: Complimentary links are appreciative but it is not necessary, I have limited bandwidth here in this server... So, PLEASE don't distribute this URL to any bulk mailing list or unrelated user-groups, just be a little considerate, thank you. (The more you distribute, the slower this server will response to your requests...). I am NOT a Nikon nor Nikkor expert, so don't send me any mails, use the Message Board Instead. While the content prepared herein should be adequate for anyone to understand and evaluate whether you should invest into a used Nikon F4 pro-camera system for your kind of photography. Well, IF you like what you have seen so far, please help to perfect this site by reporting any broken links or any errors made.

About this photographic site.

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Credit: Chuck Hester, US for his patience, encouragement and help to setup the various content in this site; Robert Johnson for some of his original images on the F2H-MD appeared in this site; my ex-staff, KiaSu for his superb 3-D logo appeared in this Nikon F2 site; Marc Vorgers from Holland who generously provide me with some of his images of F2AS; MCLau®, who has so much time with me to re-edit the content in this site and not to mention buying a Nikon Coolpix 990 just for this site; Paul Armstrong (pkared@ameritech.net) for his explantion of the FF2 Slidemagic and Nikon F2 Pin Camera Keat Photo, Kuala Lumpur for providing their Nikon F2A to take some images for this site; Mr Edward Ngoh the great camera collector who provides us his collection of F2AS with MD-2; hawkeye.photographic.com for their images on the Speed Magny film backs; Sean Cranor for his image on Nikon F2 25th Anniversary Model; Ted Wengelaar®, Holland for his continuous flow of input on some of the early Nikon bodies; Genesis-Camera for granting permission to use an image of the SS-F2 camera; Mr Sover Wong, Australia for those great images of his rare F2 Gold;CYLeow ®, photo editor of the Star newspaper, Malaysia for some of his images used in this site. Ms Rissa Chan, Sales manager from Shriro Malaysia who has helped to provide some of the very useful input. HiuraShinsaku®, Nikomat ML, Japan for some of his images on various F2 models; my staff, Wati, Maisa, Mai and my nephew, EEWyn®, who volunteered and helping me did so many of the film scanning works; Hong-sien Kwee of Singapore for all the Nikon F2 Pin camera images appeared in this site; Luigi Crescenzi for many of his images on the Nikon F2 Titan; John for two of his images of the Nikon F2/T used in this site; Contributing photographers or resellers: Jen Siow, Foo KokKin, Arthur Teng, Mark Fallander, John Ishii, Ed Hassel, YoonKi Kim, Jean-Louis, M.Dugentas (Dell Corner.com.), Mr "Arsenall", Yang Zi Xiong and a few images mailed in from surfers with no appropriate reference to their origin. Note:certain content and images appeared in this site were either scanned from official marketing leaflets, brochures published by Nikon and/or contribution from surfers who claimed originality of their own work to publish in this site based on educational merits. The creator of this site will not be responsible for any discrepancies that may arise from such possible dispute except rectifying them after verification."Nikon", "Nikkormat", "Nippon Kokagu KK" & "Nikkor" are registered tradename of Nikon Corporation Inc., Japan. A site made with an Apple IMac.