Modern Classic SLRs Series :
Nikon F2 - Flash Units and/or Speedlights
for Macro Photography & Various Flash Couplers

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SM-1.jpg SR-1.jpg
Nikon Original SR-1/SM-1 Ring lights

Just came across these two rarely seen images of the original SM-1 and SR-1 macro ring light by Nikon in a late sixties literature. Managed to scan and restore close to its original form in Photoshop program.

More info of SR-1/SM-1 is available at SB-1-SB21 section.

SM-2 and SR-2 Ringlights
More info on SR-2/SM-2 is available at SB-1-SB21 section.)

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The SM-2 and SR-2 Ringlights were introduced in 1975 and are the same as the SM-1(52mm mount) and SR-1 (reversed lens mount), but it can also be powered by the LA-1 AC or the LD-1 DC power source.

The flash tube is circular, providing "shadowless" lighting. Exposure is figured by using charts that calculate subject-to-flash distance.

Along with the Medical Nikkor 200mm f/5.6 Auto which has an auto flash built in, the SM-1/SR-1 & the SR-2/SM-2 featured above were still generally considered as specialized flash units.

sr2sm2setup.jpg New SB21.jpg
Other more popular consumers flash units in shoe mount or handle mount were actually introduced quite late.

<<<<<<<<--------- The SB-21 A/B is a newer series of macro flash unit and I am NOT too sure with its compatibility with F2 bodies..

The big event in 1977 was when Nikon announced their AI mount (Automated Maximum aperture indexing), an new way of automated lens/body coupling/metering system for Nikon SLR body with the newer range of Nikkor lenses with such capability, five Nikon SLR camera models (Nikon F2AS, Nikon F2A, Nikon FM, Nikkormat FT3 & Nikon EL2) were introduced at the same time which made 1977 such a memorable and eventful year for Nikon.

Coincided with the launching of these important SLR models where were true classic at their own time, there were also four electronic flashes (SB-2, SB-3, SB-4, and SB-5) introduced at almost the same time with the various camera models. These flash units, each with slightly different features and power also made Nikon photographic system having one of the largest selection of artificial light source for their entire series of SLR bodies during its time.

Nikon SB-3.jpg SB2/3 Dial DISC.jpg

The Nikon SB-2 Speedlight was a dedicated unit for Nikon F2 where it connects to the side of the the prism and activates the ready light; Nikon SB-3 Speedlight are basically the same unit but came with a standard ISO-type hot shoe for the Nikkormat models, Nikon FM and also the FE introduced a year later in 1978.

Automatic flash units usually are incorporated with a SCR (Silicon-Controlled Rectifier) circuitry and a SPD cell located in front of the flash. The SPD cell measures the light reflected back from the subject and shuts off the power circuitry when the correct amount of light has been reached. This forms the basic working principle of the Automatic settings on most of today's flash units. Generally, flash with such "energy saving" feature is also sometime referred as " thyristor".

Among the various options made available within Nikon's products list; there are a few flash units which are truly made-for-F2 flash units. The earlier featured Nikon SB-2 was one of them.
Nikon SB-4 and SB-3 speedlights can be usable on a F2 only via AS-1 flash coupler as both of these units have an ISO flash foot and thus, they are meant more for other Nikon camera models that has ISO-type accessory shoe. Another shoe mount flash which was also designed as a companion flash for F2 was Nikon SB-7E which actually was introduced a year later in 1978. SB-7E also has a identical twin unit called SB-8E which was designed for SLR models that have conventional standard ISO-type hotshoe.

SB-7E also provides similar "dedication" of viewfinder ready light function. It was claimed to be the first compact flash that was incorporating a improved high-efficiency flash tubes. Most of these Nikon portable flash units are quite identical with one another in appearance, cosmetic and basic features. The SB-7E, as with the later SB-10 etc. also offers a 2-f/stop Automatic and a Manual setting. An exposure calculator dial is located at the top of the flash for easy reference. It uses four AA batteries to power and provides a moderate recycle time between 1 to 8 seconds (depends on efficiency of cells); the guide number is 25 (meters, ASA 100) which is also quite close with flash units such as SB-10. Incidentally, the angle of illuminance also only covers for 35mm lens, and you have to put on a wide-angle Adapter (SW-2) in order to extend its coverage for a 28mm lens (Naturally with a reduction of power).

Subsequent model number for Nikon shoe mount flash units were either came with ISO-type accessory shoe or with a few exceptions (SB-12, SB-16A, SB-17) which were Nikon F3-specific flash units which has an additional TTL flash exposure control capability. You can still, in a way use those flash onto the Nikon F2 via flash coupler (minus the viewfinder flash ready light feature).

The dedicated function of providing a ready light inside the viewfinder is fine EXCEPT to someone who often shoot with flash - you have to unmount the flash unit to reload or unload finished film roll from the camera ! Nikon carried that irritating feature to the F3 until it was eventually patched by a accessory called AS-7 flash coupler, which permits removal of film roll from the camera without the hassle of detaching the flash unit first from the rewind crank .

<<<<<<<<<----- Note when mounting a dedicated flash with F2 type mounting foot, it covers up the film rewind crank. You have to detach the flash before you can perform film rewinding.

Remember or bookmarked here for future reference:

AS-2.jpg AS-5.jpg AS-3.jpg AS-1*
Couples Speedlights with ISO-type mounting foot to hot shoe of Nikon F/F2 series cameras.
Couples Nikon F/F2-dedicated Speedlights to ISO type hot shoe
Couples Nikon F/F2-dedicated Speedlights to hot shoe of Nikon F3 series cameras.
AS-5 ****
Couples Nikon F3-dedicated Speedlights to hot shoe of Nikon F/F2 series cameras.

* The AS-1 accepts accessories with an ISO-type foot and converts them to the F/F2-type foot. When used on the F or F2, it provides a "hot" contact. * * The AS-2 accepts accessories with the F/F2-type foot and converts them to an ISO-type foot. When used on an ISO hotshoe, it provides a "hot" contact. * * * The AS-3 accepts accessories with the F3-type foot and converts them to the F/F2-type foot. It provides a "hot" (sync) contact only, and does not allow for automatic shutter speed switching or TTL flash control. * * * * The AS-5 accepts accessories with the F/F2-type foot and converts them to the F3-type foot. It provides a "hot" (sync) contact only, and does not allow for automatic x-sync shutter speed selection or TTL flash control.

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Various Options in Power Sources, Flash Accessories and more info on 200mm Medical Nikkor lens with a built-in flash.

Nikon Flash Units: BC-Series| Original Nikon Speedlight
SB-2 | SB-3 | SB-4 | SB-5 | SB-6 | SB-7E | SB-8E | SB-9 | SB-E | SB-10
| SB-12 | SB-14 | SB-140 UV-IR| SB-15 | SB16A | SB-17 | SB-18, SB-19 | SR2/SM-2 Ringlights | SB-21A (SB-29) Macro flash | Flash Accesories | SF-1 Pilot Lamp

Nikon AF-TTL Speedlights | SB-20 | SB-22 | SB-23 | SB-24 | SB-25 | SB-26 | SB-27 | SB-28 | Nikon SB-29(s) | Nikon SB-30 | Nikon SB-600 | Nikon SB-880 (updated)
Nikon AF-TTL Speedlight DX-Series:
Nikon SB-28DX | SB-50DX | SB-80DX (updated)

System Accessories: Motor Drives / Prisms / Screens / Macro / Film Backs / Flash Other Accessories: DS-1 / DS-2 / DS-12 / eyepiece / DH-1 / cases / Cable releases / Miscellaneous

| Message Board | for your favourite Nikon F2 Series SLR model(s)
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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
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Others: Noct Nikkor | OP-Nikkor | UV Nikkor 55mm 105mm | Focusing Units | Bellows-Nikkor 105mm 135mm
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35~200mm | 43~86mm | 50~135mm | 50~300mm | 70~210mm E | 75~150mm E | 80~200mm | 85~250mm |
100~300mm | 180~600mm | 200~400mm | 200~600mm | 360~1200mm | 1200~1700mm

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


Nikon F
| Nikon F2 | Nikon F3 | Nikon F4 | Nikon F5 | Nikon F6 | Nikkormat / Nikomat |
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| Nikon FE/ FA | Nikon EM/FG/FG20 | Nikon Digital SLRs | Nikon - Other models

MIR Supports for Photographic Community: Various Message Boards/Community Forums
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Recommended links to understand more technical details related to the Nikkor F-mount and production Serial Number: by: my friend, Rick Oleson by: Hansen, Lars Holst

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Copyright © 2000. leofoo ®. MIR Web Development Team.

In memory of my friend Com. Augusto Staut, Brazil, 1971-2000.

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. Keat Photo, Kuala Lumpur for providing their Nikon F2A to take some images for this site; again, Mr Edward Ngoh the great camera collector who provides us his collection of F2AS with MD-2; 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; 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. Contributing photographers or resellers: Jen Siow, Foo KokKin, Arthur Teng, Mark Fallander, John Ishii, Ed Hassel, YoonKi Kim, Jean-Louis, M.Dugentas (Dell, Mr "Arsenall" and a few images mailed in from surfers with no appropriate reference to their origin. Dedicated to KU Yeo, just to express our mutual regrets over the outcome of a recent corporate event. Made with a PowerMac, broadcast with a Redhat Linux powered server.

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